diff --git a/package.json b/package.json
index 4c11d9c..bd1632b 100644
--- a/package.json
+++ b/package.json
@@ -29,9 +29,12 @@
     "prestart": "npm run prebuild",
     "release": "np --no-tests --no-publish",
     "lint": "ng lint",
+    "postlint": "npm run lint:sqlite && npm run test:sqlite",
+    "lint:sqlite": "eslint vitest.sqlite.config.ts \"tests/**/*.ts\"",
     "test:watch": "ng test",
     "test:actions": "node --test .github/actions/classify-mobile-release/classify-mobile-release.spec.mjs && vitest run --config .github/actions/vitest.config.mjs",
     "test:offline-types:nonstrict": "npm run prebuild:kit && tsc -p projects/kit/offline/tsconfig.nonstrict-null.json",
+    "test:sqlite": "npm run test:sqlite-concurrency && vitest run --config vitest.sqlite.config.ts",
     "test:sqlite-concurrency": "node --test projects/kit/offline/src/lib/sqlite-concurrency.node.test.mjs",
     "test:package-consumer": "node scripts/test-package-consumer.mjs",
     "e2e": "playwright test",
diff --git a/tests/sqlite-offline-repository.node.spec.ts b/tests/sqlite-offline-repository.node.spec.ts
new file mode 100644
index 0000000..6c98ff1
--- /dev/null
+++ b/tests/sqlite-offline-repository.node.spec.ts
@@ -0,0 +1,324 @@
+import '@angular/compiler';
+import { createEnvironmentInjector, Injector, type EnvironmentInjector } from '@angular/core';
+import { DatabaseSync, type SQLInputValue } from 'node:sqlite';
+import { afterEach, describe, expect, it } from 'vitest';
+import { OFFLINE_KIT_OPTIONS } from '../projects/kit/offline/src/lib/offline-kit-options';
+import { defineOfflineReplicaSchema, defineReplicaEntity, generatedId, text } from '../projects/kit/offline/src/lib/offline-replica-schema';
+import type { OfflineCommand, OfflineReplicaRow } from '../projects/kit/offline/src/lib/offline-repository';
+import {
+  COMMUNITY_SQLITE,
+  type CommunitySqliteDriver,
+  SqliteOfflineRepository,
+} from '../projects/kit/offline/src/lib/sqlite-offline-repository';
+
+const itemEntity = defineReplicaEntity<{ id: number; title: string }>()({
+  table: 'contract_items',
+  sourceKey: 'contract_items',
+  scope: 'partition',
+  fields: { id: generatedId('integer'), title: text() },
+});
+
+const replicaSchema = defineOfflineReplicaSchema({ version: 1, entities: [itemEntity], migrations: [] });
+
+/** Test-only adapter that runs production repository SQL against Node's SQLite engine. */
+class NodeSqliteDriver implements CommunitySqliteDriver {
+  readonly #databases = new Map<string, DatabaseSync>();
+
+  async open(options: { databaseName: string }): Promise<{ databaseId: string }> {
+    if (!this.#databases.has(options.databaseName)) {
+      this.#databases.set(options.databaseName, new DatabaseSync(':memory:'));
+    }
+    return { databaseId: options.databaseName };
+  }
+
+  async executeBatch(options: { databaseId: string; statements: readonly string[] }): Promise<void> {
+    this.#database(options.databaseId).exec(options.statements.join(';\n'));
+  }
+
+  async execute(options: { databaseId: string; statement: string; values?: (string | number | null)[] }): Promise<void> {
+    this.#database(options.databaseId)
+      .prepare(options.statement)
+      .run(...this.#values(options.values));
+  }
+
+  async query(options: { databaseId: string; statement: string; values?: (string | number | null)[] }): Promise<{ rows: unknown[] }> {
+    const rows = this.#database(options.databaseId)
+      .prepare(options.statement)
+      .all(...this.#values(options.values));
+    return { rows };
+  }
+
+  async beginTransaction(options: { databaseId: string }): Promise<void> {
+    this.#database(options.databaseId).exec('BEGIN IMMEDIATE');
+  }
+
+  async commitTransaction(options: { databaseId: string }): Promise<void> {
+    this.#database(options.databaseId).exec('COMMIT');
+  }
+
+  async rollbackTransaction(options: { databaseId: string }): Promise<void> {
+    this.#database(options.databaseId).exec('ROLLBACK');
+  }
+
+  close(): void {
+    for (const database of this.#databases.values()) database.close();
+    this.#databases.clear();
+  }
+
+  #database(databaseId: string): DatabaseSync {
+    const database = this.#databases.get(databaseId);
+    if (!database) throw new Error(`SQLite database "${databaseId}" is not open.`);
+    return database;
+  }
+
+  #values(values: (string | number | null)[] | undefined): SQLInputValue[] {
+    return values ?? [];
+  }
+}
+
+describe('SqliteOfflineRepository real SQLite contract', () => {
+  let driver: NodeSqliteDriver | null = null;
+  let injector: EnvironmentInjector | null = null;
+
+  afterEach(() => {
+    injector?.destroy();
+    injector = null;
+    driver?.close();
+    driver = null;
+  });
+
+  function createRepository(): SqliteOfflineRepository {
+    driver = new NodeSqliteDriver();
+    injector = createEnvironmentInjector(
+      [
+        SqliteOfflineRepository,
+        { provide: COMMUNITY_SQLITE, useValue: driver },
+        {
+          provide: OFFLINE_KIT_OPTIONS,
+          useValue: { databaseName: 'real-sqlite-contract', databaseEncryption: false, replicaSchema },
+        },
+      ],
+      Injector.NULL as EnvironmentInjector,
+    );
+    return injector.get(SqliteOfflineRepository);
+  }
+
+  function outboxCommand(overrides: Partial<OfflineCommand> = {}): OfflineCommand {
+    return {
+      userId: 7,
+      scopeId: 'demo',
+      commandId: 'command-1',
+      aggregateType: 'contract_items',
+      sourceKey: 'contract_items',
+      identity: { kind: 'generated', localId: 'local-1' },
+      operation: 'contract_items.update',
+      payload: { title: 'Changed' },
+      baseRevision: 1,
+      state: 'pending',
+      attempts: 0,
+      retryAt: null,
+      createdAt: 1,
+      lastErrorCode: null,
+      ...overrides,
+    };
+  }
+
+  it('creates real tables and atomically round-trips a row, cursor, and Outbox command', async () => {
+    const repository = createRepository();
+    await repository.initialize();
+    const scope = { userId: 7 as const, scopeId: 'demo' };
+    const row: OfflineReplicaRow = {
+      ...scope,
+      sourceKey: 'contract_items',
+      identity: { kind: 'generated', localId: 'local-1', remoteId: 101 },
+      values: { id: 101, title: 'Demo' },
+      confirmedValues: { id: 101, title: 'Demo' },
+      serverRevision: 1,
+      fetchedAt: 1,
+      syncState: 'confirmed',
+    };
+    const command = outboxCommand();
+
+    await repository.transactReplica({
+      putRows: [row],
+      putCursors: [{ ...scope, cursor: 'cursor-1' }],
+      putCommands: [command],
+    });
+
+    await expect(repository.getReplicaRow(scope, 'contract_items', command.identity)).resolves.toMatchObject({
+      ...row,
+      values: { title: 'Demo' },
+      confirmedValues: { title: 'Demo' },
+    });
+    await expect(repository.getReplicaCursor(scope)).resolves.toEqual({ ...scope, cursor: 'cursor-1' });
+    await expect(repository.getCommands(scope)).resolves.toMatchObject([command]);
+  });
+
+  it('rolls back earlier writes when a real SQLite constraint rejects the transaction', async () => {
+    const repository = createRepository();
+    await repository.initialize();
+    const scope = { userId: 7 as const, scopeId: 'demo' };
+
+    await expect(
+      repository.transactReplica({
+        putCursors: [
+          { ...scope, cursor: 'first' },
+          { ...scope, cursor: null as unknown as string },
+        ],
+      }),
+    ).rejects.toThrow();
+
+    await expect(repository.getReplicaCursor(scope)).resolves.toBeNull();
+  });
+
+  it('round-trips every durable Outbox field and keeps ordering and user/scope isolation', async () => {
+    const repository = createRepository();
+    await repository.initialize();
+    const scope = { userId: 7 as const, scopeId: 'demo' };
+    const footprint = [{ ...scope, sourceKey: 'contract_items', identity: { kind: 'generated' as const, localId: 'local-1' } }];
+    const richCommand = outboxCommand({
+      commandId: 'command-z',
+      operation: 'contract_items.delete',
+      payload: { title: 'Changed', nested: { enabled: true }, values: [1, null, 'x'] },
+      legacyOptimisticValue: { title: 'Legacy' },
+      legacyOptimisticCompanions: [{ id: 1 }],
+      legacyPayloadHash: 'legacy-hash',
+      localOnlyFootprint: footprint,
+      replicaMutation: 'delete',
+      baseRevision: 'revision-1',
+      state: 'retry_wait',
+      attempts: 3,
+      retryAt: 500,
+      createdAt: 20,
+      lastErrorCode: 'network',
+      serverCommitUnknown: true,
+      reconciliationIdentity: { remoteId: 101 },
+    });
+    const earlier: OfflineCommand = {
+      ...richCommand,
+      commandId: 'command-a',
+      createdAt: 10,
+      payload: { title: 'Earlier' },
+    };
+    const otherScope = { ...richCommand, commandId: 'command-m', scopeId: 'other', createdAt: 20 };
+    const otherUser = { ...richCommand, commandId: 'command-user-8', userId: 8, createdAt: 1 };
+
+    await repository.putCommand(richCommand);
+    await repository.putCommand(earlier);
+    await repository.putCommand(otherScope);
+    await repository.putCommand(otherUser);
+
+    await expect(repository.getCommands(scope)).resolves.toEqual([earlier, richCommand]);
+    await expect(repository.getCommandsForUser(7)).resolves.toEqual([earlier, otherScope, richCommand]);
+    await expect(repository.getCommandsForUser(8)).resolves.toEqual([otherUser]);
+  });
+
+  it('replaces an Outbox state without retaining optional values, then removes it', async () => {
+    const repository = createRepository();
+    await repository.initialize();
+    const scope = { userId: 7 as const, scopeId: 'demo' };
+    const command = outboxCommand({
+      legacyOptimisticValue: { title: 'Legacy' },
+      legacyOptimisticCompanions: [{ id: 1 }],
+      legacyPayloadHash: 'legacy-hash',
+      localOnlyFootprint: [{ ...scope, sourceKey: 'contract_items', identity: { kind: 'generated', localId: 'local-1' } }],
+      replicaMutation: 'delete',
+      baseRevision: 1,
+      state: 'sending',
+      attempts: 1,
+      retryAt: 100,
+      createdAt: 1,
+      lastErrorCode: 'network',
+      serverCommitUnknown: true,
+      reconciliationIdentity: { remoteId: 101 },
+    });
+    await repository.putCommand(command);
+
+    const replacement = outboxCommand({
+      commandId: command.commandId,
+      payload: { title: 'Retry' },
+      baseRevision: null,
+      state: 'pending',
+      attempts: 0,
+      retryAt: null,
+      createdAt: command.createdAt,
+      lastErrorCode: null,
+    });
+    await repository.replaceCommand(replacement);
+
+    await expect(repository.getCommands(scope)).resolves.toEqual([
+      { ...replacement, replicaMutation: 'upsert', serverCommitUnknown: false },
+    ]);
+    await repository.removeCommand(command.commandId);
+    await expect(repository.getCommands(scope)).resolves.toEqual([]);
+  });
+
+  it('atomically rolls back an Outbox enqueue when a later real SQLite write fails', async () => {
+    const repository = createRepository();
+    await repository.initialize();
+    const scope = { userId: 7 as const, scopeId: 'demo' };
+    const command = outboxCommand({
+      commandId: 'command-rollback',
+    });
+
+    await expect(
+      repository.transactReplica({
+        putCommands: [command],
+        putCursors: [{ ...scope, cursor: null as unknown as string }],
+      }),
+    ).rejects.toThrow();
+
+    await expect(repository.getCommands(scope)).resolves.toEqual([]);
+  });
+
+  it('does not lose or reorder rapid concurrent Outbox enqueues', async () => {
+    const repository = createRepository();
+    await repository.initialize();
+    const scope = { userId: 7 as const, scopeId: 'demo' };
+    const commands = Array.from({ length: 32 }, (_, index) =>
+      outboxCommand({
+        commandId: `command-${String(31 - index).padStart(2, '0')}`,
+        identity: { kind: 'generated', localId: `local-${index}` },
+        operation: index % 2 === 0 ? 'contract_items.consume' : 'contract_items.add',
+        payload: { quantity: index + 1 },
+        baseRevision: index,
+      }),
+    );
+
+    await Promise.all(commands.map((command) => repository.putCommand(command)));
+
+    const stored = await repository.getCommands(scope);
+    expect(stored).toHaveLength(commands.length);
+    expect(stored.map(({ commandId }) => commandId)).toEqual(
+      commands.map(({ commandId }) => commandId).sort((left, right) => left.localeCompare(right)),
+    );
+    expect(new Set(stored.map(({ identity }) => JSON.stringify(identity))).size).toBe(commands.length);
+  });
+
+  it('clears only the requested Outbox scope and user', async () => {
+    const repository = createRepository();
+    await repository.initialize();
+    const base = outboxCommand({
+      commandId: 'demo-command',
+    });
+    const otherScope = { ...base, scopeId: 'other', commandId: 'other-command' };
+    const otherUser = { ...base, userId: 8, commandId: 'other-user-command' };
+    await repository.putCommand(base);
+    await repository.putCommand(otherScope);
+    await repository.putCommand(otherUser);
+
+    await repository.clearScope({ userId: 7, scopeId: 'demo' });
+    await expect(repository.getCommandsForUser(7).then((commands) => commands.map(({ commandId }) => commandId))).resolves.toEqual([
+      otherScope.commandId,
+    ]);
+    await expect(repository.getCommandsForUser(8).then((commands) => commands.map(({ commandId }) => commandId))).resolves.toEqual([
+      otherUser.commandId,
+    ]);
+
+    await repository.clearUser(7);
+    await expect(repository.getCommandsForUser(7)).resolves.toEqual([]);
+    await expect(repository.getCommandsForUser(8).then((commands) => commands.map(({ commandId }) => commandId))).resolves.toEqual([
+      otherUser.commandId,
+    ]);
+  });
+});
diff --git a/vitest.sqlite.config.ts b/vitest.sqlite.config.ts
new file mode 100644
index 0000000..33d8d8f
--- /dev/null
+++ b/vitest.sqlite.config.ts
@@ -0,0 +1,14 @@
+import { fileURLToPath } from 'node:url';
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  resolve: {
+    alias: {
+      '@rdlabo/ionic-angular-kit': fileURLToPath(new URL('./projects/kit/src/public-api.ts', import.meta.url)),
+    },
+  },
+  test: {
+    environment: 'jsdom',
+    include: ['tests/sqlite-offline-repository.node.spec.ts'],
+  },
+});