diff --git a/Dockerfile b/Dockerfile
index 1f3b557..c7cc797 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,9 +22,6 @@ RUN cd apps/api && npx prisma generate
 RUN pnpm --filter @kooltab/api run build
 RUN pnpm --filter @kooltab/dashboard run build
 
-# Compile seed script to JS (needed for production seeding)
-RUN pnpm exec tsc apps/api/prisma/seed.ts --outDir apps/api/prisma --skipLibCheck --module commonjs --esModuleInterop true --resolveJsonModule true
-
 # ---- Production API image ----
 FROM node:20-alpine AS api
 RUN npm install -g pnpm
diff --git a/apps/api/prisma/seed.js b/apps/api/prisma/seed.js
new file mode 100644
index 0000000..86b76fe
--- /dev/null
+++ b/apps/api/prisma/seed.js
@@ -0,0 +1,155 @@
+const bcrypt = require('bcrypt');
+const { PrismaClient } = require('@prisma/client');
+const { v4: uuidv4 } = require('uuid');
+const crypto = require('crypto');
+
+const prisma = new PrismaClient();
+
+async function main() {
+  console.log('Seeding database...');
+
+  await prisma.auditLog.deleteMany();
+  await prisma.remoteCommand.deleteMany();
+  await prisma.openTabSnapshot.deleteMany();
+  await prisma.tabOwnership.deleteMany();
+  await prisma.refreshToken.deleteMany();
+  await prisma.registrationCode.deleteMany();
+  await prisma.device.deleteMany();
+  await prisma.clientUser.deleteMany();
+  await prisma.venue.deleteMany();
+  console.log('Cleared existing data');
+
+  const venueId = uuidv4();
+  await prisma.venue.create({
+    data: { id: venueId, name: 'KoolTab Demo Bar' },
+  });
+  console.log(`Created venue: KoolTab Demo Bar (${venueId})`);
+
+  const adminHash = await bcrypt.hash('Admin123!', 10);
+  await prisma.clientUser.create({
+    data: {
+      id: uuidv4(),
+      venueId,
+      email: 'admin@example.com',
+      passwordHash: adminHash,
+      name: 'Eigenaar',
+      role: 'admin',
+    },
+  });
+  console.log('Created admin user: admin@example.com / Admin123!');
+
+  const viewerHash = await bcrypt.hash('Viewer123!', 10);
+  await prisma.clientUser.create({
+    data: {
+      id: uuidv4(),
+      venueId,
+      email: 'viewer@example.com',
+      passwordHash: viewerHash,
+      name: 'Bartender',
+      role: 'viewer',
+    },
+  });
+  console.log('Created viewer user: viewer@example.com / Viewer123!');
+
+  const device1Id = uuidv4();
+  const device2Id = uuidv4();
+
+  const token1 = 'dev_' + crypto.randomBytes(48).toString('base64url');
+  const token2 = 'dev_' + crypto.randomBytes(48).toString('base64url');
+
+  await prisma.device.create({
+    data: {
+      id: device1Id,
+      venueId,
+      name: 'Bar terminal 1',
+      tokenHash: crypto.createHash('sha256').update(token1).digest('hex'),
+      tokenPrefix: token1.substring(0, 8),
+      tokenExpiresAt: new Date(Date.now() + 90 * 24 * 60 * 60 * 1000),
+      lastSeenAt: new Date(Date.now() - 1 * 60 * 1000),
+    },
+  });
+
+  await prisma.device.create({
+    data: {
+      id: device2Id,
+      venueId,
+      name: 'Bar terminal 2',
+      tokenHash: crypto.createHash('sha256').update(token2).digest('hex'),
+      tokenPrefix: token2.substring(0, 8),
+      tokenExpiresAt: new Date(Date.now() + 90 * 24 * 60 * 60 * 1000),
+      lastSeenAt: new Date(Date.now() - 15 * 60 * 1000),
+    },
+  });
+
+  console.log(`Created device: Bar terminal 1 (${device1Id})`);
+  console.log(`Created device: Bar terminal 2 (${device2Id})`);
+
+  const tabsData = [
+    { tabId: uuidv4(), customerName: 'Jan', version: 5, totalInCents: 2450, itemCount: 3, reportedAt: new Date(Date.now() - 2 * 60 * 1000) },
+    { tabId: uuidv4(), customerName: 'Marie', version: 3, totalInCents: 1800, itemCount: 2, reportedAt: new Date(Date.now() - 5 * 60 * 1000) },
+    { tabId: uuidv4(), customerName: 'Thomas', version: 7, totalInCents: 4200, itemCount: 5, reportedAt: new Date(Date.now() - 3 * 60 * 1000) },
+    { tabId: uuidv4(), customerName: 'Lisa', version: 2, totalInCents: 900, itemCount: 1, reportedAt: new Date(Date.now() - 4 * 60 * 1000) },
+  ];
+
+  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 },
+    });
+  }
+
+  const staleTabs = [
+    { tabId: uuidv4(), customerName: 'Emma', version: 4, totalInCents: 3200, itemCount: 4, reportedAt: new Date(Date.now() - 16 * 60 * 1000) },
+    { tabId: uuidv4(), customerName: 'David', version: 1, totalInCents: 1500, itemCount: 2, reportedAt: new Date(Date.now() - 20 * 60 * 1000) },
+  ];
+
+  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 },
+    });
+  }
+
+  console.log('Created 6 open tabs across 2 devices');
+
+  const now = new Date();
+
+  await prisma.remoteCommand.create({
+    data: { id: uuidv4(), venueId, deviceId: device1Id, targetTabId: tabsData[1].tabId, type: 'close_tab', expectedVersion: 3, paymentMethod: 'cash', requestedBy: 'Eigenaar', status: 'completed', result: 'Tab closed successfully', acknowledgedAt: new Date(now.getTime() - 30 * 60 * 1000), createdAt: new Date(now.getTime() - 35 * 60 * 1000), expiresAt: new Date(now.getTime() + 23 * 60 * 60 * 1000) },
+  });
+
+  await prisma.remoteCommand.create({
+    data: { id: uuidv4(), venueId, deviceId: device1Id, targetTabId: tabsData[0].tabId, type: 'close_tab', expectedVersion: 5, paymentMethod: 'payconiq', requestedBy: 'Eigenaar', status: 'pending', createdAt: new Date(now.getTime() - 5 * 60 * 1000), expiresAt: new Date(now.getTime() + 23 * 60 * 60 * 1000) },
+  });
+
+  await prisma.remoteCommand.create({
+    data: { id: uuidv4(), venueId, deviceId: device2Id, targetTabId: staleTabs[0].tabId, type: 'close_tab', expectedVersion: 4, paymentMethod: 'payment_pending', requestedBy: 'Bartender', status: 'failed', result: 'Tab could not be closed', acknowledgedAt: new Date(now.getTime() - 60 * 60 * 1000), createdAt: new Date(now.getTime() - 65 * 60 * 1000), expiresAt: new Date(now.getTime() + 23 * 60 * 60 * 1000) },
+  });
+
+  await prisma.remoteCommand.create({
+    data: { id: uuidv4(), venueId, deviceId: device1Id, targetTabId: tabsData[2].tabId, type: 'close_tab', expectedVersion: 7, paymentMethod: 'cash', requestedBy: 'Eigenaar', status: 'conflict', result: 'Version mismatch: expected 7, got 8', acknowledgedAt: new Date(now.getTime() - 2 * 60 * 60 * 1000), createdAt: new Date(now.getTime() - 2 * 60 * 60 * 1000 - 5 * 60 * 1000), expiresAt: new Date(now.getTime() + 22 * 60 * 60 * 1000) },
+  });
+
+  console.log('Created sample commands: completed, pending, failed, conflict');
+
+  await prisma.auditLog.create({
+    data: { id: uuidv4(), venueId, actorType: 'client_user', actorId: 'admin', action: 'command_created', details: JSON.stringify({ commandId: 'sample', tabId: tabsData[0].tabId }) },
+  });
+
+  console.log('Seeding complete!');
+  console.log('');
+  console.log('Demo credentials:');
+  console.log('  Admin: admin@example.com / Admin123!');
+  console.log('  Viewer: viewer@example.com / Viewer123!');
+  console.log(`\nDevice tokens (for simulator):`);
+  console.log(`  Bar terminal 1: ${token1}`);
+  console.log(`  Bar terminal 2: ${token2}`);
+}
+
+main()
+  .catch(console.error)
+  .finally(() => prisma.$disconnect());
\ No newline at end of file