diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 618409b3..4c241e3c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -344,6 +344,8 @@ The repository is organized as a monorepo with the following packages:
  -  *packages/elysia/*: Elysia integration (@fedify/elysia) for Fedify.
  -  *packages/express/*: Express integration (@fedify/express) for Fedify.
  -  *packages/fastify/*: Fastify integration (@fedify/fastify) for Fedify.
+ -  *packages/fixture/*: Testing utilities (@fedify/fixture) providing
+    runtime-agnostic test adapters.
  -  *packages/fresh/*: Fresh integration (@fedify/fresh) for Fedify.
  -  *packages/h3/*: h3 framework integration (@fedify/h3) for Fedify.
  -  *packages/hono/*: Hono integration (@fedify/hono) for Fedify.
@@ -352,11 +354,12 @@ The repository is organized as a monorepo with the following packages:
     `npm init @fedify`.
  -  *packages/koa/*: Koa integration (@fedify/koa) for Fedify.
  -  *packages/lint/*: Linting utilities (@fedify/lint) for Fedify.
+ -  *packages/mysql/*: MySQL/MariaDB drivers (@fedify/mysql) for Fedify.
+ -  *packages/nestjs/*: NestJS integration (@fedify/nestjs) for Fedify.
+ -  *packages/next/*: Next.js integration (@fedify/next) for Fedify.
  -  *packages/postgres/*: PostgreSQL drivers (@fedify/postgres) for Fedify.
  -  *packages/redis/*: Redis drivers (@fedify/redis) for Fedify.
  -  *packages/relay/*: ActivityPub relay support (@fedify/relay) for Fedify.
- -  *packages/nestjs/*: NestJS integration (@fedify/nestjs) for Fedify.
- -  *packages/next/*: Next.js integration (@fedify/next) for Fedify.
  -  *packages/sqlite/*: SQLite driver (@fedify/sqlite) for Fedify.
  -  *packages/sveltekit/*: SvelteKit integration (@fedify/sveltekit) for Fedify.
  -  *packages/testing/*: Testing utilities (@fedify/testing) for Fedify.
@@ -367,8 +370,6 @@ The repository is organized as a monorepo with the following packages:
     (@fedify/vocab-tools) for Fedify.
  -  *packages/webfinger/*: WebFinger client library (@fedify/webfinger) for
     ActivityPub.
- -  *packages/fixture/*: Testing utilities (@fedify/fixture) providing
-    runtime-agnostic test adapters.
  -  *docs/*: The Fedify docs.  The docs are built with [Node.js] and
     [VitePress].
  -  *examples/*: The example projects.  Some examples are built with Deno, and
diff --git a/packages/init/src/const.ts b/packages/init/src/const.ts
index 6b0b8760..f9e332e8 100644
--- a/packages/init/src/const.ts
+++ b/packages/init/src/const.ts
@@ -12,13 +12,19 @@ export const WEB_FRAMEWORK = [
 ] as const;
 
 /** All supported message queue backend identifiers. */
-export const MESSAGE_QUEUE = ["denokv", "redis", "postgres", "amqp"] as const;
+export const MESSAGE_QUEUE = [
+  "denokv",
+  "redis",
+  "postgres",
+  "mysql",
+  "amqp",
+] as const;
 
 /** All supported key-value store backend identifiers. */
-export const KV_STORE = ["denokv", "redis", "postgres"] as const;
+export const KV_STORE = ["denokv", "redis", "postgres", "mysql"] as const;
 
 /**
  * External database services that need to be running for integration tests.
  * Used by the test suite to check service availability before running tests.
  */
-export const DB_TO_CHECK = ["redis", "postgres", "amqp"] as const;
+export const DB_TO_CHECK = ["redis", "postgres", "mysql", "amqp"] as const;
diff --git a/packages/init/src/json/db-to-check.json b/packages/init/src/json/db-to-check.json
index 46a64c36..c66ac291 100644
--- a/packages/init/src/json/db-to-check.json
+++ b/packages/init/src/json/db-to-check.json
@@ -9,6 +9,11 @@
     "defaultPort": 5432,
     "documentation": "https://www.postgresql.org/download/"
   },
+  "mysql": {
+    "name": "MySQL/MariaDB",
+    "defaultPort": 3306,
+    "documentation": "https://dev.mysql.com/doc/mysql-installation-excerpt/en/"
+  },
   "amqp": {
     "name": "RabbitMQ",
     "defaultPort": 5672,
diff --git a/packages/init/src/json/mq.json b/packages/init/src/json/mq.json
index 2dd6143e..627d1832 100644
--- a/packages/init/src/json/mq.json
+++ b/packages/init/src/json/mq.json
@@ -49,6 +49,31 @@
       "POSTGRES_URL": "postgres://postgres@localhost:5432/postgres"
     }
   },
+  "mysql": {
+    "label": "MySQL/MariaDB",
+    "packageManagers": [
+      "deno",
+      "bun",
+      "npm",
+      "yarn",
+      "pnpm"
+    ],
+    "dependencies": {
+      "npm:mysql2": "^3.18.0"
+    },
+    "imports": {
+      "@fedify/mysql": {
+        "MysqlMessageQueue": "MysqlMessageQueue"
+      },
+      "mysql2/promise": {
+        "default": "mysql"
+      }
+    },
+    "object": "new MysqlMessageQueue(mysql.createPool(process.env.MYSQL_URL))",
+    "env": {
+      "MYSQL_URL": "mysql://root@localhost/fedify"
+    }
+  },
   "amqp": {
     "label": "AMQP (e.g., RabbitMQ)",
     "packageManagers": [