fix: sync deletion propagation, add base64 util, timeout, and merge improvements

Critical: - Add deleted column: deleteMeasurement now soft-deletes, merge filters out deleted items based on updatedAt (was: deletions were resurrected) - Replace btoa with UTF-8-safe encodeBase64 utility for Hermes compat Important: - Preserve createdAt when overwriting duplicate-date measurements - Add 15s AbortController timeout to all WebDAV fetch calls - Revert broken date prefilling regression (MeasurementForm) - getAllMeasurements/latest/byDate now filter deleted records - Replace Dimensions with useWindowDimensions for rotation awareness - Replace silent catch with console.warn in HistoryScreen Tests: 8 new tests for deletion merge cases and soft-delete queries
2026-08-05 20:55:14 +02:00
32 changed files with 542 additions and 3404 deletions
--- a/.gitignore
+++ b/.gitignore
@ -111,12 +111,6 @@ test/fixtures/
 test/sample-pdfs/
 test/output/

-# Expo
-.expo/
-
-# APK builds
-*.apk
-
 # Temporary files
 temp/
 tmp/
--- a/App.tsx
+++ b/App.tsx
@ -5,18 +5,8 @@ import DashboardScreen from './src/screens/DashboardScreen'
 import NewMeasurementScreen from './src/screens/NewMeasurementScreen'
 import HistoryScreen from './src/screens/HistoryScreen'
 import SettingsScreen from './src/screens/SettingsScreen'
-import MeasurementDetailScreen from './src/screens/MeasurementDetailScreen'
-import { Measurement } from './src/types'

-type RootStackParamList = {
-  Dashboard: undefined
-  NewMeasurement: { measurement?: Measurement }
-  History: undefined
-  MeasurementDetail: { measurementId: string }
-  Settings: undefined
-}
-
-const Stack = createNativeStackNavigator<RootStackParamList>()
+const Stack = createNativeStackNavigator()

 export default function App() {
  return (
@ -37,11 +27,6 @@ export default function App() {
          component={HistoryScreen}
          options={{ title: 'Historie' }}
        />
-        <Stack.Screen
-          name="MeasurementDetail"
-          component={MeasurementDetailScreen}
-          options={{ title: 'Meting' }}
-        />
        <Stack.Screen
          name="Settings"
          component={SettingsScreen}
--- a/README.md
+++ b/README.md
@ -1,117 +1,24 @@
 # Weegschaal App

-_*Gemaakt met vibecoding — DeepSeek V4 Pro*_
+React Native (Expo) app voor het handmatig invoeren van meetgegevens van een slimme weegschaal. Data wordt lokaal opgeslagen in SQLite en gesynchroniseerd met Nextcloud via WebDAV.

-React Native (Expo) app voor het invoeren en synchroniseren van lichaamsmetingen (weegschaal). Data wordt lokaal opgeslagen in SQLite en gesynchroniseerd via een eigen REST API met outbox-pattern sync.
+## Meetwaarden

-## Inhoud
-
- [Functionaliteit](#functionaliteit)
- [Schermen](#schermen)
- [Synchronisatie](#synchronisatie)
- [Server-side API](#server-side-api)
- [Beveiliging](#beveiliging)
- [Offline resilience](#offline-resilience)
- [Ontwikkeling](#ontwikkeling)
- [Build & deploy](#build--deploy)
- [Testen](#testen)
- [Licentie](#licentie)
-
-## Functionaliteit
-
- **Metingen invoeren** van een slimme weegschaal: gewicht, BMI, vetpercentage, vetmassa, spierpercentage, spiermassa, buikvet en stofwisseling
- **Dashboard** met laatste en voorlaatste meting (direct zichtbaar via progressieve loading), gewichtsverschil, en grafieken (gewicht, vetmassa, spiermassa)
- **Delen** van meetresultaten als PNG-afbeelding via WhatsApp, e-mail, etc.
- **Historie** van alle metingen, gesorteerd op datum
- **Offline-first**: metingen worden lokaal opgeslagen en later automatisch gesynchroniseerd
- **Instellingen** voor API-configuratie en handmatige sync
+- Gewicht (kg)
+- BMI
+- Vetpercentage (%)
+- Vetmassa (kg) — automatisch berekend
+- Spierpercentage (%)
+- Spiermassa (kg) — automatisch berekend
+- Buikvet (index)
+- Stofwisseling in rust (kcal)

 ## Schermen

-| Scherm | Beschrijving |
-|--------|-------------|
-| Dashboard | Progressive loading: laatste 2 metingen direct zichtbaar, grafieken volgen daarna |
-| Nieuwe meting / Wijzigen | Formulier met datumkiezer, waarden vooraf ingevuld vanaf laatste meting |
-| Meting detail | Alle meetwaarden met knoppen voor wijzigen en verwijderen |
-| Historie | FlatList van alle metingen, pull-to-refresh, tik voor detail |
-| Instellingen | API URL + token, opslaan/wissen, handmatige sync |
-
-## Synchronisatie
-
-De app synchroniseert via een zelfgebouwde REST API. Geen WebDAV, geen bestandssync — pure delta-sync.
-
-### Hoe het werkt
-
-1. **Outbox pattern**: elke meting heeft een `syncStatus` — `pending` (nieuw/gewijzigd), `pending-delete` (verwijderd), of `synced` (in sync met server)
-2. **Push vóór pull**: eerst worden lokale wijzigingen (`pending` + `pending-delete`) naar de server gepusht, daarna pas remote changes opgehaald
-3. **Local-first merge**: remote data overschrijft nooit lokale `pending` of `pending-delete` records — de gebruiker wint altijd
-4. **Verwijderen**: `setDeletedAt(id)` lokaal + `updateSyncStatus(id, 'pending-delete')` → push in outbox-fase → server DELETE → hard delete in pull-fase
-5. **Cursor tracking**: `lastSyncAt` (SecureStore) voor delta-pull, alleen records sinds laatste sync
-
-### Waarom outbox pattern?
-
-Betrouwbaarder dan timestamp-only push: `syncStatus` markeert expliciet wat gepusht moet worden, onafhankelijk van klokverschillen. Push vóór pull voorkomt dat eigen wijzigingen overschreven worden door oudere remote data. Local-first merge garandeert dat de gebruiker nooit data verliest.
-
-### Offline resilience
-
-Bij netwerkfout tijdens opslaan blijft de meting lokaal staan met `syncStatus='pending'`. De outbox (`getPendingRecords()`) pikt hem automatisch op bij de volgende sync of dashboard-focus.
-
-## Server-side API
-
-**Stack**: nginx, PHP 8.5 (Slim Framework 4), MariaDB, Let's Encrypt SSL, SELinux
-
-**Endpoints**:
-
-| Methode | Pad | Auth | Beschrijving |
-|---------|-----|------|-------------|
-| `GET` | `/api/v1/measurements?since=ISO` | Bearer | Delta-sync |
-| `POST` | `/api/v1/measurements` | Bearer | Upsert (INSERT ON DUPLICATE KEY) |
-| `DELETE` | `/api/v1/measurements/:id` | Bearer | Soft delete (`deleted=1`, update `updated_at`) |
-
-**Database**: MariaDB met drie tabellen — `users`, `auth_tokens`, `measurements`. De `measurements` tabel gebruikt `ON DUPLICATE KEY UPDATE` voor conflictvrije upserts.
-
-**Bestandsstructuur**:
-```
-/usr/share/nginx/html/weegschaal-api/
-├── composer.json
-├── config.php
-├── public/
-│   └── index.php
-└── src/
-    ├── Auth.php            ← Bearer token validatie middleware
-    ├── Database.php        ← PDO singleton
-    ├── Measurements.php    ← CRUD + sync queries
-    └── helpers.php         ← JSON response, datetime conversie, logging
-```
-
-## Beveiliging
-
-### Authenticatie
-
-Bearer token-validatie via `auth_tokens` tabel. Tokens worden handmatig aangemaakt via SQL.
-
-### Logging
-
-Elke mislukte authenticatie en 404 wordt gelogd naar `/var/log/weegschaal-api/auth.log`:
-
-```
-[2026-07-20 18:06:07] 401 94.157.121.179 GET /api/v1/measurements - invalid Bearer token
-[2026-07-20 18:06:07] 404 94.157.121.179 GET /.env - unknown route
-```
-
-### Fail2ban
-
-Jail `weegschaal-api`: 5 foutieve pogingen binnen 5 minuten = 1 uur IP-ban. Filter regex:
-
-```
-^\[.*\] 401 <HOST> .* - .*$
-```
-
-Logrotering wekelijks, 12 weken retentie.
-
-### SELinux
-
-Logmap heeft context `httpd_log_t` gezet via `semanage fcontext`.
+- **Dashboard** — laatste meting (groene kaart) + drie losse grafieken onder elkaar (gewicht, vetmassa, spiermassa), elk met eigen y-as-schaal en 30-dagen filter gerekend vanaf de nieuwste meting
+- **Nieuwe meting** — datumkiezer bovenaan (standaard vandaag), formulier vooraf ingevuld met waarden van de laatste meting. Opslaan-knop altijd in beeld (buiten ScrollView). Bij opslaan wordt automatisch gesynchroniseerd met Nextcloud
+- **Historie** — FlatList gesorteerd op ingevoerde datum (nieuwste bovenaan), pull-to-refresh
+- **Instellingen** — WebDAV configuratie (URL, gebruikersnaam, wachtwoord met oogje voor tonen/verbergen), handmatige sync, wissen met bevestigingsdialoog

 ## Ontwikkeling

@ -122,25 +29,15 @@ npx expo start

 Scannen met Expo Go op Android of iOS.

-## Build & deploy
+## Synchronisatie

-```bash
-# APK bouwen (lokaal via EAS)
-npx eas build --local --profile apk --platform android
+Data wordt opgeslagen als `weegschaal/measurements.json` in je Nextcloud WebDAV. Vul in het Instellingen scherm het volgende in:

-# Draadloos sideloaden via ADB
-adb-wireless-connect
-adb install -r build-*.apk
-```
+- **URL**: `https://<jouw-nextcloud>/remote.php/dav/files/<gebruikersnaam>/`
+- **Gebruikersnaam**: je Nextcloud gebruikersnaam
+- **Wachtwoord**: je Nextcloud app-wachtwoord

-Vereisten: Android SDK 36, OpenJDK 21, ADB 37+, Gradle 8.14.
-
-## Database migratie
-
-Bestaande SQLite-databases worden automatisch gemigreerd bij `initDatabase()`:
-
- `deletedAt` kolom: toegevoegd via `ALTER TABLE` als deze nog niet bestaat
- `syncStatus` migratie: bestaande records met `syncStatus='local'` worden omgezet naar `'synced'`, nieuwe records krijgen DEFAULT `'pending'`
+Bij sync worden lokale en externe metingen samengevoegd (last-write-wins op basis van `updatedAt`). De map `weegschaal/` wordt automatisch aangemaakt via MKCOL indien deze nog niet bestaat.

 ## Testen

@ -148,8 +45,6 @@ Bestaande SQLite-databases worden automatisch gemigreerd bij `initDatabase()`:
 npm test
 ```

-Tests richten zich op de merge-logica (`mergeMeasurements`) en database-operaties.
-
 ## Licentie

 Public domain (Unlicense)
--- a/app.json
+++ b/app.json
@ -13,9 +13,9 @@
      "package": "nl.eddydevink.weegschaal",
      "adaptiveIcon": {
        "backgroundColor": "#E6F4FE",
-        "foregroundImage": "./assets/icon.png",
+        "foregroundImage": "./assets/android-icon-foreground.png",
        "backgroundImage": "./assets/android-icon-background.png",
-        "monochromeImage": "./assets/icon.png"
+        "monochromeImage": "./assets/android-icon-monochrome.png"
      },
      "predictiveBackGestureEnabled": false
    },
@ -26,17 +26,6 @@
      "expo-sqlite",
      "expo-secure-store",
      "@react-native-community/datetimepicker"
-    ],
-    "extra": {
-      "eas": {
-        "projectId": "9707c719-d5aa-45a4-a6cd-b95ac3d32996"
-      }
-    },
-    "runtimeVersion": {
-      "policy": "appVersion"
-    },
-    "updates": {
-      "url": "https://u.expo.dev/9707c719-d5aa-45a4-a6cd-b95ac3d32996"
-    }
+    ]
  }
 }
--- a/assets/icon.png
+++ b/assets/icon.png
--- a/docs/blog-sync-upgrade.md
+++ b/docs/blog-sync-upgrade.md
@ -1,70 +0,0 @@
-# Van WebDAV naar REST API: een volwassen sync-architectuur voor de weegschaal-app
-
-*20 juli 2026*
-
-De afgelopen dagen heb ik de synchronisatie van mijn weegschaal-app volledig herzien. De app slaat metingen lokaal op in SQLite en synchroniseert ze met een centrale server. Tot nu toe gebeurde dat via WebDAV naar Nextcloud — een simpel JSON-bestand dat telkens in zijn geheel werd gedownload, samengevoegd en teruggeüpload. Functioneel, maar niet ideaal.
-
-## Waarom WebDAV niet voldeed
-
-Het oude sync-mechanisme was primitief: bij elke sync werd het volledige `measurements.json` bestand van de WebDAV-server gehaald, lokaal gemerged op basis van `updatedAt`, en daarna in zijn geheel teruggeschreven. Met 1300+ metingen werd dat bestand steeds groter, en elke sync — ook als er maar één meting was veranderd — verstuurde het hele bestand over de lijn. Bovendien leverde Basic Auth via WebDAV geen fijnmazige controle over wie toegang had, en was er geen logging van foutieve inlogpogingen.
-
-## De nieuwe architectuur
-
-De oplossing is een eigen REST API, gehost op een subdomein van mijn domein, met een MariaDB-backend en Bearer token-authenticatie. De stack:
-
- **Server**: Fedora Linux, nginx, PHP 8.5 (Slim Framework 4), MariaDB
- **Client**: React Native (Expo), expo-sqlite, expo-secure-store
- **Authenticatie**: Bearer token, handmatig aangemaakt via SQL
- **Sync**: incrementeel via `?since=` timestamps — last-writer-wins
-
-### Endpoints
-
-De API kent drie endpoints, allemaal beschermd met Bearer token-validatie:
-
-| Methode | Pad | Werking |
-|---------|-----|---------|
-| `GET` | `/api/v1/measurements?since=ISO` | Delta-sync: alleen metingen met `updated_at > since` |
-| `POST` | `/api/v1/measurements` | Upsert op client-ID — de server accepteert het client-gegenereerde UUID |
-| `DELETE` | `/api/v1/measurements/:id` | Soft delete: zet `deleted=1` en update `updated_at` |
-
-Geen PUT, geen register/token-endpoints. Minimaal en doelgericht.
-
-### Incrementele sync
-
-De sync-flow is nu gebaseerd op timestamps, zonder `syncStatus` enum. Het mechanisme is hetzelfde als wat CouchDB, PouchDB en tal van productie-apps gebruiken:
-
-1. **Delta ophalen**: `GET ?since=lastSyncAt` → alleen gewijzigde records van de server
-2. **Mergen**: last-writer-wins op `updatedAt`. Remote records met `deleted=true` overschrijven lokaal
-3. **Pushen**: alle lokale records met `updatedAt > lastSyncAt` worden naar de server gestuurd
-4. **Verwijderde records**: lokaal een `deletedAt` timestamp gezet, bij volgende sync via `DELETE` naar de server
-5. **High-water mark**: `lastSyncAt` wordt bijgewerkt naar de huidige tijd
-
-Bij een netwerkfout blijft een meting gewoon lokaal staan — de volgende sync pakt hem automatisch op omdat `updatedAt > lastSyncAt`.
-
-## Fail2ban-vriendelijke logging
-
-Een API die op internet staat trekt vroeg of laat ongenode gasten aan. Om hierop voorbereid te zijn logt de API elke mislukte authenticatiepoging naar `/var/log/weegschaal-api/auth.log` in een formaat dat fail2ban direct kan verwerken:
-
-```
-[2026-07-20 18:06:07] 401 94.157.121.179 GET /api/v1/measurements - invalid Bearer token
-[2026-07-20 18:06:07] 404 94.157.121.179 GET /.env - unknown route
-```
-
-De fail2ban jail grijpt in bij 5 foutieve pogingen binnen 5 minuten en bant het IP een uur lang. Ook 404's op niet-bestaande routes worden gelogd — een klassiek signaal van fuzzing-tools.
-
-De logrotering (12 weken, wekelijks) en SELinux-context (`httpd_log_t`) zijn uiteraard geregeld.
-
-## Resultaten delen
-
-Een onverwacht leuke toevoeging: de share-knop op het dashboard. Rechtsboven in de kaart met je laatste en voorlaatste meting zit een deel-icoon. Tik erop, en de hele kaart wordt als PNG-afbeelding geëxporteerd. Je kunt hem direct delen via WhatsApp, Signal, e-mail — wat je maar wilt. De techniek erachter: `react-native-view-shot` vangt de view, `expo-sharing` opent het native deelmenu.
-
-## Wat nog meer is veranderd
-
- **App-icoon**: vernieuwd met een eigen afbeelding
- **Dashboard**: toont naast de laatste meting nu ook de voorlaatste en het gewichtsverschil
- **Laad-indicator**: geen verwarrende "Nog geen metingen" meer tijdens het laden — het dashboard toont nu "Laden..."
- **Database-migratie**: een `ALTER TABLE` zorgt dat bestaande SQLite-databases de nieuwe `deletedAt`-kolom krijgen zonder dataverlies
-
-## Conclusie
-
-Wat begon als een simpel sync-scriptje via WebDAV is uitgegroeid tot een volwaardige REST API met productie-grade logging, fail2ban-integratie, en een UX die het delen van meetresultaten net zo makkelijk maakt als een screenshot. De app doet nu wat hij moet doen: metingen opslaan, synchroniseren, en — sinds kort — met één tik delen met wie je maar wilt.
--- a/docs/build-toolchain.md
+++ b/docs/build-toolchain.md
@ -1,106 +0,0 @@
-# Lokale APK build toolchain
-
-## Overzicht
-
-De Weegschaal app kan lokaal gebouwd worden tot een zelfstandige APK
-zonder EAS cloud. Dit is handig voor snelle iteraties of als je geen
-internetverbinding hebt voor de cloud build.
-
-## Benodigdheden
-
-| Component | Versie | Installatie |
-|---|---|---|
-| Java | OpenJDK 21+ | `brew install --cask temurin` |
-| Android Command Line Tools | laatste | `brew install --cask android-commandlinetools` |
-| Android Platform Tools | laatste | `brew install --cask android-platform-tools` |
-| Node.js | 22+ | `brew install node` |
-| EAS CLI | laatste | via npm (`npx eas`) |
-
-## Android SDK instellen
-
-`ANDROID_HOME` moet gezet zijn in je shell config (`~/.zshrc`):
-
-```bash
-export ANDROID_HOME="/home/linuxbrew/.linuxbrew/share/android-commandlinetools"
-export PATH="$ANDROID_HOME/cmdline-tools/latest/bin:$ANDROID_HOME/platform-tools:$PATH"
-```
-
-Licenties accepteren:
-
-```bash
-yes | $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager --sdk_root=$ANDROID_HOME --licenses
-```
-
-Best practices:
- Gebruik `--sdk_root=$ANDROID_HOME` bij sdkmanager commando's, anders
-  installeert hij naar de verkeerde plek
- De eerste build downloadt automatisch de juiste platform-, build-tools-,
-  NDK- en CMake-versies. Je hoeft ze niet handmatig voor te installeren.
- Wil je ze toch vastzetten: `sdkmanager "platforms;android-36" "build-tools;36.0.0"`
-
-## APK bouwen
-
-```bash
-cd /home/eddy/bin/weegschaal-app
-npx eas build --local --profile apk --platform android
-```
-
-Het build profiel staat in `eas.json`:
-
-```json
-"apk": {
-  "android": {
-    "buildType": "apk"
-  }
-}
-```
-
-De build:
-1. Draait `npx expo prebuild` (maakt `android/` directory aan)
-2. Bundelt de JS bundle via Metro
-3. Voert `./gradlew :app:assembleRelease` uit
-4. Produceert `android/app/build/outputs/apk/release/app-release.apk`
-5. Kopieert het resultaat naar `build-<timestamp>.apk` in de projectroot
-
-## Duur
-
- **Eerste build**: ~13 minuten (Gradle download, NDK/CMake compilatie)
- **Latere builds**: ~2-3 minuten (Gradle daemon werkt door)
-
-## Veelvoorkomende problemen
-
-**`ANDROID_HOME` niet gezet**
-```
-Error: ANDROID_HOME is not set
-```
-→ Controleer of de export in `~/.zshrc` staat en herlaad met `source ~/.zshrc`
-
-**Gradle fault / OutOfMemoryError**
-```
-The daemon will expire after running out of JVM Metaspace
-```
-→ Zet in `android/gradle.properties`:
-```
-org.gradle.jvmargs=-Xmx4g -XX:MaxMetaspaceSize=1g
-```
-
-**Licenties niet geaccepteerd**
-→ Voer `yes | sdkmanager --licenses` uit
-
-## Testen
-
-Voor het bouwen kun je de tests draaien:
-
-```bash
-cd /home/eddy/bin/weegschaal-app
-npm test
-```
-
-## Installatie op Android
-
-```bash
-# Via ADB (als je toestel aan de USB hangt met debugging aan)
-adb install -r weegschaal.apk
-
-# Of handmatig: kopieer APK naar toestel, open bestand, kies 'installeren'
-```
--- a/docs/superpowers/plans/2026-07-20-rest-api-sync-plan.md
+++ b/docs/superpowers/plans/2026-07-20-rest-api-sync-plan.md
--- a/docs/superpowers/plans/2026-07-25-sync-refactor-plan.md
+++ b/docs/superpowers/plans/2026-07-25-sync-refactor-plan.md
@ -1,139 +0,0 @@
-# Sync refactor — Implementation Plan ✅ (completed 2026-07-25)
-
-> Fix 6 sync bugs + herstel architectuur naar best-practice bidirectional timestamp sync.
-> 
-> **Status:** Alle 6 bugs gefixt. 15/15 tests passen. APK build + geinstalleerd.
-
-## Bug Overzicht
-
-| # | Bug | Oorzaak | Fix |
-|---|-----|---------|-----|
-| 1 | Server `deleted:true` wordt genegeerd | `mergeMeasurements` mapt `deleted` niet naar `deletedAt` | Detecteer `(r as any).deleted` in merge, zet `deletedAt = r.updatedAt` |
-| 2 | `setDeletedAt` update `updatedAt` niet | Alleen `deletedAt` wordt gezet, `updatedAt` blijft oud | Voeg `updatedAt = ?` toe aan de UPDATE |
-| 3 | Pull-then-push double-push | Na upsert van remote records hebben die `updatedAt > lastSyncAt` → worden teruggestuurd | Skip in push-fase records die uit remote pull komen en waar remote.updatedAt ≥ local.updatedAt |
-| 4 | Hard delete ondanks falende API | `removeMeasurement()` wordt ALTIJD aangeroepen, ook na catch | Alleen hard delete bij API-succes |
-| 5 | `syncStatus` dead column | In schema, nooit gebruikt | Laat staan, geen impact |
-| 6 | `getAllMeasurements` filtert `deletedAt` niet | UI-schermen moeten zelf filteren (`.filter(m => !m.deletedAt)`) | Rename naar `getAllMeasurementsForSync` (ongefilterd), vervang UI-calls door `getAllMeasurements` met `WHERE deletedAt IS NULL` |
-
-## Sync Protocol (vastgelegd)
-
-```
-lastSyncAt = SecureStore.getItem(LAST_SYNC_KEY)
-
-── PULL ──
-remote[] = GET /api/v1/measurements?since=lastSyncAt
-local[]   = getAllMeasurementsForSync()   // ALLE records (incl. deleted)
-remoteUpdatedMap: Map<id, updatedAt>      // track welke IDs + timestamps we binnenhaalden
-
-for each r in remote:
-  remoteUpdatedMap.set(r.id, r.updatedAt)
-  if (r as any).deleted:
-    r.deletedAt = r.updatedAt     // Bug 1 fix
-
-── MERGE ──
-remoteDeletedIds: Set<id>          // track welke remote records 'deleted' zijn
-
-for each r in remote:
-  if (r as any).deleted:
-    remoteDeletedIds.add(r.id)
-
-merged = mergeMeasurements(local, remote)
-
-for each m in merged:
-  remoteUA = remoteUpdatedMap.get(m.id)
-  if remoteUA && new Date(remoteUA) >= new Date(m.updatedAt):
-    // remote won de merge
-    if remoteDeletedIds.has(m.id):
-      removeMeasurement(m.id)     // hard-delete lokaal (server heeft 'm al)
-    else:
-      upsertMeasurement(m)        // remote gewijzigd, niet verwijderd
-  else:
-    upsertMeasurement(m)          // local won of nieuw → gewoon bewaren
-
-── PUSH ──
-cutoff = lastSyncAt ?? '1970-01-01T00:00:00.000Z'
-localChanges[] = getMeasurementsUpdatedSince(cutoff)
-
-for each m in localChanges:
-  remoteUA = remoteUpdatedMap.get(m.id)
-  if remoteUA && new Date(remoteUA) >= new Date(m.updatedAt):
-    continue                    // remote won merge → niet terugpushen (Bug 3 fix)
-
-  if m.deletedAt:
-    DELETE /api/v1/measurements/:id
-    if success:
-      removeMeasurement(m.id)   // Bug 4 fix: alleen hard-delete bij API-succes
-  else:
-    POST /api/v1/measurements
-
-SecureStore.setItem(LAST_SYNC_KEY, now())
-```
-
-## Delete Protocol (vastgelegd)
-
-```
-Lokaal:  setDeletedAt(id) + updatedAt = now()   (Bug 2 fix)
-Cache:   removeFromCache(id)
-API:     DELETE /api/v1/measurements/:id
-if success:
-  Lokaal: removeMeasurement(id)                  (Bug 4 fix: alleen bij succes)
-// bij falen: blijft met deletedAt in DB → syncAll pakt op
-```
-
-## Files om te wijzigen
-
-### 1. `src/sync/syncService.ts` — REWRITE syncAll + mergeMeasurements
-
-**Wijzigingen:**
- `mergeMeasurements`: detecteer `(r as any).deleted` → zet `deletedAt = r.updatedAt`
- `syncAll`:
-  - Track `remoteUpdatedMap` in pull-fase
-  - Merge via bestaande `mergeMeasurements`
-  - Push: skip records waar remote.updatedAt ≥ local.updatedAt (remote won)
-  - Alleen `removeMeasurement` na succesvolle API DELETE
- Exporteer `cleanupDeletedRecord(id)` voor gebruik door screens (DRY)
-
-### 2. `src/database/db.ts` — setDeletedAt fix + query filters
-
-**Wijzigingen:**
- `setDeletedAt(id)`: voeg `updatedAt = ?` toe aan SQL
- `getAllMeasurements()`: voeg `WHERE deletedAt IS NULL` toe
- `getLatestMeasurement()`: voeg `WHERE deletedAt IS NULL` toe
- Nieuw: `getAllMeasurementsForSync()` — ongefilterd (voor syncService)
- Verwijder: `deleteMeasurement()` (dode code, duplicate van `removeMeasurement`)
-
-### 3. `src/screens/HistoryScreen.tsx` — delete fix
-
-**Wijzigingen:**
- `confirmDelete`: alleen `removeMeasurement()` na API-succes
- `load`: gebruik `getMeasurementsSince('1970-01-01')` i.p.v. `getAllMeasurements()` (of de nieuwe `getAllMeasurements` die filtert)
-
-### 4. `src/screens/MeasurementDetailScreen.tsx` — delete fix
-
-**Wijzigingen:**
- `handleDelete`: alleen `removeMeasurement()` na API-succes
-
-### 5. `src/store/measurementStore.ts` — geen wijzigingen nodig
-
-De store gebruikt `getLatestMeasurements(count)` en `getMeasurementsSince(date)` die al filteren. `/loadFromDb` gebruikt `getAllMeasurements()` → die gaat nu ook filteren. ✓
-
-### 6. `tests/syncService.test.ts` — nieuwe test cases
-
-**Wijzigingen:**
- Test: `deleted` van server wordt correct naar `deletedAt` gemapt
- Test: syncAll push skips remote-won records
- Test: syncAll push stuurt local-won records wel
-
-### 7. `tests/database.test.ts` — update voor nieuwe functies
-
-**Wijzigingen:**
- Test `setDeletedAt` update ook `updatedAt`
- Test `getAllMeasurementsForSync` returned deleted records
-
-## Uitvoeringsvolgorde
-
-1. `db.ts` — setDeletedAt fix + query filters
-2. `syncService.ts` — merge fix + syncAll refactor
-3. `HistoryScreen.tsx` + `MeasurementDetailScreen.tsx` — delete fix
-4. Tests updaten + TypeScript check + `npm test`
-5. Build APK, testen
--- a/docs/superpowers/specs/2026-07-20-rest-api-sync-design.md
+++ b/docs/superpowers/specs/2026-07-20-rest-api-sync-design.md
@ -1,266 +0,0 @@
-# REST API Sync — Design Doc
-
-Vervang WebDAV-sync door een eigen REST API op `weegschaal.eddydevink.nl`,
-met MariaDB-backend en Bearer token-authenticatie. Incrementele sync i.p.v. volledig bestand.
-
-## Fase 1 — Server-side: PHP API
-
-### Infrastructuur
-
- **DNS**: `weegschaal.eddydevink.nl` → zelfde server als `git.eddydevink.nl` (nextcloud)
- **nginx**: server block in `/etc/nginx/conf.d/weegschaal-api.conf`, proxy naar PHP-FPM socket
- **SSL**: `certbot --nginx -d weegschaal.eddydevink.nl`
- **Document root**: `/usr/share/nginx/html/weegschaal-api/`
-
-### MariaDB
-
-Database `weegschaal` met gebruiker `weegschaal@localhost` (random wachtwoord).
-
-```sql
-CREATE TABLE users (
-  id INT AUTO_INCREMENT PRIMARY KEY,
-  name VARCHAR(255) NOT NULL,
-  created_at DATETIME DEFAULT CURRENT_TIMESTAMP
-);
-
-CREATE TABLE auth_tokens (
-  id INT AUTO_INCREMENT PRIMARY KEY,
-  user_id INT NOT NULL REFERENCES users(id),
-  token VARCHAR(64) NOT NULL UNIQUE,
-  description VARCHAR(255),
-  created_at DATETIME DEFAULT CURRENT_TIMESTAMP
-);
-
-CREATE TABLE measurements (
-  id VARCHAR(36) NOT NULL,
-  user_id INT NOT NULL,
-  weight DECIMAL(5,2) NOT NULL,
-  bmi DECIMAL(4,1) NOT NULL,
-  body_fat_percentage DECIMAL(4,1) NOT NULL,
-  fat_mass DECIMAL(5,2) NOT NULL,
-  muscle_percentage DECIMAL(4,1) NOT NULL,
-  muscle_mass DECIMAL(5,2) NOT NULL,
-  visceral_fat TINYINT NOT NULL,
-  bmr DECIMAL(6,1) NOT NULL,
-  measured_at DATE NOT NULL,
-  created_at DATETIME NOT NULL,
-  updated_at DATETIME NOT NULL,
-  deleted TINYINT NOT NULL DEFAULT 0,
-  PRIMARY KEY (user_id, id),
-  INDEX idx_updated_at (user_id, updated_at)
-);
-```
-
-`deleted` flag voor soft deletes op server. De client stuurt harde DELETEs;
-de server zet `deleted=1` en update `updated_at` zodat de volgende `?since=`
-query deze doorgeeft zodat andere clients de delete kunnen verwerken.
-
-### Endpoints (Slim Framework)
-
-| Methode | Pad | Beschrijving |
-|---------|-----|-------------|
-| `GET` | `/api/v1/measurements` | Alle metingen (`?since=ISO` voor delta) |
-| `POST` | `/api/v1/measurements` | Nieuwe meting of upsert op ID |
-| `DELETE` | `/api/v1/measurements/:id` | Meting verwijderen (soft delete) |
-
-**Geen** auth endpoints — eerste token wordt handmatig via SQL INSERT aangemaakt.
-
-### Auth middleware
-
- `Authorization: Bearer <token>` → valideert tegen `auth_tokens` tabel
- Zet `user_id` in request context
- 401 bij ongeldige/missing token
-
-### Bestandsstructuur
-
-```
-/usr/share/nginx/html/weegschaal-api/
-├── composer.json
-├── public/
-│   └── index.php              ← Entry point, routing
-├── src/
-│   ├── Database.php           ← PDO singleton
-│   ├── Auth.php               ← Token validation middleware
-│   ├── Measurements.php       ← CRUD + sync queries
-│   └── helpers.php
-└── config.php                 ← DB credentials
-```
-
-### Sync-logica server
-
- `GET ?since=ISO` → `WHERE user_id = ? AND updated_at > ? ORDER BY updated_at ASC`
- `POST` → `INSERT ... ON DUPLICATE KEY UPDATE` — upsert op client-ID
- `DELETE` → set `deleted=1`, update `updated_at=NOW()` (soft delete, zodat delta-sync werkt voor andere clients)
- Geretourneerde records bevatten `deleted: true` veld zodat de client weet dat dit een soft-deleted record is
-
---
-
-## Fase 2 — Client-side: App aanpassen
-
-### Types (`src/types.ts`)
-
-`WebDAVConfig` en `SyncStatus` vervallen. Toegevoegd: `ApiConfig`, `deletedAt`:
-
-```typescript
-export type Measurement = {
-  id: string
-  weight: number
-  bmi: number
-  bodyFatPercentage: number
-  fatMass: number
-  musclePercentage: number
-  muscleMass: number
-  visceralFat: number
-  bmr: number
-  measuredAt: string
-  createdAt: string
-  updatedAt: string
-  deletedAt?: string
-}
-
-export type ApiConfig = {
-  url: string
-  token: string
-}
-```
-
-### SettingsScreen (`src/screens/SettingsScreen.tsx`)
-
- Vervang URL/username/password door API-URL + token (met oogje)
- SecureStore key: `weegschaal_api_config`
- `getApiConfig()` (exported) i.p.v. `getWebDAVConfig()`
- Sync knop blijft
-
-### Nieuwe module `src/sync/api.ts`
-
-```typescript
-const createApi = (config: ApiConfig) => ({
-  getMeasurements: (since?: string) => GET /api/v1/measurements?since=...
-  createMeasurement: (m: Measurement) => POST /api/v1/measurements
-  deleteMeasurement: (id: string) => DELETE /api/v1/measurements/:id
-})
-```
-
-Alle calls met `Authorization: Bearer <token>` header.
-
-### syncService.ts — volledig herschreven
-
-#### `mergeMeasurements(local, remote)`
-
-Simpele last-writer-wins op `updatedAt`:
-
-1. Bouw map van alle IDs (lokaal + remote)
-2. Voor elke ID: als beide bestaan → behoud de met de hoogste `updatedAt`
-3. Remote metingen die winnen krijgen `deletedAt` overgenomen uit server indien de server record `deleted: true` had
-
-#### `syncAll()`
-
-1. Lees `lastSyncAt` uit SecureStore (`weegschaal_last_sync`)
-2. `GET /api/v1/measurements?since=lastSyncAt` → remote delta
-3. `getAllMeasurements()` → lokale metingen
-4. Merge remote delta in lokale DB (last-writer-wins)
-5. Verwijder lokale records waar remote `deleted: true` en remote `updatedAt > local updatedAt`
-6. Verzamel lokale metingen met `updatedAt > lastSyncAt` (alleen niet-verwijderde)
-7. Voor `deletedAt` metingen met `deletedAt > lastSyncAt` → DELETE naar API → bij succes lokaal verwijderen
-8. Voor overige metingen met `updatedAt > lastSyncAt` → POST naar API
-9. `lastSyncAt = now()`
-
-#### `uploadMeasurement(m)`
-
-Losstaande functie voor directe push na opslaan:
-
-1. POST naar API
-2. Bij succes → return
-3. Bij netwerkfout → throw; meting blijft lokaal, `syncAll` pakt hem later op (want `updatedAt > lastSyncAt`)
-
-### NewMeasurementScreen
-
-1. Lokaal opslaan (insert of upsert, met `updatedAt = now()`)
-2. Direct `uploadMeasurement(m)` proberen
-3. Bij succes → navigeer terug met "Opgeslagen & gesynct"
-4. Bij falen → navigeer terug met "Opgeslagen (sync mislukt)"
-
-### MeasurementDetailScreen
-
-Bij delete:
-1. Zet `deletedAt = now()` lokaal
-2. Fire-and-forget: DELETE API call
-3. Bij succes → record lokaal verwijderen
-4. Bij falen → record blijft met `deletedAt`, syncAll pakt het op
-
-### HistoryScreen
-
-Bij delete (vanuit alert in HistoryScreen):
-1. Zet `deletedAt = now()` lokaal
-2. Fire-and-forget: DELETE API call
-3. Bij succes → record lokaal verwijderen
-4. Bij falen → record blijft met `deletedAt`
-
-Filter bij laden: `!m.deletedAt`.
-
-### DashboardScreen
-
-Laatste meting en grafiek: alleen metingen zonder `deletedAt`.
-Laatste meting = meest recente `measuredAt` zonder `deletedAt`.
-
-### Database (`db.ts`)
-
-Nieuw kolom in schema: `deletedAt TEXT`.
-
-Nieuwe functies:
- `getMeasurementsUpdatedSince(since: string)` — metingen met `updatedAt > since`
- `setDeletedAt(id: string)` — zet `deletedAt = now()`
- `removeMeasurement(id: string)` — harde delete
-
-Verwijderd/onbruikbaar:
- `getUnsyncedMeasurements()` — niet meer nodig
- `getPendingMeasurements()` — niet meer nodig
- `markAsDeleted()` — vervangen door `setDeletedAt`
- `syncStatus` kolom — blijft in DB maar wordt niet meer gebruikt in code
-
---
-
-## Fase 3 — Migratie (eerste sync)
-
-Eerste keer dat de app de nieuwe API gebruikt (`lastSyncAt` is `null`):
- `GET /api/v1/measurements` (zonder `?since`) → alle remote metingen
- Merge met lokale DB: last-writer-wins, remote deleted overschrijft lokaal
- Alle lokale metingen (die niet deleted zijn) worden gepusht (`updatedAt > null` = alles)
- `lastSyncAt = now()`
- Vanaf dan: delta-sync
-
---
-
-## Foutafhandeling
-
-| Situatie | Gedrag |
-|----------|--------|
-| Geen netwerk bij opslaan | Lokaal opgeslagen, `updatedAt > lastSyncAt` dus next sync pakt op |
-| Geen netwerk bij sync | Throw error, scherm toont melding |
-| Geen API-config | Throw `'Geen API configuratie. Stel deze eerst in in Instellingen.'` |
-| HTTP 401 (ongeldige token) | Throw `'Authenticatie mislukt. Controleer je token in Instellingen.'` |
-| HTTP 5xx | Throw met statuscode, scherm toont melding |
-
---
-
-## Testen
-
-### Client-side (Jest)
-
- `mergeMeasurements()` unit tests: local wins, remote wins, deleted remote vs local
- `api.ts` calls mocken met fetch-mock
- `syncAll()` integratietest met gemockte API
-
-### Server-side
-
- Handmatig testen met curl na deployment
-
---
-
-## Implementatievolgorde
-
-1. Server-side: nginx, MariaDB, PHP API → testen met curl
-2. Client-side: types, api.ts, db.ts, syncService.ts, SettingsScreen → testen
-3. Client-side: DashboardScreen, HistoryScreen, MeasurementDetailScreen, NewMeasurementScreen
-4. Client-side: unit tests
-5. Build APK, sideloaden, testen op telefoon
--- a/eas.json
+++ b/eas.json
@ -1,7 +1,6 @@
 {
  "cli": {
-    "version": ">= 5.9.1",
-    "appVersionSource": "local"
+    "version": ">= 5.9.1"
  },
  "build": {
    "development": {
--- a/package-lock.json
+++ b/package-lock.json
@ -13,19 +13,14 @@
        "@react-navigation/native-stack": "^7.17.6",
        "expo": "~54.0.0",
        "expo-secure-store": "~15.0.8",
-        "expo-sharing": "~14.0.8",
        "expo-sqlite": "~16.0.10",
        "expo-status-bar": "~3.0.9",
-        "expo-updates": "~29.0.18",
        "react": "19.1.0",
-        "react-dom": "19.1.0",
        "react-native": "0.81.5",
        "react-native-chart-kit": "^7.0.1",
        "react-native-safe-area-context": "~5.6.0",
        "react-native-screens": "~4.16.0",
-        "react-native-svg": "15.12.1",
-        "react-native-view-shot": "4.0.3",
-        "react-native-web": "^0.21.0"
+        "react-native-svg": "15.12.1"
      },
      "devDependencies": {
        "@types/jest": "29.5.14",
@ -1739,6 +1734,25 @@
        "semver": "^7.6.0"
      }
    },
+    "node_modules/@expo/image-utils/node_modules/@expo/require-utils": {
+      "version": "55.0.5",
+      "resolved": "https://registry.npmjs.org/@expo/require-utils/-/require-utils-55.0.5.tgz",
+      "integrity": "sha512-U4K/CQ2VpXuwfNGsN+daKmYOt15hCP8v/pXaYH6eut7kdYZo6SfJ1yr67BIcJ+1Gzzs+QzTxswAZChKpXmceyw==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/code-frame": "^7.20.0",
+        "@babel/core": "^7.25.2",
+        "@babel/plugin-transform-modules-commonjs": "^7.24.8"
+      },
+      "peerDependencies": {
+        "typescript": "^5.0.0 || ^5.0.0-0"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
    "node_modules/@expo/json-file": {
      "version": "10.2.0",
      "resolved": "https://registry.npmjs.org/@expo/json-file/-/json-file-10.2.0.tgz",
@ -2147,25 +2161,6 @@
        "xmlbuilder": "^15.1.1"
      }
    },
-    "node_modules/@expo/require-utils": {
-      "version": "55.0.5",
-      "resolved": "https://registry.npmjs.org/@expo/require-utils/-/require-utils-55.0.5.tgz",
-      "integrity": "sha512-U4K/CQ2VpXuwfNGsN+daKmYOt15hCP8v/pXaYH6eut7kdYZo6SfJ1yr67BIcJ+1Gzzs+QzTxswAZChKpXmceyw==",
-      "license": "MIT",
-      "dependencies": {
-        "@babel/code-frame": "^7.20.0",
-        "@babel/core": "^7.25.2",
-        "@babel/plugin-transform-modules-commonjs": "^7.24.8"
-      },
-      "peerDependencies": {
-        "typescript": "^5.0.0 || ^5.0.0-0"
-      },
-      "peerDependenciesMeta": {
-        "typescript": {
-          "optional": true
-        }
-      }
-    },
    "node_modules/@expo/schema-utils": {
      "version": "0.1.8",
      "resolved": "https://registry.npmjs.org/@expo/schema-utils/-/schema-utils-0.1.8.tgz",
@ -3730,15 +3725,6 @@
        "node": "18 || 20 || >=22"
      }
    },
-    "node_modules/base64-arraybuffer": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-1.0.2.tgz",
-      "integrity": "sha512-I3yl4r9QB5ZRY3XuJVEPfc2XhZO6YweFPI+UovAzn+8/hb3oJ6lnysaFcjVpkCPfVWFUDvoZ8kmVDP7WyRtYtQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.6.0"
-      }
-    },
    "node_modules/base64-js": {
      "version": "1.5.1",
      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
@ -4340,57 +4326,6 @@
        "node": "^14.15.0 || ^16.10.0 || >=18.0.0"
      }
    },
-    "node_modules/cross-fetch": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/cross-fetch/-/cross-fetch-3.2.0.tgz",
-      "integrity": "sha512-Q+xVJLoGOeIMXZmbUK4HYk+69cQH6LudR0Vu/pRm2YlU/hDV9CiS0gKUMaWY5f2NeUH9C1nV3bsTlCo0FsTV1Q==",
-      "license": "MIT",
-      "dependencies": {
-        "node-fetch": "^2.7.0"
-      }
-    },
-    "node_modules/cross-fetch/node_modules/node-fetch": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
-      "integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
-      "license": "MIT",
-      "dependencies": {
-        "whatwg-url": "^5.0.0"
-      },
-      "engines": {
-        "node": "4.x || >=6.0.0"
-      },
-      "peerDependencies": {
-        "encoding": "^0.1.0"
-      },
-      "peerDependenciesMeta": {
-        "encoding": {
-          "optional": true
-        }
-      }
-    },
-    "node_modules/cross-fetch/node_modules/tr46": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
-      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==",
-      "license": "MIT"
-    },
-    "node_modules/cross-fetch/node_modules/webidl-conversions": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
-      "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
-      "license": "BSD-2-Clause"
-    },
-    "node_modules/cross-fetch/node_modules/whatwg-url": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
-      "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
-      "license": "MIT",
-      "dependencies": {
-        "tr46": "~0.0.3",
-        "webidl-conversions": "^3.0.0"
-      }
-    },
    "node_modules/cross-spawn": {
      "version": "7.0.6",
      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@ -4405,24 +4340,6 @@
        "node": ">= 8"
      }
    },
-    "node_modules/css-in-js-utils": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/css-in-js-utils/-/css-in-js-utils-3.1.0.tgz",
-      "integrity": "sha512-fJAcud6B3rRu+KHYk+Bwf+WFL2MDCJJ1XG9x137tJQ0xYxor7XziQtuGFbWNdqrvF4Tk26O3H73nfVqXt/fW1A==",
-      "license": "MIT",
-      "dependencies": {
-        "hyphenate-style-name": "^1.0.3"
-      }
-    },
-    "node_modules/css-line-break": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/css-line-break/-/css-line-break-2.1.0.tgz",
-      "integrity": "sha512-FHcKFCZcAha3LwfVBhCQbW2nCNbkZXn7KVUJcsT5/P8YmfsVja0FMPJr0B903j/E69HUphKiV9iQArX8SDYA4w==",
-      "license": "MIT",
-      "dependencies": {
-        "utrie": "^1.0.2"
-      }
-    },
    "node_modules/css-select": {
      "version": "5.2.2",
      "resolved": "https://registry.npmjs.org/css-select/-/css-select-5.2.2.tgz",
@ -5160,31 +5077,6 @@
        }
      }
    },
-    "node_modules/expo-eas-client": {
-      "version": "1.0.8",
-      "resolved": "https://registry.npmjs.org/expo-eas-client/-/expo-eas-client-1.0.8.tgz",
-      "integrity": "sha512-5or11NJhSeDoHHI6zyvQDW2cz/yFyE+1Cz8NTs5NK8JzC7J0JrkUgptWtxyfB6Xs/21YRNifd3qgbBN3hfKVgA==",
-      "license": "MIT"
-    },
-    "node_modules/expo-json-utils": {
-      "version": "0.15.0",
-      "resolved": "https://registry.npmjs.org/expo-json-utils/-/expo-json-utils-0.15.0.tgz",
-      "integrity": "sha512-duRT6oGl80IDzH2LD2yEFWNwGIC2WkozsB6HF3cDYNoNNdUvFk6uN3YiwsTsqVM/D0z6LEAQ01/SlYvN+Fw0JQ==",
-      "license": "MIT"
-    },
-    "node_modules/expo-manifests": {
-      "version": "1.0.11",
-      "resolved": "https://registry.npmjs.org/expo-manifests/-/expo-manifests-1.0.11.tgz",
-      "integrity": "sha512-6zItytTewN37Cjhp3glUg0ozrgW2GwB8x9wtfzUNoJIMmxO38nnGdTLMaotYhRqdf5PP2Dzdmej1HDHXVNUpRw==",
-      "license": "MIT",
-      "dependencies": {
-        "@expo/config": "~12.0.13",
-        "expo-json-utils": "~0.15.0"
-      },
-      "peerDependencies": {
-        "expo": "*"
-      }
-    },
    "node_modules/expo-modules-autolinking": {
      "version": "3.0.26",
      "resolved": "https://registry.npmjs.org/expo-modules-autolinking/-/expo-modules-autolinking-3.0.26.tgz",
@ -5232,15 +5124,6 @@
        "node": ">=20.16.0"
      }
    },
-    "node_modules/expo-sharing": {
-      "version": "14.0.8",
-      "resolved": "https://registry.npmjs.org/expo-sharing/-/expo-sharing-14.0.8.tgz",
-      "integrity": "sha512-A1pPr2iBrxypFDCWVAESk532HK+db7MFXbvO2sCV9ienaFXAk7lIBm6bkqgE6vzRd9O3RGdEGzYx80cYlc089Q==",
-      "license": "MIT",
-      "peerDependencies": {
-        "expo": "*"
-      }
-    },
    "node_modules/expo-sqlite": {
      "version": "16.0.10",
      "resolved": "https://registry.npmjs.org/expo-sqlite/-/expo-sqlite-16.0.10.tgz",
@ -5268,57 +5151,6 @@
        "react-native": "*"
      }
    },
-    "node_modules/expo-structured-headers": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/expo-structured-headers/-/expo-structured-headers-5.0.0.tgz",
-      "integrity": "sha512-RmrBtnSphk5REmZGV+lcdgdpxyzio5rJw8CXviHE6qH5pKQQ83fhMEcigvrkBdsn2Efw2EODp4Yxl1/fqMvOZw==",
-      "license": "MIT"
-    },
-    "node_modules/expo-updates": {
-      "version": "29.0.18",
-      "resolved": "https://registry.npmjs.org/expo-updates/-/expo-updates-29.0.18.tgz",
-      "integrity": "sha512-qn0YDM7wVwghQAaxb9NYzzwrmj+v8Djz5H+Zft4/myG9SPg4ICAfDy52IVF0K+/GH/oNgsFfzmmLl6hIkDu42g==",
-      "license": "MIT",
-      "dependencies": {
-        "@expo/code-signing-certificates": "^0.0.6",
-        "@expo/plist": "^0.4.9",
-        "@expo/spawn-async": "^1.7.2",
-        "arg": "4.1.0",
-        "chalk": "^4.1.2",
-        "debug": "^4.3.4",
-        "expo-eas-client": "~1.0.8",
-        "expo-manifests": "~1.0.11",
-        "expo-structured-headers": "~5.0.0",
-        "expo-updates-interface": "~2.0.0",
-        "getenv": "^2.0.0",
-        "glob": "^13.0.0",
-        "ignore": "^5.3.1",
-        "resolve-from": "^5.0.0"
-      },
-      "bin": {
-        "expo-updates": "bin/cli.js"
-      },
-      "peerDependencies": {
-        "expo": "*",
-        "react": "*",
-        "react-native": "*"
-      }
-    },
-    "node_modules/expo-updates-interface": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/expo-updates-interface/-/expo-updates-interface-2.0.0.tgz",
-      "integrity": "sha512-pTzAIufEZdVPKql6iMi5ylVSPqV1qbEopz9G6TSECQmnNde2nwq42PxdFBaUEd8IZJ/fdJLQnOT3m6+XJ5s7jg==",
-      "license": "MIT",
-      "peerDependencies": {
-        "expo": "*"
-      }
-    },
-    "node_modules/expo-updates/node_modules/arg": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.0.tgz",
-      "integrity": "sha512-ZWc51jO3qegGkVh8Hwpv636EkbesNV5ZNQPCtRa+0qytRYPEs9IYT9qITY9buezqUH5uqyzlWLcufrzU2rffdg==",
-      "license": "MIT"
-    },
    "node_modules/expo/node_modules/@expo/cli": {
      "version": "54.0.25",
      "resolved": "https://registry.npmjs.org/@expo/cli/-/cli-54.0.25.tgz",
@ -5748,36 +5580,6 @@
        "bser": "2.1.1"
      }
    },
-    "node_modules/fbjs": {
-      "version": "3.0.5",
-      "resolved": "https://registry.npmjs.org/fbjs/-/fbjs-3.0.5.tgz",
-      "integrity": "sha512-ztsSx77JBtkuMrEypfhgc3cI0+0h+svqeie7xHbh1k/IKdcydnvadp/mUaGgjAOXQmQSxsqgaRhS3q9fy+1kxg==",
-      "license": "MIT",
-      "dependencies": {
-        "cross-fetch": "^3.1.5",
-        "fbjs-css-vars": "^1.0.0",
-        "loose-envify": "^1.0.0",
-        "object-assign": "^4.1.0",
-        "promise": "^7.1.1",
-        "setimmediate": "^1.0.5",
-        "ua-parser-js": "^1.0.35"
-      }
-    },
-    "node_modules/fbjs-css-vars": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/fbjs-css-vars/-/fbjs-css-vars-1.0.2.tgz",
-      "integrity": "sha512-b2XGFAFdWZWg0phtAWLHCk836A1Xann+I+Dgd3Gk64MHKZO44FfoD1KxyvbSh0qZsIoXQGGlVztIY+oitJPpRQ==",
-      "license": "MIT"
-    },
-    "node_modules/fbjs/node_modules/promise": {
-      "version": "7.3.1",
-      "resolved": "https://registry.npmjs.org/promise/-/promise-7.3.1.tgz",
-      "integrity": "sha512-nolQXZ/4L+bP/UGlkfaIujX9BKxGwmQ9OT4mOt5yvy8iK1h3wqTEJCijzGANTCCl9nWjY41juyAn2K3Q1hLLTg==",
-      "license": "MIT",
-      "dependencies": {
-        "asap": "~2.0.3"
-      }
-    },
    "node_modules/fill-range": {
      "version": "7.1.1",
      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
@ -6173,19 +5975,6 @@
      "license": "MIT",
      "peer": true
    },
-    "node_modules/html2canvas": {
-      "version": "1.4.1",
-      "resolved": "https://registry.npmjs.org/html2canvas/-/html2canvas-1.4.1.tgz",
-      "integrity": "sha512-fPU6BHNpsyIhr8yyMpTLLxAbkaK8ArIBcmZIRiBLiDhjeqvXolaEmDGmELFuX9I4xDcaKKcJl+TKZLqruBbmWA==",
-      "license": "MIT",
-      "dependencies": {
-        "css-line-break": "^2.1.0",
-        "text-segmentation": "^1.0.3"
-      },
-      "engines": {
-        "node": ">=8.0.0"
-      }
-    },
    "node_modules/http-errors": {
      "version": "2.0.1",
      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-2.0.1.tgz",
@ -6267,12 +6056,6 @@
        "node": ">=10.17.0"
      }
    },
-    "node_modules/hyphenate-style-name": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/hyphenate-style-name/-/hyphenate-style-name-1.1.0.tgz",
-      "integrity": "sha512-WDC/ui2VVRrz3jOVi+XtjqkDjiVjTtFaAGiW37k6b+ohyQ5wYDOGkvCZa8+H0nx3gyvv0+BST9xuOgIyGQ00gw==",
-      "license": "BSD-3-Clause"
-    },
    "node_modules/iconv-lite": {
      "version": "0.6.3",
      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
@ -6383,15 +6166,6 @@
      "integrity": "sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==",
      "license": "ISC"
    },
-    "node_modules/inline-style-prefixer": {
-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/inline-style-prefixer/-/inline-style-prefixer-7.0.1.tgz",
-      "integrity": "sha512-lhYo5qNTQp3EvSSp3sRvXMbVQTLrvGV6DycRMJ5dm2BLMiJ30wpXKdDdgX+GmJZ5uQMucwRKHamXSst3Sj/Giw==",
-      "license": "MIT",
-      "dependencies": {
-        "css-in-js-utils": "^3.1.0"
-      }
-    },
    "node_modules/invariant": {
      "version": "2.2.4",
      "resolved": "https://registry.npmjs.org/invariant/-/invariant-2.2.4.tgz",
@ -9277,12 +9051,6 @@
        "node": "^10 || ^12 || >=14"
      }
    },
-    "node_modules/postcss-value-parser": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz",
-      "integrity": "sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==",
-      "license": "MIT"
-    },
    "node_modules/pretty-bytes": {
      "version": "5.6.0",
      "resolved": "https://registry.npmjs.org/pretty-bytes/-/pretty-bytes-5.6.0.tgz",
@ -9495,18 +9263,6 @@
        "ws": "^7"
      }
    },
-    "node_modules/react-dom": {
-      "version": "19.1.0",
-      "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-19.1.0.tgz",
-      "integrity": "sha512-Xs1hdnE+DyKgeHJeJznQmYMIBG3TKIHJJT95Q58nHLSrElKlGQqDTR2HQ9fx5CN/Gk6Vh/kupBTDLU11/nDk/g==",
-      "license": "MIT",
-      "dependencies": {
-        "scheduler": "^0.26.0"
-      },
-      "peerDependencies": {
-        "react": "^19.1.0"
-      }
-    },
    "node_modules/react-freeze": {
      "version": "1.0.4",
      "resolved": "https://registry.npmjs.org/react-freeze/-/react-freeze-1.0.4.tgz",
@ -9653,51 +9409,6 @@
        "react-native": "*"
      }
    },
-    "node_modules/react-native-view-shot": {
-      "version": "4.0.3",
-      "resolved": "https://registry.npmjs.org/react-native-view-shot/-/react-native-view-shot-4.0.3.tgz",
-      "integrity": "sha512-USNjYmED7C0me02c1DxKA0074Hw+y/nxo+xJKlffMvfUWWzL5ELh/TJA/pTnVqFurIrzthZDPtDM7aBFJuhrHQ==",
-      "license": "MIT",
-      "dependencies": {
-        "html2canvas": "^1.4.1"
-      },
-      "peerDependencies": {
-        "react": "*",
-        "react-native": "*"
-      }
-    },
-    "node_modules/react-native-web": {
-      "version": "0.21.2",
-      "resolved": "https://registry.npmjs.org/react-native-web/-/react-native-web-0.21.2.tgz",
-      "integrity": "sha512-SO2t9/17zM4iEnFvlu2DA9jqNbzNhoUP+AItkoCOyFmDMOhUnBBznBDCYN92fGdfAkfQlWzPoez6+zLxFNsZEg==",
-      "license": "MIT",
-      "dependencies": {
-        "@babel/runtime": "^7.18.6",
-        "@react-native/normalize-colors": "^0.74.1",
-        "fbjs": "^3.0.4",
-        "inline-style-prefixer": "^7.0.1",
-        "memoize-one": "^6.0.0",
-        "nullthrows": "^1.1.1",
-        "postcss-value-parser": "^4.2.0",
-        "styleq": "^0.1.3"
-      },
-      "peerDependencies": {
-        "react": "^18.0.0 || ^19.0.0",
-        "react-dom": "^18.0.0 || ^19.0.0"
-      }
-    },
-    "node_modules/react-native-web/node_modules/@react-native/normalize-colors": {
-      "version": "0.74.89",
-      "resolved": "https://registry.npmjs.org/@react-native/normalize-colors/-/normalize-colors-0.74.89.tgz",
-      "integrity": "sha512-qoMMXddVKVhZ8PA1AbUCk83trpd6N+1nF2A6k1i6LsQObyS92fELuk8kU/lQs6M7BsMHwqyLCpQJ1uFgNvIQXg==",
-      "license": "MIT"
-    },
-    "node_modules/react-native-web/node_modules/memoize-one": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/memoize-one/-/memoize-one-6.0.0.tgz",
-      "integrity": "sha512-rkpe71W0N0c0Xz6QD0eJETuWAJGnJ9afsl1srmwPrI+yBCkge5EycXXbYRyvL29zZVUWQCY7InPRCv3GDXuZNw==",
-      "license": "MIT"
-    },
    "node_modules/react-native/node_modules/@react-native/js-polyfills": {
      "version": "0.81.5",
      "resolved": "https://registry.npmjs.org/@react-native/js-polyfills/-/js-polyfills-0.81.5.tgz",
@ -10246,12 +9957,6 @@
      "dev": true,
      "license": "MIT"
    },
-    "node_modules/setimmediate": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
-      "integrity": "sha512-MATJdZp8sLqDl/68LfQmbP8zKPLQNV6BIZoIgrscFDQ+RsvK/BxeDQOgyxKKoh0y/8h3BqVFnCqQ/gd+reiIXA==",
-      "license": "MIT"
-    },
    "node_modules/setprototypeof": {
      "version": "1.2.0",
      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
@ -10599,12 +10304,6 @@
      "integrity": "sha512-0MP/Cxx5SzeeZ10p/bZI0S6MpgD+yxAhi1BOQ34jgnMXsCq3j1t6tQnZu+KdlL7dvJTLT3g9xN8tl10TqgFMcg==",
      "license": "MIT"
    },
-    "node_modules/styleq": {
-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/styleq/-/styleq-0.1.3.tgz",
-      "integrity": "sha512-3ZUifmCDCQanjeej1f6kyl/BeP/Vae5EYkQ9iJfUm/QwZvlgnZzyflqAsAWYURdtea8Vkvswu2GrC57h3qffcA==",
-      "license": "MIT"
-    },
    "node_modules/sucrase": {
      "version": "3.35.1",
      "resolved": "https://registry.npmjs.org/sucrase/-/sucrase-3.35.1.tgz",
@ -10808,15 +10507,6 @@
        "node": "*"
      }
    },
-    "node_modules/text-segmentation": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/text-segmentation/-/text-segmentation-1.0.3.tgz",
-      "integrity": "sha512-iOiPUo/BGnZ6+54OsWxZidGCsdU8YbE4PSpdPinp7DeMtUJNJBoJ/ouUSTJjHkh1KntHaltHl/gDs2FC4i5+Nw==",
-      "license": "MIT",
-      "dependencies": {
-        "utrie": "^1.0.2"
-      }
-    },
    "node_modules/thenify": {
      "version": "3.3.1",
      "resolved": "https://registry.npmjs.org/thenify/-/thenify-3.3.1.tgz",
@ -10983,32 +10673,6 @@
        "node": ">=14.17"
      }
    },
-    "node_modules/ua-parser-js": {
-      "version": "1.0.41",
-      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-1.0.41.tgz",
-      "integrity": "sha512-LbBDqdIC5s8iROCUjMbW1f5dJQTEFB1+KO9ogbvlb3nm9n4YHa5p4KTvFPWvh2Hs8gZMBuiB1/8+pdfe/tDPug==",
-      "funding": [
-        {
-          "type": "opencollective",
-          "url": "https://opencollective.com/ua-parser-js"
-        },
-        {
-          "type": "paypal",
-          "url": "https://paypal.me/faisalman"
-        },
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/faisalman"
-        }
-      ],
-      "license": "MIT",
-      "bin": {
-        "ua-parser-js": "script/cli.js"
-      },
-      "engines": {
-        "node": "*"
-      }
-    },
    "node_modules/undici": {
      "version": "6.27.0",
      "resolved": "https://registry.npmjs.org/undici/-/undici-6.27.0.tgz",
@ -11151,15 +10815,6 @@
        "node": ">= 0.4.0"
      }
    },
-    "node_modules/utrie": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/utrie/-/utrie-1.0.2.tgz",
-      "integrity": "sha512-1MLa5ouZiOmQzUbjbu9VmjLzn1QLXBhwpUa7kdLUQK+KQ5KA9I1vk5U4YHe/X2Ch7PYnJfWuWT+VbuxbGwljhw==",
-      "license": "MIT",
-      "dependencies": {
-        "base64-arraybuffer": "^1.0.2"
-      }
-    },
    "node_modules/uuid": {
      "version": "7.0.3",
      "resolved": "https://registry.npmjs.org/uuid/-/uuid-7.0.3.tgz",
--- a/package.json
+++ b/package.json
@ -8,19 +8,14 @@
    "@react-navigation/native-stack": "^7.17.6",
    "expo": "~54.0.0",
    "expo-secure-store": "~15.0.8",
-    "expo-sharing": "~14.0.8",
    "expo-sqlite": "~16.0.10",
    "expo-status-bar": "~3.0.9",
-    "expo-updates": "~29.0.18",
    "react": "19.1.0",
-    "react-dom": "19.1.0",
    "react-native": "0.81.5",
    "react-native-chart-kit": "^7.0.1",
    "react-native-safe-area-context": "~5.6.0",
    "react-native-screens": "~4.16.0",
-    "react-native-svg": "15.12.1",
-    "react-native-view-shot": "4.0.3",
-    "react-native-web": "^0.21.0"
+    "react-native-svg": "15.12.1"
  },
  "devDependencies": {
    "@types/jest": "29.5.14",
@ -30,8 +25,8 @@
  },
  "scripts": {
    "start": "expo start",
-    "android": "expo run:android",
-    "ios": "expo run:ios",
+    "android": "expo start --android",
+    "ios": "expo start --ios",
    "web": "expo start --web",
    "test": "jest"
  },
--- a/src/components/LatestMeasurementCard.tsx
+++ b/src/components/LatestMeasurementCard.tsx
@ -1,11 +1,8 @@
-import React, { useRef } from 'react'
-import { View, Text, StyleSheet, TouchableOpacity } from 'react-native'
-import ViewShot from 'react-native-view-shot'
-import * as Sharing from 'expo-sharing'
-import { MaterialIcons } from '@expo/vector-icons'
+import React from 'react'
+import { View, Text, StyleSheet } from 'react-native'
 import { Measurement } from '../types'

-type Props = { measurements: Measurement[] }
+type Props = { measurement: Measurement | null }

 const rows: { label: string; key: keyof Measurement; suffix: string }[] = [
  { label: 'Gewicht', key: 'weight', suffix: 'kg' },
@ -18,10 +15,8 @@ const rows: { label: string; key: keyof Measurement; suffix: string }[] = [
  { label: 'Stofwisseling', key: 'bmr', suffix: 'kcal' },
 ]

-export default function LatestMeasurementCard({ measurements }: Props) {
-  const viewShotRef = useRef<ViewShot>(null)
-
-  if (measurements.length === 0) {
+export default function LatestMeasurementCard({ measurement }: Props) {
+  if (!measurement) {
    return (
      <View style={styles.card}>
        <Text style={styles.emptyText}>Nog geen metingen</Text>
@ -29,89 +24,31 @@ export default function LatestMeasurementCard({ measurements }: Props) {
    )
  }

-  const latest = measurements[0]
-  const previous = measurements[1]
-  const diff = previous ? (latest.weight - previous.weight) : null
-  const fatMassDiff = previous ? (latest.fatMass - previous.fatMass) : null
-  const muscleMassDiff = previous ? (latest.muscleMass - previous.muscleMass) : null
-
-  let positiveComment: string | null = null
-  if (previous && diff !== null && diff >= 0) {
-    const parts: string[] = []
-    if (fatMassDiff !== null && fatMassDiff < 0) parts.push('Vetje naar beneden')
-    if (muscleMassDiff !== null && muscleMassDiff > 0) parts.push('💪')
-    if (parts.length > 0) positiveComment = parts.join(' ')
-  }
-
-  const handleShare = async () => {
-    try {
-      const uri = await viewShotRef.current?.capture?.()
-      if (uri) {
-        await Sharing.shareAsync(uri, { mimeType: 'image/png' })
-      }
-    } catch {}
-  }
-
  return (
    <View style={styles.card}>
-      <View style={styles.header}>
-        <View style={{ flex: 1 }} />
-        <TouchableOpacity onPress={handleShare} hitSlop={{ top: 8, bottom: 8, left: 8, right: 8 }}>
-          <MaterialIcons name="share" size={24} color="#2196F3" />
-        </TouchableOpacity>
-      </View>
-
-      <ViewShot ref={viewShotRef} options={{ format: 'png', quality: 1 }}>
-        <View style={styles.shotContent}>
-          {previous && (
-            <View style={styles.previous}>
-              <Text style={styles.previousTitle}>Voorlaatste meting</Text>
-              <Text style={styles.previousDate}>
-                {new Date(previous.measuredAt).toLocaleDateString('nl-NL')} — {previous.weight.toFixed(1)} kg
-              </Text>
-              <Text style={styles.diffLabel}>
-                Verschil {diff !== null && (diff > 0 ? '+' : '')}{diff?.toFixed(1)} kg
-              </Text>
-              {positiveComment && (
-                <Text style={styles.positiveComment}>{positiveComment}</Text>
-              )}
-              <View style={styles.divider} />
-            </View>
-          )}
-
-          <Text style={styles.title}>Laatste meting</Text>
-          <Text style={styles.date}>{new Date(latest.measuredAt).toLocaleDateString('nl-NL')}</Text>
-          {rows.map(r => (
-            <View key={r.key} style={styles.row}>
-              <Text style={styles.rowLabel}>{r.label}</Text>
-              <Text style={styles.rowValue}>
-                {typeof latest[r.key] === 'number'
-                  ? (latest[r.key] as number).toFixed(1)
-                  : latest[r.key]}{' '}
-                {r.suffix}
-              </Text>
-            </View>
-          ))}
+      <Text style={styles.title}>Laatste meting</Text>
+      <Text style={styles.date}>{new Date(measurement.measuredAt).toLocaleDateString('nl-NL')}</Text>
+      {rows.map(r => (
+        <View key={r.key} style={styles.row}>
+          <Text style={styles.rowLabel}>{r.label}</Text>
+          <Text style={styles.rowValue}>
+            {typeof measurement[r.key] === 'number'
+              ? (measurement[r.key] as number).toFixed(1)
+              : measurement[r.key]}{' '}
+            {r.suffix}
+          </Text>
        </View>
-      </ViewShot>
+      ))}
    </View>
  )
 }

 const styles = StyleSheet.create({
  card: { backgroundColor: '#fff', borderRadius: 12, padding: 16, margin: 16, shadowColor: '#000', shadowOpacity: 0.1, shadowRadius: 8, elevation: 3 },
-  header: { flexDirection: 'row', alignItems: 'center', marginBottom: 8 },
-  shotContent: { backgroundColor: '#fff', padding: 16 },
  title: { fontSize: 18, fontWeight: '700', marginBottom: 4 },
  date: { fontSize: 14, color: '#666', marginBottom: 12 },
-  row: { flexDirection: 'row', paddingVertical: 4 },
-  rowLabel: { fontSize: 14, color: '#555', flex: 1 },
+  row: { flexDirection: 'row', justifyContent: 'space-between', paddingVertical: 4 },
+  rowLabel: { fontSize: 14, color: '#555' },
  rowValue: { fontSize: 14, fontWeight: '600' },
  emptyText: { fontSize: 16, color: '#999', textAlign: 'center', padding: 20 },
-  previous: { marginBottom: 4 },
-  divider: { height: 1, backgroundColor: '#eee', marginVertical: 12 },
-  previousTitle: { fontSize: 18, fontWeight: '700', marginBottom: 4 },
-  previousDate: { fontSize: 14, color: '#666', marginBottom: 4 },
-  diffLabel: { fontSize: 16, fontWeight: '700', color: '#2196F3' },
-  positiveComment: { fontSize: 14, color: '#4CAF50', marginTop: 4 },
 })
--- a/src/components/MeasurementForm.tsx
+++ b/src/components/MeasurementForm.tsx
@ -8,7 +8,6 @@ import { generateId } from '../utils/uuid'
 type Props = {
  onSubmit: (m: Measurement) => void
  initialValues?: Partial<Measurement>
-  isEdit?: boolean
 }

 type FieldDef = {
@ -30,10 +29,13 @@ const fields: FieldDef[] = [
  { key: 'bmr', label: 'Stofwisseling (kcal)', placeholder: '1650', keyboardType: 'number-pad' },
 ]

-export default function MeasurementForm({ onSubmit, initialValues, isEdit }: Props) {
+export default function MeasurementForm({ onSubmit, initialValues }: Props) {
  const insets = useSafeAreaInsets()
  const [pickerOpen, setPickerOpen] = useState(false)
-  const [measurementDate, setMeasurementDate] = useState<Date>(new Date())
+  const [measurementDate, setMeasurementDate] = useState<Date>(() => {
+    if (initialValues?.measuredAt) return new Date(initialValues.measuredAt)
+    return new Date()
+  })
  const [values, setValues] = useState<Record<string, string>>(() => {
    const init: Record<string, string> = {}
    for (const f of fields) {
@ -45,18 +47,9 @@ export default function MeasurementForm({ onSubmit, initialValues, isEdit }: Pro



-function toFloat(s: string): number {
-  return parseFloat(s.replace(',', '.')) || 0
-}
-
-function toInt(s: string): number {
-  return parseInt(s.replace(',', '.'), 10) || 0
-}
-
-
-  const weight = toFloat(values.weight)
-  const bodyFatPct = toFloat(values.bodyFatPercentage)
-  const musclePct = toFloat(values.musclePercentage)
+  const weight = parseFloat(values.weight) || 0
+  const bodyFatPct = parseFloat(values.bodyFatPercentage) || 0
+  const musclePct = parseFloat(values.musclePercentage) || 0

  const computed = useMemo(() => ({
    fatMass: weight > 0 && bodyFatPct > 0 ? ((weight * bodyFatPct) / 100).toFixed(1) : '',
@ -66,18 +59,20 @@ function toInt(s: string): number {
  const handleSubmit = () => {
    const now = new Date().toISOString()
    const m: Measurement = {
-      id: isEdit && initialValues?.id ? initialValues.id : generateId(),
+      id: generateId(),
      weight,
-      bmi: toFloat(values.bmi),
+      bmi: parseFloat(values.bmi) || 0,
      bodyFatPercentage: bodyFatPct,
-      fatMass: toFloat(computed.fatMass),
+      fatMass: parseFloat(computed.fatMass) || 0,
      musclePercentage: musclePct,
-      muscleMass: toFloat(computed.muscleMass),
-      visceralFat: toInt(values.visceralFat),
-      bmr: toFloat(values.bmr),
+      muscleMass: parseFloat(computed.muscleMass) || 0,
+      visceralFat: parseInt(values.visceralFat, 10) || 0,
+      bmr: parseFloat(values.bmr) || 0,
      measuredAt: measurementDate.toISOString(),
-      createdAt: isEdit && initialValues?.createdAt ? initialValues.createdAt : now,
+      createdAt: now,
      updatedAt: now,
+      syncStatus: 'local',
+      deleted: 0,
    }
    onSubmit(m)
  }
@ -146,7 +141,7 @@ function toInt(s: string): number {
          )
        })}
      </ScrollView>
-      <TouchableOpacity style={[styles.button, { marginBottom: insets.bottom + 48 }]} onPress={handleSubmit}>
+      <TouchableOpacity style={[styles.button, { marginBottom: insets.bottom + 16 }]} onPress={handleSubmit}>
        <Text style={styles.buttonText}>Opslaan</Text>
      </TouchableOpacity>
    </KeyboardAvoidingView>
@ -155,7 +150,7 @@ function toInt(s: string): number {

 const styles = StyleSheet.create({
  container: { flex: 1, backgroundColor: '#f5f5f5' },
-  scroll: { padding: 16 },
+  scroll: { padding: 16, paddingBottom: 0 },
  field: { marginBottom: 12 },
  label: { fontSize: 14, fontWeight: '600', color: '#333', marginBottom: 4 },
  input: { backgroundColor: '#fff', borderRadius: 8, padding: 12, fontSize: 16, borderWidth: 1, borderColor: '#ddd' },
--- a/src/components/WeightChart.tsx
+++ b/src/components/WeightChart.tsx
@ -1,5 +1,5 @@
-import React, { useRef, useState } from 'react'
-import { View, Text, StyleSheet, Dimensions, ScrollView, NativeSyntheticEvent, NativeScrollEvent } from 'react-native'
+import React from 'react'
+import { View, Text, StyleSheet, useWindowDimensions } from 'react-native'
 import { LineChart } from 'react-native-chart-kit'
 import { Measurement } from '../types'

@ -11,9 +11,6 @@ const COLORS = {
  muscleMass: '#2196F3',
 }

-const screenWidth = Dimensions.get('window').width
-const chartWidth = screenWidth - 32
-
 function SingleChart({
  title,
  data,
@ -27,12 +24,13 @@ function SingleChart({
  color: string
  unit: string
 }) {
+  const { width } = useWindowDimensions()
  return (
    <View style={styles.chartBlock}>
      <Text style={styles.chartTitle}>{title}</Text>
      <LineChart
        data={{ labels, datasets: [{ data, color: () => color, strokeWidth: 2 }] }}
-        width={chartWidth}
+        width={width - 32}
        height={180}
        yAxisSuffix={unit}
        chartConfig={{
@ -60,63 +58,7 @@ function hexToRgb(hex: string): string {
  return `${r}, ${g}, ${b}`
 }

-function filterData(sorted: Measurement[], days: number, lastDate: Date) {
-  const cutoff = new Date(lastDate)
-  cutoff.setDate(cutoff.getDate() - days)
-  const filtered = sorted.filter(m => new Date(m.measuredAt) >= cutoff)
-  return filtered.length >= 2 ? filtered : sorted
-}
-
-function prepareLabels(dataPoints: Measurement[]) {
-  const labels = dataPoints.map(m => {
-    const d = new Date(m.measuredAt)
-    return `${d.getDate()}/${d.getMonth() + 1}`
-  })
-  const labelStep = labels.length > 8 ? Math.ceil(labels.length / 8) : 1
-  return labels.map((l, i) => (i % labelStep === 0 ? l : ''))
-}
-
-function ChartSet({ dataPoints, title }: { dataPoints: Measurement[]; title: string }) {
-  const labels = prepareLabels(dataPoints)
-  const fatMassPoints = dataPoints.filter(m => m.bodyFatPercentage > 0)
-  const muscleMassPoints = dataPoints.filter(m => m.musclePercentage > 0)
-
-  return (
-    <View style={styles.page}>
-      <Text style={styles.title}>{title}</Text>
-      <SingleChart
-        title="Gewicht"
-        data={dataPoints.map(m => m.weight)}
-        labels={labels}
-        color={COLORS.weight}
-        unit=" kg"
-      />
-      {fatMassPoints.length >= 2 && (
-        <SingleChart
-          title="Vetmassa"
-          data={fatMassPoints.map(m => m.fatMass)}
-          labels={prepareLabels(fatMassPoints)}
-          color={COLORS.fatMass}
-          unit=" kg"
-        />
-      )}
-      {muscleMassPoints.length >= 2 && (
-        <SingleChart
-          title="Spiermassa"
-          data={muscleMassPoints.map(m => m.muscleMass)}
-          labels={prepareLabels(muscleMassPoints)}
-          color={COLORS.muscleMass}
-          unit=" kg"
-        />
-      )}
-    </View>
-  )
-}
-
 export default function WeightChart({ measurements }: Props) {
-  const scrollRef = useRef<ScrollView>(null)
-  const [page, setPage] = useState(0)
-
  if (measurements.length < 2) {
    return null
  }
@ -125,38 +67,52 @@ export default function WeightChart({ measurements }: Props) {
    (a, b) => new Date(a.measuredAt).getTime() - new Date(b.measuredAt).getTime()
  )

-  const lastDate = new Date(sorted[sorted.length - 1].measuredAt)
+  const cutoff = new Date(sorted[sorted.length - 1].measuredAt)
+  cutoff.setDate(cutoff.getDate() - 30)
+  const filtered = sorted.filter(m => new Date(m.measuredAt) >= cutoff)
+  const dataPoints = filtered.length >= 2 ? filtered : sorted

-  const data30 = filterData(sorted, 30, lastDate)
-  const data365 = filterData(sorted, 365, lastDate)
+  const labels = dataPoints.map(m => {
+    const d = new Date(m.measuredAt)
+    return `${d.getDate()}/${d.getMonth() + 1}`
+  })

-  const onScroll = (e: NativeSyntheticEvent<NativeScrollEvent>) => {
-    const offset = e.nativeEvent.contentOffset.x
-    const newPage = Math.round(offset / screenWidth)
-    if (newPage !== page) {
-      setPage(newPage)
-    }
-  }
+  const labelStep = labels.length > 8 ? Math.ceil(labels.length / 8) : 1
+  const sparseLabels = labels.map((l, i) => (i % labelStep === 0 ? l : ''))

  return (
    <View style={styles.container}>
-      <ScrollView
-        ref={scrollRef}
-        horizontal
-        pagingEnabled
-        showsHorizontalScrollIndicator={false}
-        onMomentumScrollEnd={onScroll}
-      >
-        <ChartSet dataPoints={data30} title="Voortgang (30 dagen)" />
-        <ChartSet dataPoints={data365} title="Voortgang (365 dagen)" />
-      </ScrollView>
+      <Text style={styles.title}>Voortgang (30 dagen)</Text>
+
+      <SingleChart
+        title="Gewicht"
+        data={dataPoints.map(m => m.weight)}
+        labels={sparseLabels}
+        color={COLORS.weight}
+        unit=" kg"
+      />
+
+      <SingleChart
+        title="Vetmassa"
+        data={dataPoints.map(m => m.fatMass)}
+        labels={sparseLabels}
+        color={COLORS.fatMass}
+        unit=" kg"
+      />
+
+      <SingleChart
+        title="Spiermassa"
+        data={dataPoints.map(m => m.muscleMass)}
+        labels={sparseLabels}
+        color={COLORS.muscleMass}
+        unit=" kg"
+      />
    </View>
  )
 }

 const styles = StyleSheet.create({
-  container: { marginBottom: 16 },
-  page: { width: screenWidth, paddingHorizontal: 16 },
+  container: { marginHorizontal: 16, marginBottom: 16 },
  title: { fontSize: 18, fontWeight: '700', marginBottom: 8 },
  chartBlock: { marginBottom: 12 },
  chartTitle: { fontSize: 13, fontWeight: '600', color: '#555', marginBottom: 4, marginLeft: 4 },
--- a/src/database/db.ts
+++ b/src/database/db.ts
@ -1,8 +1,7 @@
 import * as SQLite from 'expo-sqlite'
-import { Measurement } from '../types'
+import { Measurement, SyncStatus } from '../types'

 let db: SQLite.SQLiteDatabase | null = null
-let dbReady = false

 export async function initDatabase(): Promise<void> {
  if (db) return
@ -21,112 +20,81 @@ export async function initDatabase(): Promise<void> {
      measuredAt TEXT NOT NULL,
      createdAt TEXT NOT NULL,
      updatedAt TEXT NOT NULL,
-      syncStatus TEXT NOT NULL DEFAULT 'pending',
-      deletedAt TEXT
+      syncStatus TEXT NOT NULL DEFAULT 'local',
+      deleted INTEGER NOT NULL DEFAULT 0
    );
  `)
-  try {
-    await db.execAsync('ALTER TABLE measurements ADD COLUMN deletedAt TEXT')
-  } catch {}
-
-  // Migrate existing records to crossbreed syncStatus model
-  if (!dbReady) {
-    try {
-      await db.execAsync("UPDATE measurements SET syncStatus = 'synced' WHERE syncStatus = 'local'")
-    } catch {}
-    dbReady = true
-  }
+  await db.execAsync(`ALTER TABLE measurements ADD COLUMN deleted INTEGER NOT NULL DEFAULT 0`)
+    .catch(() => {})
 }

 export async function insertMeasurement(m: Measurement): Promise<void> {
  await db!.runAsync(
-    `INSERT INTO measurements (id, weight, bmi, bodyFatPercentage, fatMass, musclePercentage, muscleMass, visceralFat, bmr, measuredAt, createdAt, updatedAt, deletedAt)
-     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
-    [m.id, m.weight, m.bmi, m.bodyFatPercentage, m.fatMass, m.musclePercentage, m.muscleMass, m.visceralFat, m.bmr, m.measuredAt, m.createdAt, m.updatedAt, m.deletedAt ?? null]
+    `INSERT INTO measurements (id, weight, bmi, bodyFatPercentage, fatMass, musclePercentage, muscleMass, visceralFat, bmr, measuredAt, createdAt, updatedAt, syncStatus, deleted)
+     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+    [m.id, m.weight, m.bmi, m.bodyFatPercentage, m.fatMass, m.musclePercentage, m.muscleMass, m.visceralFat, m.bmr, m.measuredAt, m.createdAt, m.updatedAt, m.syncStatus, 0]
  )
 }

+function activeOnly(): string {
+  return 'deleted = 0'
+}
+
 export async function getAllMeasurements(): Promise<Measurement[]> {
  const rows = await db!.getAllAsync<any>(
-    'SELECT * FROM measurements WHERE deletedAt IS NULL ORDER BY measuredAt DESC'
-  )
-  return rows as Measurement[]
-}
-
-export async function getAllMeasurementsForSync(): Promise<Measurement[]> {
-  const rows = await db!.getAllAsync<any>(
-    'SELECT * FROM measurements ORDER BY measuredAt DESC'
+    `SELECT * FROM measurements WHERE ${activeOnly()} ORDER BY measuredAt DESC`
  )
  return rows as Measurement[]
 }

 export async function getLatestMeasurement(): Promise<Measurement | null> {
  const rows = await db!.getAllAsync<any>(
-    'SELECT * FROM measurements WHERE deletedAt IS NULL ORDER BY measuredAt DESC LIMIT 1'
+    `SELECT * FROM measurements WHERE ${activeOnly()} ORDER BY measuredAt DESC LIMIT 1`
  )
  return rows.length > 0 ? (rows[0] as Measurement) : null
 }

-export async function getLatestMeasurements(count: number): Promise<Measurement[]> {
-  const rows = await db!.getAllAsync<any>(
-    'SELECT * FROM measurements WHERE deletedAt IS NULL ORDER BY measuredAt DESC LIMIT ?',
-    [count]
-  )
-  return rows as Measurement[]
-}
-
-export async function getMeasurementsSince(date: string): Promise<Measurement[]> {
-  const rows = await db!.getAllAsync<any>(
-    'SELECT * FROM measurements WHERE measuredAt >= ? AND deletedAt IS NULL ORDER BY measuredAt DESC',
-    [date]
-  )
-  return rows as Measurement[]
-}
-
 export async function getMeasurementByDate(date: string): Promise<Measurement | null> {
  const day = date.slice(0, 10)
  const rows = await db!.getAllAsync<any>(
-    "SELECT * FROM measurements WHERE measuredAt LIKE ? AND deletedAt IS NULL LIMIT 1",
+    `SELECT * FROM measurements WHERE ${activeOnly()} AND measuredAt LIKE ? LIMIT 1`,
    [`${day}%`]
  )
  return rows.length > 0 ? (rows[0] as Measurement) : null
 }

+export async function updateMeasurement(id: string, syncStatus: SyncStatus): Promise<void> {
+  await db!.runAsync(
+    'UPDATE measurements SET syncStatus = ?, updatedAt = ? WHERE id = ?',
+    [syncStatus, new Date().toISOString(), id]
+  )
+}
+
 export async function upsertMeasurement(m: Measurement): Promise<void> {
  await db!.runAsync(
-    `INSERT OR REPLACE INTO measurements (id, weight, bmi, bodyFatPercentage, fatMass, musclePercentage, muscleMass, visceralFat, bmr, measuredAt, createdAt, updatedAt, deletedAt)
-     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
-    [m.id, m.weight, m.bmi, m.bodyFatPercentage, m.fatMass, m.musclePercentage, m.muscleMass, m.visceralFat, m.bmr, m.measuredAt, m.createdAt, m.updatedAt, m.deletedAt ?? null]
+    `INSERT OR REPLACE INTO measurements (id, weight, bmi, bodyFatPercentage, fatMass, musclePercentage, muscleMass, visceralFat, bmr, measuredAt, createdAt, updatedAt, syncStatus, deleted)
+     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+    [m.id, m.weight, m.bmi, m.bodyFatPercentage, m.fatMass, m.musclePercentage, m.muscleMass, m.visceralFat, m.bmr, m.measuredAt, m.createdAt, m.updatedAt, m.syncStatus, m.deleted]
  )
 }

-export async function getMeasurementsUpdatedSince(since: string): Promise<Measurement[]> {
+export async function getUnsyncedMeasurements(): Promise<Measurement[]> {
  const rows = await db!.getAllAsync<any>(
-    'SELECT * FROM measurements WHERE updatedAt > ? ORDER BY updatedAt ASC',
-    [since]
+    "SELECT * FROM measurements WHERE syncStatus = 'local' ORDER BY updatedAt ASC"
  )
  return rows as Measurement[]
 }

-export async function setDeletedAt(id: string): Promise<void> {
-  const now = new Date().toISOString()
+export async function deleteMeasurement(id: string): Promise<void> {
  await db!.runAsync(
-    'UPDATE measurements SET deletedAt = ?, updatedAt = ? WHERE id = ?',
-    [now, now, id]
+    "UPDATE measurements SET deleted = 1, syncStatus = 'local', updatedAt = ? WHERE id = ?",
+    [new Date().toISOString(), id]
  )
 }

-export async function removeMeasurement(id: string): Promise<void> {
-  await db!.runAsync('DELETE FROM measurements WHERE id = ?', [id])
-}
-
-export async function updateSyncStatus(id: string, status: string): Promise<void> {
-  await db!.runAsync('UPDATE measurements SET syncStatus = ? WHERE id = ?', [status, id])
-}
-
-export async function getPendingRecords(): Promise<Measurement[]> {
+export async function getAllMeasurementsIncludingDeleted(): Promise<Measurement[]> {
  const rows = await db!.getAllAsync<any>(
-    "SELECT * FROM measurements WHERE syncStatus IN ('pending', 'pending-delete') ORDER BY updatedAt ASC"
+    'SELECT * FROM measurements ORDER BY measuredAt DESC'
  )
  return rows as Measurement[]
 }
--- a/src/screens/DashboardScreen.tsx
+++ b/src/screens/DashboardScreen.tsx
@ -1,9 +1,8 @@
-import React, { useCallback, useRef, useState } from 'react'
+import React, { useCallback, useState } from 'react'
 import { View, ScrollView, TouchableOpacity, Text, StyleSheet } from 'react-native'
 import { useFocusEffect } from '@react-navigation/native'
 import { useSafeAreaInsets } from 'react-native-safe-area-context'
-import { getCached, getVersion, refreshCache } from '../store/measurementStore'
-import { initDatabase, getLatestMeasurements } from '../database/db'
+import { initDatabase, getAllMeasurements, getLatestMeasurement } from '../database/db'
 import { Measurement } from '../types'
 import LatestMeasurementCard from '../components/LatestMeasurementCard'
 import WeightChart from '../components/WeightChart'
@ -12,76 +11,22 @@ type Props = { navigation: any }

 export default function DashboardScreen({ navigation }: Props) {
  const insets = useSafeAreaInsets()
-  const [latestTwo, setLatestTwo] = useState<Measurement[]>([])
+  const [latest, setLatest] = useState<Measurement | null>(null)
  const [all, setAll] = useState<Measurement[]>([])
-  const [chartKey, setChartKey] = useState(0)
-  const seenVersion = useRef(0)

  useFocusEffect(
    useCallback(() => {
-      let active = true
      const load = async () => {
        await initDatabase()
-
-        const two = await getLatestMeasurements(2)
-        if (!active) return
-        setLatestTwo(two)
-
-        await refreshCache()
-        if (!active) return
-        const v = getVersion()
-        if (v !== seenVersion.current) {
-          setAll(getCached())
-          setChartKey(v)
-          seenVersion.current = v
-        }
-
-        try {
-          const { syncAll } = await import('../sync/syncService')
-          const result = await syncAll()
-          if (!active) return
-          if (result.deleted > 0 || result.pulled > 0) {
-            await refreshCache()
-            const v2 = getVersion()
-            setAll(getCached())
-            setChartKey(v2)
-            seenVersion.current = v2
-          }
-        } catch {
-          console.warn('Sync failed')
-        }
+        const allM = await getAllMeasurements()
+        setAll(allM)
+        const latestM = await getLatestMeasurement()
+        setLatest(latestM)
      }
      load()
-      return () => { active = false }
    }, [])
  )

-  if (all.length === 0 && latestTwo.length === 0) {
-    return (
-      <View style={styles.outer}>
-        <View style={styles.navBar}>
-          <TouchableOpacity onPress={() => navigation.navigate('History')}>
-            <Text style={styles.navLink}>Historie</Text>
-          </TouchableOpacity>
-          <TouchableOpacity onPress={() => navigation.navigate('Settings')}>
-            <Text style={styles.navLink}>Instellingen</Text>
-          </TouchableOpacity>
-        </View>
-        <View style={styles.loadingContainer}>
-          <Text style={styles.loading}>Laden...</Text>
-        </View>
-        <TouchableOpacity
-          style={[styles.fab, { marginBottom: insets.bottom + 16 }]}
-          onPress={() => navigation.navigate('NewMeasurement')}
-        >
-          <Text style={styles.fabText}>+ Nieuwe meting</Text>
-        </TouchableOpacity>
-      </View>
-    )
-  }
-
-  const display = all.length > 0 ? all : latestTwo
-
  return (
    <View style={styles.outer}>
      <View style={styles.navBar}>
@ -93,8 +38,8 @@ export default function DashboardScreen({ navigation }: Props) {
        </TouchableOpacity>
      </View>
      <ScrollView style={styles.container}>
-        <LatestMeasurementCard measurements={display} />
-        {all.length >= 2 && <WeightChart key={chartKey} measurements={all} />}
+        <LatestMeasurementCard measurement={latest} />
+        <WeightChart measurements={all} />
      </ScrollView>

      <TouchableOpacity
@ -114,6 +59,4 @@ const styles = StyleSheet.create({
  navLink: { fontSize: 16, color: '#2196F3', fontWeight: '600' },
  fab: { backgroundColor: '#4CAF50', padding: 16, borderRadius: 8, margin: 16, alignItems: 'center' },
  fabText: { color: '#fff', fontSize: 16, fontWeight: '700' },
-  loadingContainer: { flex: 1, justifyContent: 'center', alignItems: 'center' },
-  loading: { fontSize: 16, color: '#999' },
 })
--- a/src/screens/HistoryScreen.tsx
+++ b/src/screens/HistoryScreen.tsx
@ -1,8 +1,7 @@
 import React, { useCallback, useState } from 'react'
-import { View, FlatList, StyleSheet, Text, RefreshControl, TouchableOpacity, Alert } from 'react-native'
+import { View, FlatList, StyleSheet, Text, RefreshControl, Alert } from 'react-native'
 import { useFocusEffect } from '@react-navigation/native'
-import { initDatabase, getAllMeasurements, setDeletedAt, updateSyncStatus } from '../database/db'
-import { refreshCache } from '../store/measurementStore'
+import { initDatabase, getAllMeasurements, deleteMeasurement } from '../database/db'
 import { Measurement } from '../types'
 import MeasurementRow from '../components/MeasurementRow'

@ -62,9 +61,13 @@ export default function HistoryScreen({ navigation }: Props) {
          style: 'destructive',
          onPress: async () => {
            await initDatabase()
-            await setDeletedAt(m.id)
-            await updateSyncStatus(m.id, 'pending-delete')
-            await refreshCache()
+            await deleteMeasurement(m.id)
+            try {
+              const { syncAll } = await import('../sync/syncService')
+              await syncAll()
+            } catch (e) {
+              console.warn('Sync failed after delete:', e)
+            }
            load()
          },
        },
@ -79,10 +82,7 @@ export default function HistoryScreen({ navigation }: Props) {
        data={measurements}
        keyExtractor={item => item.id}
        renderItem={({ item }) => (
-          <MeasurementRow
-            measurement={item}
-            onPress={() => navigation.navigate('MeasurementDetail', { measurementId: item.id })}
-          />
+          <MeasurementRow measurement={item} onPress={() => handlePress(item)} />
        )}
        contentContainerStyle={measurements.length === 0 ? styles.empty : undefined}
        ListEmptyComponent={<Text style={styles.emptyText}>Nog geen metingen</Text>}
--- a/src/screens/MeasurementDetailScreen.tsx
+++ b/src/screens/MeasurementDetailScreen.tsx
@ -1,134 +0,0 @@
-import React, { useCallback, useState } from 'react'
-import { View, Text, StyleSheet, TouchableOpacity, Alert, ScrollView } from 'react-native'
-import { useFocusEffect } from '@react-navigation/native'
-import { useSafeAreaInsets } from 'react-native-safe-area-context'
-import { initDatabase, getAllMeasurements, setDeletedAt, updateSyncStatus } from '../database/db'
-import { refreshCache } from '../store/measurementStore'
-import { Measurement } from '../types'
-
-type Props = {
-  navigation: any
-  route: {
-    params: {
-      measurementId: string
-    }
-  }
-}
-
-const rows: { label: string; key: keyof Measurement; suffix: string }[] = [
-  { label: 'Gewicht', key: 'weight', suffix: 'kg' },
-  { label: 'BMI', key: 'bmi', suffix: '' },
-  { label: 'Vetpercentage', key: 'bodyFatPercentage', suffix: '%' },
-  { label: 'Vetmassa', key: 'fatMass', suffix: 'kg' },
-  { label: 'Spierpercentage', key: 'musclePercentage', suffix: '%' },
-  { label: 'Spiermassa', key: 'muscleMass', suffix: 'kg' },
-  { label: 'Buikvet', key: 'visceralFat', suffix: '' },
-  { label: 'Stofwisseling', key: 'bmr', suffix: 'kcal' },
-]
-
-export default function MeasurementDetailScreen({ navigation, route }: Props) {
-  const insets = useSafeAreaInsets()
-  const { measurementId } = route.params
-  const [measurement, setMeasurement] = useState<Measurement | null>(null)
-
-  useFocusEffect(
-    useCallback(() => {
-      const load = async () => {
-        await initDatabase()
-        const all = await getAllMeasurements()
-        const m = all.find(x => x.id === measurementId)
-        setMeasurement(m ?? null)
-      }
-      load()
-    }, [measurementId])
-  )
-
-  const handleEdit = () => {
-    navigation.navigate('NewMeasurement', { measurement })
-  }
-
-  const handleDelete = () => {
-    Alert.alert(
-      'Meting verwijderen?',
-      'Dit kan niet ongedaan worden gemaakt.',
-      [
-        { text: 'Annuleren', style: 'cancel' },
-        {
-          text: 'Verwijderen',
-          style: 'destructive',
-          onPress: async () => {
-            await initDatabase()
-            await setDeletedAt(measurementId)
-            await updateSyncStatus(measurementId, 'pending-delete')
-            await refreshCache()
-            navigation.goBack()
-          },
-        },
-      ]
-    )
-  }
-
-  if (!measurement) {
-    return (
-      <View style={styles.centered}>
-        <Text style={{ color: '#999' }}>Laden...</Text>
-      </View>
-    )
-  }
-
-  return (
-    <View style={styles.container}>
-      <ScrollView contentContainerStyle={styles.content}>
-        <Text style={styles.date}>
-          {new Date(measurement.measuredAt).toLocaleDateString('nl-NL', {
-            weekday: 'long',
-            day: 'numeric',
-            month: 'long',
-            year: 'numeric',
-          })}
-        </Text>
-
-        {rows.map(r => (
-          <View key={r.key} style={styles.row}>
-            <Text style={styles.label}>{r.label}</Text>
-            <Text style={styles.value}>
-              {typeof measurement[r.key] === 'number'
-                ? (measurement[r.key] as number).toFixed(1)
-                : measurement[r.key]}{' '}
-              {r.suffix}
-            </Text>
-          </View>
-        ))}
-      </ScrollView>
-
-      <View style={[styles.buttons, { paddingBottom: insets.bottom + 16 }]}>
-        <TouchableOpacity style={styles.editButton} onPress={handleEdit}>
-          <Text style={styles.buttonText}>Wijzigen</Text>
-        </TouchableOpacity>
-        <TouchableOpacity style={styles.deleteButton} onPress={handleDelete}>
-          <Text style={styles.buttonText}>Verwijderen</Text>
-        </TouchableOpacity>
-      </View>
-    </View>
-  )
-}
-
-const styles = StyleSheet.create({
-  container: { flex: 1, backgroundColor: '#f5f5f5' },
-  content: { padding: 16 },
-  centered: { flex: 1, justifyContent: 'center', alignItems: 'center', backgroundColor: '#f5f5f5' },
-  date: { fontSize: 18, fontWeight: '700', marginBottom: 16, textAlign: 'center' },
-  row: {
-    flexDirection: 'row',
-    backgroundColor: '#fff',
-    padding: 14,
-    marginBottom: 8,
-    borderRadius: 8,
-  },
-  label: { fontSize: 15, color: '#555', flex: 1 },
-  value: { fontSize: 15, fontWeight: '600' },
-  buttons: { flexDirection: 'row', gap: 12, padding: 16 },
-  editButton: { flex: 1, backgroundColor: '#2196F3', padding: 14, borderRadius: 8, alignItems: 'center' },
-  deleteButton: { flex: 1, backgroundColor: '#e53935', padding: 14, borderRadius: 8, alignItems: 'center' },
-  buttonText: { color: '#fff', fontSize: 16, fontWeight: '700' },
-})
--- a/src/screens/NewMeasurementScreen.tsx
+++ b/src/screens/NewMeasurementScreen.tsx
@ -1,90 +1,101 @@
-import React, { useCallback, useState } from 'react'
+import React, { useCallback, useEffect, useState } from 'react'
 import { View, Text, Alert } from 'react-native'
 import { useFocusEffect } from '@react-navigation/native'
 import MeasurementForm from '../components/MeasurementForm'
 import { Measurement } from '../types'
-import { initDatabase, insertMeasurement, upsertMeasurement, getLatestMeasurement, getMeasurementByDate } from '../database/db'
-import { refreshCache } from '../store/measurementStore'
-import { showSuccess, showError } from '../utils/toast'
+import {
+  initDatabase,
+  insertMeasurement,
+  getLatestMeasurement,
+  getMeasurementByDate,
+  upsertMeasurement,
+} from '../database/db'

 type Props = {
  navigation: any
-  route: {
-    params: {
-      measurement?: Measurement
-    }
-  }
+  route: any
 }

 export default function NewMeasurementScreen({ navigation, route }: Props) {
-  const editMeasurement = route.params?.measurement
-  const isEdit = !!editMeasurement
+  const editing = route.params?.measurement as Measurement | undefined
  const [latest, setLatest] = useState<Partial<Measurement> | undefined>(undefined)
  const [loaded, setLoaded] = useState(false)

-  React.useLayoutEffect(() => {
-    navigation.setOptions({ title: isEdit ? 'Meting wijzigen' : 'Nieuwe meting' })
-  }, [navigation, isEdit])
-
  useFocusEffect(
    useCallback(() => {
-      if (isEdit) {
-        setLatest(editMeasurement)
-        setLoaded(true)
-        return
-      }
      let cancelled = false
      const load = async () => {
        await initDatabase()
-        const m = await getLatestMeasurement()
-        if (!cancelled) {
-          setLatest(m || {})
-          setLoaded(true)
+        if (editing) {
+          if (!cancelled) {
+            setLatest(editing)
+            setLoaded(true)
+          }
+        } else {
+          const m = await getLatestMeasurement()
+          if (!cancelled) {
+            setLatest(m || {})
+            setLoaded(true)
+          }
        }
      }
      load()
      return () => { cancelled = true }
-    }, [isEdit, editMeasurement])
+    }, [editing])
  )

+  useEffect(() => {
+    if (editing) {
+      navigation.setOptions({ title: 'Meting wijzigen' })
+    }
+  }, [editing, navigation])
+
  const handleSubmit = async (m: Measurement) => {
    await initDatabase()
-    if (isEdit) {
+    if (editing) {
+      m.id = editing.id
+      m.createdAt = editing.createdAt
+      await upsertMeasurement(m)
+      doSync()
+      return
+    }
+    const existing = await getMeasurementByDate(m.measuredAt)
+    if (existing) {
+      Alert.alert(
+        'Dubbele datum',
+        `Er bestaat al een meting van ${new Date(m.measuredAt).toLocaleDateString('nl-NL')}. Overschrijven?`,
+        [
+          { text: 'Annuleren', style: 'cancel' },
+          { text: 'Overschrijven', style: 'destructive', onPress: () => doSave(m, existing) },
+        ]
+      )
+      return
+    }
+    doSave(m)
+  }
+
+  const doSave = async (m: Measurement, existing?: Measurement) => {
+    if (existing) {
+      m.id = existing.id
+      m.createdAt = existing.createdAt
      await upsertMeasurement(m)
    } else {
-      const existing = await getMeasurementByDate(m.measuredAt)
-      if (existing) {
-        Alert.alert(
-          'Dubbele datum',
-          `Er bestaat al een meting van ${new Date(m.measuredAt).toLocaleDateString('nl-NL')}. Overschrijven?`,
-          [
-            { text: 'Annuleren', style: 'cancel' },
-            { text: 'Overschrijven', style: 'destructive', onPress: () => {
-              m.id = existing.id
-              upsertMeasurement(m).then(() => doSave(m))
-            }},
-          ]
-        )
-        return
-      }
      await insertMeasurement(m)
    }
-    await doSave(m)
+    doSync()
  }

-  const doSave = async (m: Measurement) => {
-    await refreshCache()
-    navigation.goBack()
-    uploadInBackground(m)
-  }
-
-  const uploadInBackground = async (m: Measurement) => {
+  const doSync = async () => {
    try {
-      const { uploadMeasurement } = await import('../sync/syncService')
-      await uploadMeasurement(m)
-      showSuccess('Opgeslagen & gesynct')
+      const { syncAll } = await import('../sync/syncService')
+      await syncAll()
+      Alert.alert('Opgeslagen & gesynct', 'Meting is opgeslagen en gesynchroniseerd', [
+        { text: 'OK', onPress: () => navigation.goBack() },
+      ])
    } catch {
-      showError('Opgeslagen (sync mislukt)')
+      Alert.alert('Opgeslagen', 'Meting is opgeslagen (sync mislukt)', [
+        { text: 'OK', onPress: () => navigation.goBack() },
+      ])
    }
  }

@ -100,7 +111,6 @@ export default function NewMeasurementScreen({ navigation, route }: Props) {
    <MeasurementForm
      onSubmit={handleSubmit}
      initialValues={latest as Partial<Measurement> | undefined}
-      isEdit={isEdit}
    />
  )
 }
--- a/src/screens/SettingsScreen.tsx
+++ b/src/screens/SettingsScreen.tsx
@ -1,11 +1,11 @@
 import React, { useEffect, useState } from 'react'
 import { View, Text, TextInput, TouchableOpacity, StyleSheet, Alert, ScrollView } from 'react-native'
 import * as SecureStore from 'expo-secure-store'
-import { ApiConfig } from '../types'
+import { WebDAVConfig } from '../types'

-const CONFIG_KEY = 'weegschaal_api_config'
+const CONFIG_KEY = 'weegschaal_webdav_config'

-async function loadConfig(): Promise<ApiConfig | null> {
+async function loadConfig(): Promise<WebDAVConfig | null> {
  try {
    const json = await SecureStore.getItemAsync(CONFIG_KEY)
    return json ? JSON.parse(json) : null
@ -14,7 +14,7 @@ async function loadConfig(): Promise<ApiConfig | null> {
  }
 }

-export async function saveConfig(config: ApiConfig): Promise<void> {
+async function saveConfig(config: WebDAVConfig): Promise<void> {
  await SecureStore.setItemAsync(CONFIG_KEY, JSON.stringify(config))
 }

@ -22,43 +22,50 @@ async function deleteConfig(): Promise<void> {
  await SecureStore.deleteItemAsync(CONFIG_KEY)
 }

-export async function getApiConfig(): Promise<ApiConfig | null> {
+export async function getWebDAVConfig(): Promise<WebDAVConfig | null> {
  return loadConfig()
 }

 export default function SettingsScreen() {
-  const [url, setUrl] = useState('https://weegschaal.eddydevink.nl')
-  const [token, setToken] = useState('')
-  const [showToken, setShowToken] = useState(false)
+  const [url, setUrl] = useState('https://nextcloud.eddydevink.nl/remote.php/dav/files/eddy')
+  const [username, setUsername] = useState('')
+  const [password, setPassword] = useState('')
+  const [showPassword, setShowPassword] = useState(false)
  const [syncing, setSyncing] = useState(false)

  useEffect(() => {
    loadConfig().then(c => {
      if (c) {
        setUrl(c.url)
-        setToken(c.token)
+        setUsername(c.username)
+        setPassword(c.password)
      }
    })
  }, [])

  const handleSave = async () => {
-    await saveConfig({ url, token })
-    Alert.alert('Opgeslagen', 'API instellingen zijn opgeslagen')
+    await saveConfig({ url, username, password })
+    Alert.alert('Opgeslagen', 'WebDAV instellingen zijn opgeslagen')
  }

  const handleClear = () => {
-    Alert.alert('Instellingen wissen?', 'API configuratie definitief verwijderen?', [
-      { text: 'Annuleren', style: 'cancel' },
-      {
-        text: 'Ja, wissen',
-        style: 'destructive',
-        onPress: async () => {
-          await deleteConfig()
-          setUrl('')
-          setToken('')
+    Alert.alert(
+      'Instellingen wissen?',
+      'WebDAV configuratie definitief verwijderen? Je kunt deze later opnieuw invoeren.',
+      [
+        { text: 'Annuleren', style: 'cancel' },
+        {
+          text: 'Ja, wissen',
+          style: 'destructive',
+          onPress: async () => {
+            await deleteConfig()
+            setUrl('')
+            setUsername('')
+            setPassword('')
+          },
        },
-      },
-    ])
+      ]
+    )
  }

  const handleSync = async () => {
@ -66,11 +73,7 @@ export default function SettingsScreen() {
    try {
      const { syncAll } = await import('../sync/syncService')
      const result = await syncAll()
-      let msg = `Opgehaald: ${result.pulled}, gepusht: ${result.pushed}, verwijderd: ${result.deleted}`
-      if (result.errors.length > 0) {
-        msg += `\n\nFouten: ${result.errors.join(', ')}`
-      }
-      Alert.alert('Sync voltooid', msg)
+      Alert.alert('Sync voltooid', `Lokaal: ${result.local}, WebDAV: ${result.remote}, samengevoegd: ${result.merged}`)
    } catch (e: any) {
      Alert.alert('Sync fout', e?.message ?? 'Onbekende fout')
    } finally {
@ -80,30 +83,38 @@ export default function SettingsScreen() {

  return (
    <ScrollView style={styles.container} contentContainerStyle={styles.content}>
-      <Text style={styles.sectionTitle}>REST API</Text>
+      <Text style={styles.sectionTitle}>WebDAV (Nextcloud)</Text>

-      <Text style={styles.label}>API URL</Text>
+      <Text style={styles.label}>URL</Text>
      <TextInput
        style={styles.input}
        value={url}
        onChangeText={setUrl}
-        placeholder="https://weegschaal.eddydevink.nl"
+        placeholder="https://nextcloud.eddydevink.nl/remote.php/dav/files/gebruiker/"
        autoCapitalize="none"
        autoCorrect={false}
      />

-      <Text style={styles.label}>Token</Text>
+      <Text style={styles.label}>Gebruikersnaam</Text>
+      <TextInput
+        style={styles.input}
+        value={username}
+        onChangeText={setUsername}
+        autoCapitalize="none"
+        autoCorrect={false}
+      />
+
+      <Text style={styles.label}>Wachtwoord</Text>
      <View style={styles.passwordRow}>
        <TextInput
          style={styles.passwordInput}
-          value={token}
-          onChangeText={setToken}
-          secureTextEntry={!showToken}
+          value={password}
+          onChangeText={setPassword}
+          secureTextEntry={!showPassword}
          autoCapitalize="none"
-          autoCorrect={false}
        />
-        <TouchableOpacity style={styles.eyeButton} onPress={() => setShowToken(!showToken)}>
-          <Text style={styles.eyeIcon}>{showToken ? '👁' : '🔒'}</Text>
+        <TouchableOpacity style={styles.eyeButton} onPress={() => setShowPassword(!showPassword)}>
+          <Text style={styles.eyeIcon}>{showPassword ? '👁' : '👁‍🗨'}</Text>
        </TouchableOpacity>
      </View>

--- a/src/store/measurementStore.ts
+++ b/src/store/measurementStore.ts
@ -1,20 +0,0 @@
-import { Measurement } from '../types'
-import { initDatabase, getAllMeasurements } from '../database/db'
-
-let cache: Measurement[] = []
-let version = 0
-
-export async function refreshCache(): Promise<Measurement[]> {
-  await initDatabase()
-  cache = await getAllMeasurements()
-  version++
-  return cache
-}
-
-export function getCached(): Measurement[] {
-  return cache
-}
-
-export function getVersion(): number {
-  return version
-}
--- a/src/sync/api.ts
+++ b/src/sync/api.ts
@ -1,70 +0,0 @@
-import { Measurement } from '../types'
-import { ApiConfig } from '../types'
-
-export class ApiError extends Error {
-  status: number
-  constructor(message: string, status: number) {
-    super(message)
-    this.name = 'ApiError'
-    this.status = status
-  }
-}
-
-function authHeaders(token: string): Record<string, string> {
-  return {
-    Authorization: `Bearer ${token}`,
-    'Content-Type': 'application/json',
-  }
-}
-
-export type Api = ReturnType<typeof createApi>
-
-export function createApi(config: ApiConfig) {
-  const base = config.url.replace(/\/+$/, '')
-
-  return {
-    async getMeasurements(since?: string): Promise<Measurement[]> {
-      let url = `${base}/api/v1/measurements`
-      if (since) {
-        url += `?since=${encodeURIComponent(since)}`
-      }
-      const response = await fetch(url, {
-        headers: { Authorization: `Bearer ${config.token}` },
-      })
-      if (response.status === 401) {
-        throw new ApiError('Authenticatie mislukt. Controleer je token in Instellingen.', 401)
-      }
-      if (!response.ok) {
-        throw new ApiError(`Serverfout bij ophalen metingen: ${response.status}`, response.status)
-      }
-      return response.json()
-    },
-
-    async createMeasurement(m: Measurement): Promise<void> {
-      const response = await fetch(`${base}/api/v1/measurements`, {
-        method: 'POST',
-        headers: authHeaders(config.token),
-        body: JSON.stringify(m),
-      })
-      if (response.status === 401) {
-        throw new ApiError('Authenticatie mislukt. Controleer je token in Instellingen.', 401)
-      }
-      if (!response.ok) {
-        throw new ApiError(`Serverfout bij opslaan meting: ${response.status}`, response.status)
-      }
-    },
-
-    async deleteMeasurement(id: string): Promise<void> {
-      const response = await fetch(`${base}/api/v1/measurements/${id}`, {
-        method: 'DELETE',
-        headers: { Authorization: `Bearer ${config.token}` },
-      })
-      if (response.status === 401) {
-        throw new ApiError('Authenticatie mislukt. Controleer je token in Instellingen.', 401)
-      }
-      if (!response.ok) {
-        throw new ApiError(`Serverfout bij verwijderen meting: ${response.status}`, response.status)
-      }
-    },
-  }
-}
--- a/src/sync/syncService.ts
+++ b/src/sync/syncService.ts
@ -1,146 +1,139 @@
 import { Measurement } from '../types'
-import {
-  initDatabase,
-  getAllMeasurementsForSync,
-  upsertMeasurement,
-  getPendingRecords,
-  updateSyncStatus,
-  removeMeasurement,
-} from '../database/db'
-import { createApi, ApiError } from './api'
-import * as SecureStore from 'expo-secure-store'
+import { initDatabase, getAllMeasurementsIncludingDeleted, upsertMeasurement } from '../database/db'
+import { getWebDAVConfig } from '../screens/SettingsScreen'
+import { encodeBase64 } from '../utils/base64'

-const LAST_SYNC_KEY = 'weegschaal_last_sync'
+const WEBDAV_PATH = 'weegschaal/measurements.json'
+const SYNC_TIMEOUT_MS = 15_000

-type SyncResult = {
-  pushed: number
-  deleted: number
-  pulled: number
-  errors: string[]
-}
+type SyncResult = { local: number; remote: number; merged: number }

-export function mergeMeasurements(local: Measurement[], remote: any[]): Measurement[] {
-  const localMap = new Map(local.map(m => [m.id, m]))
-  const resultMap = new Map(local.map(m => [m.id, m]))
+export function mergeMeasurements(local: Measurement[], remote: Measurement[]): Measurement[] {
+  const map = new Map<string, Measurement>()

-  for (const r of remote) {
-    const localRec = localMap.get(r.id)
-    const isDeleted = !!(r as any).deleted
-    const localPending =
-      localRec?.syncStatus === 'pending' ||
-      localRec?.syncStatus === 'pending-delete'
+  for (const m of local) {
+    map.set(m.id, m)
+  }

-    if (isDeleted) {
-      if (!localRec || localPending) continue
-      if (new Date(r.updatedAt) > new Date(localRec.updatedAt)) {
-        resultMap.set(r.id, {
-          ...r,
-          syncStatus: 'synced',
-          deletedAt: (r as any).deletedAt || r.updatedAt,
-        } as Measurement)
-      }
-      continue
-    }
-
-    if (localPending) continue
-
-    if (localRec) {
-      if (new Date(r.updatedAt) > new Date(localRec.updatedAt)) {
-        resultMap.set(r.id, { ...r, syncStatus: 'synced' } as Measurement)
-      }
+  for (const m of remote) {
+    const existing = map.get(m.id)
+    if (!existing) {
+      map.set(m.id, { ...m, syncStatus: 'synced' })
    } else {
-      resultMap.set(r.id, { ...r, syncStatus: 'synced' } as Measurement)
+      const remoteNewer = new Date(m.updatedAt) > new Date(existing.updatedAt)
+      if (remoteNewer) {
+        map.set(m.id, { ...m, syncStatus: 'synced' })
+      }
    }
  }

-  return Array.from(resultMap.values())
+  return Array.from(map.values()).filter(m => !m.deleted)
 }

-export async function uploadMeasurement(m: Measurement): Promise<void> {
-  const { getApiConfig } = await import('../screens/SettingsScreen')
-  const config = await getApiConfig()
-  if (!config) throw new Error('Geen API configuratie. Stel deze eerst in in Instellingen.')
-  const api = createApi(config)
-  await api.createMeasurement(m)
-  await updateSyncStatus(m.id, 'synced')
+async function fetchRemote(config: { url: string; username: string; password: string }): Promise<Measurement[]> {
+  const url = `${config.url.replace(/\/+$/, '')}/${WEBDAV_PATH}`
+  const auth = encodeBase64(`${config.username}:${config.password}`)
+
+  const controller = new AbortController()
+  const timer = setTimeout(() => controller.abort(), SYNC_TIMEOUT_MS)
+
+  try {
+    const response = await fetch(url, {
+      headers: { Authorization: `Basic ${auth}` },
+      signal: controller.signal,
+    })
+
+    if (response.status === 404) {
+      return []
+    }
+
+    if (!response.ok) {
+      throw new Error(`WebDAV fetch failed: ${response.status}`)
+    }
+
+    return response.json()
+  } finally {
+    clearTimeout(timer)
+  }
+}
+
+async function createDir(config: { url: string; username: string; password: string }): Promise<void> {
+  const base = config.url.replace(/\/+$/, '')
+  const dirUrl = `${base}/weegschaal`
+  const auth = encodeBase64(`${config.username}:${config.password}`)
+
+  const controller = new AbortController()
+  const timer = setTimeout(() => controller.abort(), SYNC_TIMEOUT_MS)
+
+  try {
+    const response = await fetch(dirUrl, {
+      method: 'MKCOL',
+      headers: { Authorization: `Basic ${auth}` },
+      signal: controller.signal,
+    })
+
+    if (response.status !== 201 && response.status !== 405) {
+      throw new Error(`WebDAV directory create failed: ${response.status}`)
+    }
+  } finally {
+    clearTimeout(timer)
+  }
+}
+
+async function uploadRemote(
+  config: { url: string; username: string; password: string },
+  measurements: Measurement[]
+): Promise<void> {
+  const base = config.url.replace(/\/+$/, '')
+  const url = `${base}/${WEBDAV_PATH}`
+  const body = JSON.stringify(measurements)
+  const auth = encodeBase64(`${config.username}:${config.password}`)
+
+  await createDir(config)
+
+  const controller = new AbortController()
+  const timer = setTimeout(() => controller.abort(), SYNC_TIMEOUT_MS)
+
+  try {
+    const response = await fetch(url, {
+      method: 'PUT',
+      headers: {
+        Authorization: `Basic ${auth}`,
+        'Content-Type': 'application/json',
+      },
+      signal: controller.signal,
+    })
+
+    if (!response.ok) {
+      throw new Error(`WebDAV upload failed: ${response.status}`)
+    }
+  } finally {
+    clearTimeout(timer)
+  }
 }

 export async function syncAll(): Promise<SyncResult> {
-  const { getApiConfig } = await import('../screens/SettingsScreen')
-  const config = await getApiConfig()
-  if (!config) throw new Error('Geen API configuratie. Stel deze eerst in in Instellingen.')
+  const config = await getWebDAVConfig()
+  if (!config) {
+    throw new Error('Geen WebDAV configuratie. Stel deze eerst in in Instellingen.')
+  }

-  const api = createApi(config)
  await initDatabase()

-  const errors: string[] = []
-  let pushed = 0
-  let deleted = 0
-  let pulled = 0
+  const local = await getAllMeasurementsIncludingDeleted()
+  const remote = await fetchRemote(config)

-  // === PUSH phase — outbox first ===
-  const pending = await getPendingRecords()
+  const merged = mergeMeasurements(local, remote)

-  for (const m of pending) {
-    if (m.deletedAt) {
-      try {
-        await api.deleteMeasurement(m.id)
-        await removeMeasurement(m.id)
-        deleted++
-      } catch (e: any) {
-        if (e instanceof ApiError && e.status === 404) {
-          await removeMeasurement(m.id)
-          deleted++
-        } else {
-          errors.push(e?.message ?? 'Delete failed')
-        }
-      }
-    } else {
-      try {
-        await api.createMeasurement(m)
-        await updateSyncStatus(m.id, 'synced')
-        pushed++
-      } catch (e: any) {
-        errors.push(e?.message ?? 'Create failed')
-      }
-    }
+  for (const m of merged) {
+    await upsertMeasurement(m)
  }

-  // === PULL phase — fetch remote changes ===
-  const lastSyncAt = await SecureStore.getItemAsync(LAST_SYNC_KEY)
-  const remote = await api.getMeasurements(lastSyncAt || undefined)
+  await uploadRemote(config, merged)

-  if (remote.length > 0) {
-    const local = await getAllMeasurementsForSync()
-    const merged = mergeMeasurements(local, remote)
-
-    const localMap = new Map(local.map(m => [m.id, m]))
-
-    for (const m of merged) {
-      if (m.deletedAt) {
-        await removeMeasurement(m.id)
-        const localRec = localMap.get(m.id)
-        if (localRec && !localRec.deletedAt) {
-          deleted++
-        }
-      } else {
-        const localRec = localMap.get(m.id)
-        const isNew = !localRec
-        const isUpdated =
-          localRec &&
-          new Date(m.updatedAt).getTime() !==
-            new Date(localRec.updatedAt).getTime()
-
-        if (isNew || isUpdated) {
-          await upsertMeasurement(m)
-          await updateSyncStatus(m.id, 'synced')
-          pulled++
-        }
-      }
-    }
+  return {
+    local: local.filter(m => !m.deleted).length,
+    remote: remote.filter(m => !m.deleted).length,
+    merged: merged.length,
  }
-
-  await SecureStore.setItemAsync(LAST_SYNC_KEY, new Date().toISOString())
-
-  return { pushed, deleted, pulled, errors }
 }
--- a/src/types.ts
+++ b/src/types.ts
@ -1,3 +1,5 @@
+export type SyncStatus = 'local' | 'synced'
+
 export type Measurement = {
  id: string
  weight: number
@ -11,11 +13,12 @@ export type Measurement = {
  measuredAt: string
  createdAt: string
  updatedAt: string
-  syncStatus?: string
-  deletedAt?: string
+  syncStatus: SyncStatus
+  deleted: number
 }

-export type ApiConfig = {
+export type WebDAVConfig = {
  url: string
-  token: string
+  username: string
+  password: string
 }
--- a/src/utils/base64.ts
+++ b/src/utils/base64.ts
@ -0,0 +1,17 @@
+const CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='
+
+export function encodeBase64(str: string): string {
+  const bytes = encodeURIComponent(str).replace(/%([0-9A-F]{2})/g, (_match, p1) => String.fromCharCode(parseInt(p1, 16)))
+  let result = ''
+  let i = 0
+  while (i < bytes.length) {
+    const a = bytes.charCodeAt(i++) || 0
+    const b = bytes.charCodeAt(i++) || 0
+    const c = bytes.charCodeAt(i++) || 0
+    result += CHARS.charAt(a >> 2)
+    result += CHARS.charAt(((a & 3) << 4) | (b >> 4))
+    result += CHARS.charAt(isNaN(b) ? CHARS.length - 1 : ((b & 15) << 2) | (c >> 6))
+    result += CHARS.charAt(isNaN(c) ? CHARS.length - 1 : c & 63)
+  }
+  return result
+}
--- a/src/utils/toast.ts
+++ b/src/utils/toast.ts
@ -1,26 +0,0 @@
-import { Platform, ToastAndroid } from 'react-native'
-
-let _toastQueue: Array<{message: string; duration: number}> = []
-let _showFn: ((message: string, duration: number) => void) | null = null
-
-export function setToastShowFn(fn: (message: string, duration: number) => void) {
-  _showFn = fn
-}
-
-export function showToast(message: string, duration = 3000) {
-  if (_showFn) {
-    _showFn(message, duration)
-    return
-  }
-  if (Platform.OS === 'android') {
-    ToastAndroid.show(message, duration > 2000 ? ToastAndroid.LONG : ToastAndroid.SHORT)
-  }
-}
-
-export function showSuccess(message: string) {
-  showToast(message, 2500)
-}
-
-export function showError(message: string) {
-  showToast(message, 4000)
-}
--- a/tests/database.test.ts
+++ b/tests/database.test.ts
@ -18,6 +18,8 @@ const mockMeasurement: Measurement = {
  measuredAt: '2024-01-01T08:00:00.000Z',
  createdAt: '2024-01-01T08:00:00.000Z',
  updatedAt: '2024-01-01T08:00:00.000Z',
+  syncStatus: 'local',
+  deleted: 0,
 }

 describe('database', () => {
@ -26,7 +28,9 @@ describe('database', () => {
  let insertMeasurement: any
  let getAllMeasurements: any
  let getLatestMeasurement: any
-  let setDeletedAt: any
+  let updateMeasurement: any
+  let deleteMeasurement: any
+  let getAllMeasurementsIncludingDeleted: any

  beforeEach(async () => {
    jest.resetModules()
@ -34,8 +38,8 @@ describe('database', () => {
      openDatabaseAsync: jest.fn(),
    }))
    db = {
-      execAsync: jest.fn(),
-      runAsync: jest.fn(),
+      execAsync: jest.fn(() => Promise.resolve()),
+      runAsync: jest.fn(() => Promise.resolve()),
      getAllAsync: jest.fn(),
    }
    const sqlite = require('expo-sqlite')
@ -45,7 +49,9 @@ describe('database', () => {
    insertMeasurement = mod.insertMeasurement
    getAllMeasurements = mod.getAllMeasurements
    getLatestMeasurement = mod.getLatestMeasurement
-    setDeletedAt = mod.setDeletedAt
+    updateMeasurement = mod.updateMeasurement
+    deleteMeasurement = mod.deleteMeasurement
+    getAllMeasurementsIncludingDeleted = mod.getAllMeasurementsIncludingDeleted
  })

  it('initDatabase creates the measurements table', async () => {
@ -81,15 +87,42 @@ describe('database', () => {
    expect(result!.id).toBe(mockMeasurement.id)
  })

-  it('setDeletedAt sets both deletedAt and updatedAt timestamps', async () => {
+  it('updateMeasurement updates syncStatus', async () => {
    db.runAsync.mockResolvedValue(undefined)
    await initDatabase()
-    await setDeletedAt(mockMeasurement.id)
+    await updateMeasurement(mockMeasurement.id, 'synced')
    expect(db.runAsync).toHaveBeenCalledWith(
-      expect.stringContaining('UPDATE measurements SET deletedAt'),
+      expect.stringContaining('UPDATE measurements'),
+      expect.arrayContaining(['synced', mockMeasurement.id])
+    )
+  })
+
+  it('deleteMeasurement marks measurement as deleted', async () => {
+    db.runAsync.mockResolvedValue(undefined)
+    await initDatabase()
+    await deleteMeasurement(mockMeasurement.id)
+    expect(db.runAsync).toHaveBeenCalledWith(
+      expect.stringContaining('UPDATE measurements SET deleted = 1'),
      expect.arrayContaining([mockMeasurement.id])
    )
-    const args = (db.runAsync as jest.Mock).mock.calls.slice(-1)[0]
-    expect(args[1][0]).toBe(args[1][1])
+  })
+
+  it('getAllMeasurements filters out deleted records', async () => {
+    await initDatabase()
+    await getAllMeasurements()
+    expect(db.getAllAsync).toHaveBeenCalledWith(
+      expect.stringContaining('deleted = 0')
+    )
+  })
+
+  it('getAllMeasurementsIncludingDeleted includes deleted records', async () => {
+    await initDatabase()
+    await getAllMeasurementsIncludingDeleted()
+    expect(db.getAllAsync).toHaveBeenCalledWith(
+      expect.stringContaining('SELECT * FROM measurements')
+    )
+    expect(db.getAllAsync).not.toHaveBeenCalledWith(
+      expect.stringContaining('deleted = 0')
+    )
  })
 })
--- a/tests/syncService.test.ts
+++ b/tests/syncService.test.ts
@ -1,86 +1,102 @@
 import { mergeMeasurements } from '../src/sync/syncService'
 import { Measurement } from '../src/types'

-jest.mock('expo-sqlite', () => ({ openDatabaseAsync: jest.fn() }))
+jest.mock('expo-sqlite', () => ({
+  openDatabaseAsync: jest.fn(),
+}))

-const make = (overrides: Partial<Measurement> = {}): Measurement => ({
-  id: 'id-1', weight: 75, bmi: 22, bodyFatPercentage: 15, fatMass: 10,
-  musclePercentage: 40, muscleMass: 30, visceralFat: 8, bmr: 1600,
-  measuredAt: '2024-06-01T08:00:00.000Z', createdAt: '2024-06-01T08:00:00.000Z',
-  updatedAt: '2024-06-01T08:00:00.000Z', syncStatus: 'synced', ...overrides,
-})
+const base: Measurement = {
+  id: 'id-1',
+  weight: 75,
+  bmi: 22,
+  bodyFatPercentage: 15,
+  fatMass: 10,
+  musclePercentage: 40,
+  muscleMass: 30,
+  visceralFat: 8,
+  bmr: 1600,
+  measuredAt: '2024-06-01T08:00:00.000Z',
+  createdAt: '2024-06-01T08:00:00.000Z',
+  updatedAt: '2024-06-01T08:00:00.000Z',
+  syncStatus: 'local',
+  deleted: 0,
+}

 describe('mergeMeasurements', () => {
-  it('both empty returns empty', () => {
+  it('returns empty array when both are empty', () => {
    expect(mergeMeasurements([], [])).toEqual([])
  })

-  it('local only kept', () => {
-    const r = mergeMeasurements([make()], [])
-    expect(r).toHaveLength(1)
+  it('keeps local items not on remote', () => {
+    const result = mergeMeasurements([base], [])
+    expect(result).toHaveLength(1)
+    expect(result[0].id).toBe('id-1')
  })

-  it('remote only kept', () => {
-    const r = mergeMeasurements([], [make({ id: 'r1' })])
-    expect(r).toHaveLength(1)
-    expect(r[0].id).toBe('r1')
+  it('keeps remote items not on local', () => {
+    const remote = { ...base, syncStatus: 'synced' as const }
+    const result = mergeMeasurements([], [remote])
+    expect(result).toHaveLength(1)
+    expect(result[0].id).toBe('id-1')
  })

-  it('last-writer-wins: remote newer', () => {
-    const local = make({ weight: 75, updatedAt: '2024-06-02T08:00:00.000Z' })
-    const remote = make({ weight: 76, updatedAt: '2024-06-03T08:00:00.000Z' })
-    const r = mergeMeasurements([local], [remote])
-    expect(r[0].weight).toBe(76)
+  it('picks the newer version when both have same id', () => {
+    const local = { ...base, weight: 75, updatedAt: '2024-06-02T08:00:00.000Z' }
+    const remote = { ...base, weight: 76, updatedAt: '2024-06-03T08:00:00.000Z' }
+    const result = mergeMeasurements([local], [remote])
+    expect(result).toHaveLength(1)
+    expect(result[0].weight).toBe(76)
  })

-  it('last-writer-wins: local newer', () => {
-    const local = make({ weight: 77, updatedAt: '2024-06-04T08:00:00.000Z' })
-    const remote = make({ weight: 76, updatedAt: '2024-06-03T08:00:00.000Z' })
-    const r = mergeMeasurements([local], [remote])
-    expect(r[0].weight).toBe(77)
+  it('picks local when local is newer', () => {
+    const local = { ...base, weight: 77, updatedAt: '2024-06-04T08:00:00.000Z' }
+    const remote = { ...base, weight: 76, updatedAt: '2024-06-03T08:00:00.000Z' }
+    const result = mergeMeasurements([local], [remote])
+    expect(result).toHaveLength(1)
+    expect(result[0].weight).toBe(77)
  })

-  it('remote deleted wins over synced local', () => {
-    const local = make({ updatedAt: '2024-06-01T08:00:00.000Z' })
-    const remote: any = { ...make({ updatedAt: '2024-06-03T08:00:00.000Z' }), deleted: true }
-    const r = mergeMeasurements([local], [remote])
-    expect(r[0].deletedAt).toBe('2024-06-03T08:00:00.000Z')
+  it('filters out locally deleted items even if present on remote', () => {
+    const local = { ...base, deleted: 1 as const, updatedAt: '2024-06-05T08:00:00.000Z' }
+    const remote = { ...base, deleted: 0 as const, updatedAt: '2024-06-03T08:00:00.000Z' }
+    const result = mergeMeasurements([local], [remote])
+    expect(result).toHaveLength(0)
  })

-  it('local synced wins over older remote deleted', () => {
-    const local = make({ updatedAt: '2024-06-03T08:00:00.000Z' })
-    const remote: any = { ...make({ updatedAt: '2024-06-01T08:00:00.000Z' }), deleted: true }
-    const r = mergeMeasurements([local], [remote])
-    expect(r[0].deletedAt).toBeUndefined()
+  it('filters out remotely deleted items when remote is newer', () => {
+    const local = { ...base, deleted: 0 as const, updatedAt: '2024-06-04T08:00:00.000Z' }
+    const remote = { ...base, deleted: 1 as const, updatedAt: '2024-06-05T08:00:00.000Z' }
+    const result = mergeMeasurements([local], [remote])
+    expect(result).toHaveLength(0)
  })

-  it('local pending-delete wins over remote deleted', () => {
-    const local = make({ updatedAt: '2024-06-01T08:00:00.000Z', syncStatus: 'pending-delete', deletedAt: '2024-06-05T08:00:00.000Z' })
-    const remote: any = { ...make({ updatedAt: '2024-06-03T08:00:00.000Z' }), deleted: true }
-    const r = mergeMeasurements([local], [remote])
-    expect(r[0].syncStatus).toBe('pending-delete')
-    expect(r[0].deletedAt).toBe('2024-06-05T08:00:00.000Z')
+  it('keeps local active item when local is newer than remote deletion', () => {
+    const local = { ...base, deleted: 0 as const, weight: 78, updatedAt: '2024-06-06T08:00:00.000Z' }
+    const remote = { ...base, deleted: 1 as const, updatedAt: '2024-06-05T08:00:00.000Z' }
+    const result = mergeMeasurements([local], [remote])
+    expect(result).toHaveLength(1)
+    expect(result[0].weight).toBe(78)
  })

-  it('local pending wins over remote newer', () => {
-    const local = make({ weight: 75, updatedAt: '2024-06-01T08:00:00.000Z', syncStatus: 'pending' })
-    const remote: any = { ...make({ weight: 76, updatedAt: '2024-06-03T08:00:00.000Z' }) }
-    const r = mergeMeasurements([local], [remote])
-    expect(r[0].weight).toBe(75)
-    expect(r[0].syncStatus).toBe('pending')
+  it('keeps active item when local deleted is older than remote active', () => {
+    const local = { ...base, deleted: 1 as const, updatedAt: '2024-06-01T08:00:00.000Z' }
+    const remote = { ...base, deleted: 0 as const, updatedAt: '2024-06-05T08:00:00.000Z', syncStatus: 'synced' as const }
+    const result = mergeMeasurements([local], [remote])
+    expect(result).toHaveLength(1)
+    expect(result[0].weight).toBe(75)
  })

-  it('remote deleted with no local record is skipped', () => {
-    const remote: any = { ...make({ id: 'r1', updatedAt: '2024-06-03T08:00:00.000Z' }), deleted: true }
-    const r = mergeMeasurements([], [remote])
-    expect(r).toHaveLength(0)
-  })
+  it('merges multiple active and deleted items correctly', () => {
+    const localActive = { ...base, id: 'a', weight: 70, updatedAt: '2024-06-05T08:00:00.000Z' }
+    const localDeleted = { ...base, id: 'b', weight: 80, deleted: 1 as const, updatedAt: '2024-06-05T08:00:00.000Z' }
+    const remoteActive = { ...base, id: 'c', weight: 90, updatedAt: '2024-06-03T08:00:00.000Z', syncStatus: 'synced' as const }
+    const remoteDeleted = { ...base, id: 'd', weight: 100, deleted: 1 as const, updatedAt: '2024-06-05T08:00:00.000Z' }

-  it('local without syncStatus treated as synced', () => {
-    const local = make({ weight: 75, updatedAt: '2024-06-01T08:00:00.000Z' })
-    delete local.syncStatus
-    const remote = make({ weight: 76, updatedAt: '2024-06-03T08:00:00.000Z' })
-    const r = mergeMeasurements([local], [remote])
-    expect(r[0].weight).toBe(76)
+    const result = mergeMeasurements(
+      [localActive, localDeleted],
+      [remoteActive, remoteDeleted]
+    )
+    expect(result).toHaveLength(2)
+    expect(result.map(m => m.id).sort()).toEqual(['a', 'c'])
  })
 })
--- a/upgrade.md
+++ b/upgrade.md
@ -1,140 +0,0 @@
-# Upgrade: REST API sync i.p.v. WebDAV
-
-Vervang WebDAV-sync door een eigen REST API op `weegschaal.eddydevink.nl`,
-met MariaDB-backend en Bearer token-authenticatie. Incrementele sync i.p.v. volledig bestand.
-
-## Fase 1 — Server-side: PHP API
-
-### Subdomein & nginx
-
- DNS: `weegschaal.eddydevink.nl` → zelfde server als `git.eddydevink.nl`
- nginx server block in `/etc/nginx/conf.d/weegschaal-api.conf`
- SSL via Let's Encrypt (`sudo certbot`)
- Document root: `/usr/share/nginx/html/weegschaal-api/`
-
-### MariaDB
-
-```sql
-CREATE DATABASE weegschaal;
-CREATE USER 'weegschaal'@'localhost' IDENTIFIED BY '<random>';
-GRANT ALL ON weegschaal.* TO 'weegschaal'@'localhost';
-
-CREATE TABLE users (
-  id INT AUTO_INCREMENT PRIMARY KEY,
-  name VARCHAR(255) NOT NULL,
-  created_at DATETIME DEFAULT CURRENT_TIMESTAMP
-);
-
-CREATE TABLE auth_tokens (
-  id INT AUTO_INCREMENT PRIMARY KEY,
-  user_id INT NOT NULL REFERENCES users(id),
-  token VARCHAR(64) NOT NULL UNIQUE,
-  description VARCHAR(255),
-  created_at DATETIME DEFAULT CURRENT_TIMESTAMP
-);
-
-CREATE TABLE measurements (
-  id VARCHAR(36) NOT NULL,
-  user_id INT NOT NULL,
-  weight DECIMAL(5,2) NOT NULL,
-  bmi DECIMAL(4,1) NOT NULL,
-  body_fat_percentage DECIMAL(4,1) NOT NULL,
-  fat_mass DECIMAL(5,2) NOT NULL,
-  muscle_percentage DECIMAL(4,1) NOT NULL,
-  muscle_mass DECIMAL(5,2) NOT NULL,
-  visceral_fat TINYINT NOT NULL,
-  bmr DECIMAL(6,1) NOT NULL,
-  measured_at DATE NOT NULL,
-  created_at DATETIME NOT NULL,
-  updated_at DATETIME NOT NULL,
-  PRIMARY KEY (user_id, id),
-  INDEX idx_updated_at (user_id, updated_at)
-);
-```
-
-### PHP API endpoints (Slim Framework via Composer)
-
-| Methode | Pad | Beschrijving |
-|---------|-----|-------------|
-| `POST` | `/api/v1/auth/register` | (later) Nieuwe gebruiker |
-| `POST` | `/api/v1/auth/tokens` | (later) Nieuwe token aanmaken |
-| `GET` | `/api/v1/measurements` | Alle metingen (of `?since=ISO` voor delta) |
-| `POST` | `/api/v1/measurements` | Nieuwe meting aanmaken |
-| `PUT` | `/api/v1/measurements/:id` | Meting bijwerken |
-| `DELETE` | `/api/v1/measurements/:id` | Meting verwijderen |
-
-Authenticatie: `Authorization: Bearer <token>`, gevalideerd tegen `auth_tokens`-tabel.
-
-Sync-logica server:
- `GET /api/v1/measurements?since=2025-01-01T12:00:00Z` → alleen metingen met `updated_at > since`
- Bij PUT/DELETE: controleer `updated_at` client, bij conflict → HTTP 409 met server-versie
-
-### Bestandsstructuur API
-
-```
-/usr/share/nginx/html/weegschaal-api/
-├── composer.json
-├── public/
-│   └── index.php              ← Entry point, routing
-├── src/
-│   ├── Database.php           ← PDO singleton
-│   ├── Auth.php               ← Token validation middleware
-│   ├── Measurements.php       ← CRUD + sync queries
-│   └── helpers.php
-└── config.php                 ← DB credentials (uit .env of env vars)
-```
-
-## Fase 2 — Client-side: App aanpassen
-
-### Types (`src/types.ts`)
-
- Vervang `WebDAVConfig` door `ApiConfig { url: string; token: string }`
- Verwijder `SyncStatus` (niet meer nodig — sync status volgt uit `updatedAt`)
-
-### SettingsScreen (`src/screens/SettingsScreen.tsx`)
-
- Vervang URL/username/password door API-URL + token (met oogje)
- Opslaan → SecureStore
- Wissen → SecureStore verwijderen
- 'Nu synchroniseren' knop blijft
-
-### Nieuwe module `src/sync/api.ts`
-
-```typescript
-const api = (config: ApiConfig) => ({
-  getMeasurements: (since?: string) => GET /api/v1/measurements?since=...
-  createMeasurement: (m: Measurement) => POST /api/v1/measurements
-  updateMeasurement: (m: Measurement) => PUT /api/v1/measurements/:id
-  deleteMeasurement: (id: string) => DELETE /api/v1/measurements/:id
-})
-```
-
-### syncService.ts — volledig herschreven
-
-Nieuwe sync-flow:
-
-| Stap | Actie |
-|------|-------|
-| 1 | Lees lokale `lastSyncAt` (uit SecureStore) |
-| 2 | `GET ?since=lastSyncAt` → alleen wijzigingen ophalen |
-| 3 | Upsert remote wijzigingen lokaal (last-writer-wins) |
-| 4 | Voor elke lokale meting met `updatedAt > lastSyncAt`: push naar API |
-| 5 | Update `lastSyncAt` naar server-tijd |
-
-Bij opslaan in `NewMeasurementScreen`:
-1. Direct naar lokale SQLite (offline-first)
-2. Direct erna: push naar API (async, niet-blokkerend via `Promise.allSettled`)
-
-## Fase 3 — Migratie
-
-Eerste keer na API-setup:
-1. App stuurt alle lokale metingen naar de API (1-voor-1 via POST)
-2. Alle metingen nu in MariaDB
-3. Vanaf dan: alleen delta-sync
-
-## Benodigde server-toegang
-
- SSH naar nextcloud (`aiaiaiaiagent@nextcloud`) — key werkte niet
- `sudo -A mysql` voor DB + user aanmaken
- nginx config aanpassen (`/etc/nginx/conf.d/`)
- DNS controleren voor subdomein
--- a/weegschaal-app.jpeg
+++ b/weegschaal-app.jpeg