diff --git a/apps/api/prisma/migrations/20261026120000_drop_tab_snapshots/migration.sql b/apps/api/prisma/migrations/20261026120000_drop_tab_snapshots/migration.sql
new file mode 100644
index 0000000..5275970
--- /dev/null
+++ b/apps/api/prisma/migrations/20261026120000_drop_tab_snapshots/migration.sql
@@ -0,0 +1,4 @@
+-- The terminals used to own the tabs and report them as snapshots; the server holds them in "Tab" now
+DROP TABLE "OpenTabSnapshot";
+
+DROP TABLE "TabOwnership";
diff --git a/apps/api/prisma/schema.prisma b/apps/api/prisma/schema.prisma
index 6ee63b6..d6f24b0 100644
--- a/apps/api/prisma/schema.prisma
+++ b/apps/api/prisma/schema.prisma
@@ -15,7 +15,6 @@ model Venue {
 
   devices          Device[]
   clientUsers      ClientUser[]
-  tabOwnerships    TabOwnership[]
   remoteCommands   RemoteCommand[]
   auditLogs        AuditLog[]
   regCodes         RegistrationCode[]
@@ -43,9 +42,7 @@ model Device {
   revokedAt      DateTime?
   createdAt      DateTime  @default(now())
 
-  venue          Venue             @relation(fields: [venueId], references: [id])
-  tabSnapshots   OpenTabSnapshot[]
-  tabOwnerships  TabOwnership[]
+  venue          Venue           @relation(fields: [venueId], references: [id])
   remoteCommands RemoteCommand[]
   tabEvents      TabEvent[]
   settlements    Settlement[]
@@ -81,38 +78,6 @@ model RegistrationCode {
   @@index([venueId])
 }
 
-model OpenTabSnapshot {
-  id           String   @id @default(uuid())
-  deviceId     String
-  tabId        String
-  customerName String
-  version      Int
-  totalInCents Int
-  itemCount    Int
-  // The tab's lines as reported by the terminal: [{ productName, quantity, unitPriceInCents }].
-  // Null for terminals running an app version that doesn't report them.
-  items        Json?
-  reportedAt   DateTime
-
-  device Device @relation(fields: [deviceId], references: [id])
-
-  @@unique([deviceId, tabId])
-  @@index([deviceId])
-  @@index([tabId, reportedAt])
-}
-
-model TabOwnership {
-  tabId          String
-  venueId        String
-  deviceId       String
-  lastReportedAt DateTime
-
-  venue  Venue  @relation(fields: [venueId], references: [id])
-  device Device @relation(fields: [deviceId], references: [id])
-
-  @@id([venueId, tabId])
-}
-
 // A request from the dashboard. close_tab used to be executed by the owning terminal; the server now settles
 // the tab itself and records the command as completed right away, for the history.
 model RemoteCommand {
diff --git a/apps/api/prisma/seed.js b/apps/api/prisma/seed.js
index 563928e..c34d47f 100644
--- a/apps/api/prisma/seed.js
+++ b/apps/api/prisma/seed.js
@@ -5,13 +5,41 @@ const crypto = require('crypto');
 
 const prisma = new PrismaClient();
 
+// One line with itemCount units, priced so the tab adds up to about totalInCents
+async function createTab(venueId, tab) {
+  const lineId = uuidv4();
+  const addedAt = tab.reportedAt.toISOString();
+  await prisma.tab.create({
+    data: {
+      venueId,
+      id: tab.tabId,
+      customerName: tab.customerName,
+      openedAt: tab.reportedAt,
+      version: tab.version,
+      lines: [{
+        id: lineId,
+        productId: null,
+        productName: 'Pils',
+        unitPriceInCents: Math.round(tab.totalInCents / tab.itemCount),
+        units: Array.from({ length: tab.itemCount }, (_, i) => ({ id: `${lineId}:${i}`, addedAt, removedAt: null })),
+      }],
+    },
+  });
+}
+
 async function main() {
   console.log('Seeding database...');
 
   await prisma.auditLog.deleteMany();
+  await prisma.tabEvent.deleteMany();
+  await prisma.tabReminder.deleteMany();
+  await prisma.plannedTab.deleteMany();
   await prisma.remoteCommand.deleteMany();
-  await prisma.openTabSnapshot.deleteMany();
-  await prisma.tabOwnership.deleteMany();
+  await prisma.settlement.deleteMany();
+  await prisma.tab.deleteMany();
+  await prisma.stockAdjustment.deleteMany();
+  await prisma.product.deleteMany();
+  await prisma.productImage.deleteMany();
   await prisma.refreshToken.deleteMany();
   await prisma.registrationCode.deleteMany();
   await prisma.device.deleteMany();
@@ -92,12 +120,7 @@ async function main() {
   ];
 
   for (const tab of tabsData) {
-    await prisma.tabOwnership.create({
-      data: { tabId: tab.tabId, venueId, deviceId: device1Id, lastReportedAt: tab.reportedAt },
-    });
-    await prisma.openTabSnapshot.create({
-      data: { deviceId: device1Id, tabId: tab.tabId, customerName: tab.customerName, version: tab.version, totalInCents: tab.totalInCents, itemCount: tab.itemCount, reportedAt: tab.reportedAt },
-    });
+    await createTab(venueId, tab);
   }
 
   const staleTabs = [
@@ -106,15 +129,10 @@ async function main() {
   ];
 
   for (const tab of staleTabs) {
-    await prisma.tabOwnership.create({
-      data: { tabId: tab.tabId, venueId, deviceId: device2Id, lastReportedAt: tab.reportedAt },
-    });
-    await prisma.openTabSnapshot.create({
-      data: { deviceId: device2Id, tabId: tab.tabId, customerName: tab.customerName, version: tab.version, totalInCents: tab.totalInCents, itemCount: tab.itemCount, reportedAt: tab.reportedAt },
-    });
+    await createTab(venueId, tab);
   }
 
-  console.log('Created 6 open tabs across 2 devices');
+  console.log('Created 6 open tabs');
 
   const now = new Date();
 
diff --git a/apps/api/prisma/seed.ts b/apps/api/prisma/seed.ts
index 432c861..021e860 100644
--- a/apps/api/prisma/seed.ts
+++ b/apps/api/prisma/seed.ts
@@ -10,9 +10,15 @@ async function main() {
 
   // Clean existing data so seed is idempotent
   await prisma.auditLog.deleteMany();
+  await prisma.tabEvent.deleteMany();
+  await prisma.tabReminder.deleteMany();
+  await prisma.plannedTab.deleteMany();
   await prisma.remoteCommand.deleteMany();
-  await prisma.openTabSnapshot.deleteMany();
-  await prisma.tabOwnership.deleteMany();
+  await prisma.settlement.deleteMany();
+  await prisma.tab.deleteMany();
+  await prisma.stockAdjustment.deleteMany();
+  await prisma.product.deleteMany();
+  await prisma.productImage.deleteMany();
   await prisma.refreshToken.deleteMany();
   await prisma.registrationCode.deleteMany();
   await prisma.device.deleteMany();
@@ -83,11 +89,24 @@ async function main() {
   ];
 
   for (const tab of tabsData) {
-    await prisma.tabOwnership.create({
-      data: { tabId: tab.tabId, venueId, deviceId, lastReportedAt: tab.reportedAt },
-    });
-    await prisma.openTabSnapshot.create({
-      data: { deviceId, tabId: tab.tabId, customerName: tab.customerName, version: tab.version, totalInCents: tab.totalInCents, itemCount: tab.itemCount, reportedAt: tab.reportedAt },
+    // One line with itemCount units, priced so the tab adds up to about totalInCents
+    const lineId = uuidv4();
+    const addedAt = tab.reportedAt.toISOString();
+    await prisma.tab.create({
+      data: {
+        venueId,
+        id: tab.tabId,
+        customerName: tab.customerName,
+        openedAt: tab.reportedAt,
+        version: tab.version,
+        lines: [{
+          id: lineId,
+          productId: null,
+          productName: 'Pils',
+          unitPriceInCents: Math.round(tab.totalInCents / tab.itemCount),
+          units: Array.from({ length: tab.itemCount }, (_, i) => ({ id: `${lineId}:${i}`, addedAt, removedAt: null })),
+        }],
+      },
     });
   }
 
diff --git a/apps/api/prisma/setup.js b/apps/api/prisma/setup.js
index 1962dad..6781145 100644
--- a/apps/api/prisma/setup.js
+++ b/apps/api/prisma/setup.js
@@ -35,8 +35,11 @@ async function main() {
     await tx.tabReminder.deleteMany();
     await tx.plannedTab.deleteMany();
     await tx.remoteCommand.deleteMany();
-    await tx.openTabSnapshot.deleteMany();
-    await tx.tabOwnership.deleteMany();
+    await tx.settlement.deleteMany();
+    await tx.tab.deleteMany();
+    await tx.stockAdjustment.deleteMany();
+    await tx.product.deleteMany();
+    await tx.productImage.deleteMany();
     await tx.refreshToken.deleteMany();
     await tx.registrationCode.deleteMany();
     await tx.device.deleteMany();