diff --git a/back/package.json b/back/package.json
index e0c6bb0..c25487f 100644
--- a/back/package.json
+++ b/back/package.json
@@ -10,7 +10,11 @@
     "lint": "eslint \"{src,apps,libs,test}/**/*.ts\"",
     "test": "vitest run",
     "test:watch": "vitest",
-    "test:cov": "vitest run --coverage"
+    "test:cov": "vitest run --coverage",
+    "migration:generate": "typeorm-ts-node-commonjs migration:generate -d src/data-source.ts",
+    "migration:run": "typeorm-ts-node-commonjs migration:run -d src/data-source.ts",
+    "migration:revert": "typeorm-ts-node-commonjs migration:revert -d src/data-source.ts",
+    "migration:show": "typeorm-ts-node-commonjs migration:show -d src/data-source.ts"
   },
   "dependencies": {
     "@asyncapi/bundler": "^1.0.1",
diff --git a/back/src/app.module.ts b/back/src/app.module.ts
index cf459a6..f9f83a7 100644
--- a/back/src/app.module.ts
+++ b/back/src/app.module.ts
@@ -22,7 +22,11 @@ import { validateEnv } from './config/env.validation';
         password: config.getOrThrow<string>('DATABASE_PASSWORD'),
         database: config.getOrThrow<string>('DATABASE_NAME'),
         entities: [__dirname + '/**/*.entity{.ts,.js}'],
+        migrations: [__dirname + '/migrations/*{.ts,.js}'],
+        // Dev : synchronize auto (itération rapide). Prod : pas de synchronize,
+        // le schéma est appliqué par les migrations exécutées au démarrage.
         synchronize: config.get('NODE_ENV') !== 'production',
+        migrationsRun: config.get('NODE_ENV') === 'production',
         logging: config.get('NODE_ENV') === 'development',
       }),
     }),
diff --git a/back/src/data-source.ts b/back/src/data-source.ts
new file mode 100644
index 0000000..271ab74
--- /dev/null
+++ b/back/src/data-source.ts
@@ -0,0 +1,20 @@
+import 'reflect-metadata';
+import { DataSource } from 'typeorm';
+
+/**
+ * DataSource dédié à la CLI TypeORM (migrations). Lit l'environnement
+ * directement (les mêmes DATABASE_* que l'app). Utilisé par les scripts
+ * migration:generate / migration:run / migration:revert.
+ *
+ * NB : la config runtime de l'app vit dans app.module.ts (TypeOrmModule).
+ */
+export default new DataSource({
+  type: 'postgres',
+  host: process.env.DATABASE_HOST ?? 'localhost',
+  port: Number(process.env.DATABASE_PORT ?? 5432),
+  username: process.env.DATABASE_USER ?? 'datacat',
+  password: process.env.DATABASE_PASSWORD ?? 'datacat',
+  database: process.env.DATABASE_NAME ?? 'datacat',
+  entities: ['src/**/*.entity.ts'],
+  migrations: ['src/migrations/*.ts'],
+});
diff --git a/back/src/migrations/1782543826810-InitialSchema.ts b/back/src/migrations/1782543826810-InitialSchema.ts
new file mode 100644
index 0000000..33355fc
--- /dev/null
+++ b/back/src/migrations/1782543826810-InitialSchema.ts
@@ -0,0 +1,16 @@
+import { MigrationInterface, QueryRunner } from "typeorm";
+
+export class InitialSchema1782543826810 implements MigrationInterface {
+    name = 'InitialSchema1782543826810'
+
+    public async up(queryRunner: QueryRunner): Promise<void> {
+        await queryRunner.query(`CREATE TABLE "categories" ("id" uuid NOT NULL DEFAULT uuid_generate_v4(), "name" character varying(255) NOT NULL, "description" text, "parent_id" character varying(36), "order_index" integer NOT NULL DEFAULT '0', "created_at" TIMESTAMP NOT NULL DEFAULT now(), "updated_at" TIMESTAMP NOT NULL DEFAULT now(), CONSTRAINT "PK_24dbc6126a28ff948da33e97d3b" PRIMARY KEY ("id"))`);
+        await queryRunner.query(`CREATE TABLE "api_entries" ("id" uuid NOT NULL DEFAULT uuid_generate_v4(), "convention" character varying(30) NOT NULL DEFAULT 'CONSULTER', "name" character varying(255) NOT NULL DEFAULT '', "description" text, "type" character varying(10) NOT NULL, "provider" character varying(255) NOT NULL DEFAULT '', "version_major" integer NOT NULL DEFAULT '0', "version_minor" integer NOT NULL DEFAULT '0', "version_patch" integer NOT NULL DEFAULT '0', "yaml_content" text NOT NULL, "html_path" character varying(500), "status" character varying(10) NOT NULL DEFAULT 'PENDING', "error_message" text, "category_id" character varying(36), "is_current" boolean NOT NULL DEFAULT true, "contact_functional_name" character varying(255) NOT NULL DEFAULT '', "contact_functional_entity" character varying(255) NOT NULL DEFAULT '', "contact_functional_email" character varying(255) NOT NULL DEFAULT '', "contact_technical_name" character varying(255) NOT NULL DEFAULT '', "contact_technical_entity" character varying(255) NOT NULL DEFAULT '', "contact_technical_email" character varying(255) NOT NULL DEFAULT '', "created_at" TIMESTAMP NOT NULL DEFAULT now(), "updated_at" TIMESTAMP NOT NULL DEFAULT now(), CONSTRAINT "PK_d7b668541d2539a0c212b198d32" PRIMARY KEY ("id"))`);
+    }
+
+    public async down(queryRunner: QueryRunner): Promise<void> {
+        await queryRunner.query(`DROP TABLE "api_entries"`);
+        await queryRunner.query(`DROP TABLE "categories"`);
+    }
+
+}