diff --git a/.env.example b/.env.example
index 0ae91ba..8847745 100644
--- a/.env.example
+++ b/.env.example
@@ -1,20 +1,20 @@
 # Server
-PORT=7002
+FABRIC_BACKEND_GUILD_PORT=7002
 
 # MySQL
-DB_HOST=mysql-guild
-DB_PORT=3306
-DB_USER=fabric
-DB_PASSWORD=fabric
-DB_NAME=fabric_guild
-DB_SYNC=true
-DB_LOGGING=false
+FABRIC_BACKEND_GUILD_DB_HOST=mysql-guild
+FABRIC_BACKEND_GUILD_DB_PORT=3306
+FABRIC_BACKEND_GUILD_DB_USER=fabric
+FABRIC_BACKEND_GUILD_DB_PASSWORD=fabric
+FABRIC_BACKEND_GUILD_DB_NAME=fabric_guild
+FABRIC_BACKEND_GUILD_DB_SYNC=true
+FABRIC_BACKEND_GUILD_DB_LOGGING=false
 
 # Guild identity
-GUILD_NODE_ID=guild-node-1
-GUILD_NODE_NAME=Guild Node 1
-GUILD_PUBLIC_ENDPOINT=http://localhost:7002
+FABRIC_BACKEND_GUILD_NODE_ID=guild-node-1
+FABRIC_BACKEND_GUILD_NODE_NAME=Guild Node 1
+FABRIC_BACKEND_GUILD_PUBLIC_ENDPOINT=http://localhost:7002
 
 # Center handshake
-CENTER_BASE_URL=http://backend-center:7001
-CENTER_API_KEY=
+FABRIC_BACKEND_GUILD_CENTER_BASE_URL=http://backend-center:7001
+FABRIC_BACKEND_GUILD_CENTER_API_KEY=
diff --git a/README.md b/README.md
index 7f247b3..05c704e 100644
--- a/README.md
+++ b/README.md
@@ -15,8 +15,8 @@ Guild Node service for Fabric.
 - Seq allocator and range query endpoints
 
 ## Required env (startup hard checks)
-- `CENTER_BASE_URL`
-- `CENTER_API_KEY`
-- `GUILD_NODE_ID`
+- `FABRIC_BACKEND_GUILD_CENTER_BASE_URL`
+- `FABRIC_BACKEND_GUILD_CENTER_API_KEY`
+- `FABRIC_BACKEND_GUILD_NODE_ID`
 
 If any of the above is missing, service startup fails immediately.
diff --git a/src/common/center-auth.ts b/src/common/center-auth.ts
index 39e530b..c1b7a1f 100644
--- a/src/common/center-auth.ts
+++ b/src/common/center-auth.ts
@@ -1,7 +1,7 @@
 export async function introspectGuildToken(token: string): Promise<{ active: boolean; user?: { id: string; email?: string } }> {
-  const centerBaseUrl = process.env.CENTER_BASE_URL;
-  const guildNodeId = process.env.GUILD_NODE_ID;
-  const centerApiKey = process.env.CENTER_API_KEY;
+  const centerBaseUrl = process.env.FABRIC_BACKEND_GUILD_CENTER_BASE_URL;
+  const guildNodeId = process.env.FABRIC_BACKEND_GUILD_NODE_ID;
+  const centerApiKey = process.env.FABRIC_BACKEND_GUILD_CENTER_API_KEY;
 
   if (!centerBaseUrl || !guildNodeId || !centerApiKey) {
     return { active: false };
diff --git a/src/database.config.ts b/src/database.config.ts
index 966c31e..5dccfb5 100644
--- a/src/database.config.ts
+++ b/src/database.config.ts
@@ -11,11 +11,11 @@ import { IdempotencyRecord } from './entities/idempotency-record.entity';
 
 export const buildTypeOrmConfig = (): TypeOrmModuleOptions => ({
   type: 'mysql',
-  host: process.env.DB_HOST ?? 'mysql-guild',
-  port: Number(process.env.DB_PORT ?? 3306),
-  username: process.env.DB_USER ?? 'fabric',
-  password: process.env.DB_PASSWORD ?? 'fabric',
-  database: process.env.DB_NAME ?? 'fabric_guild',
+  host: process.env.FABRIC_BACKEND_GUILD_DB_HOST ?? 'mysql-guild',
+  port: Number(process.env.FABRIC_BACKEND_GUILD_DB_PORT ?? 3306),
+  username: process.env.FABRIC_BACKEND_GUILD_DB_USER ?? 'fabric',
+  password: process.env.FABRIC_BACKEND_GUILD_DB_PASSWORD ?? 'fabric',
+  database: process.env.FABRIC_BACKEND_GUILD_DB_NAME ?? 'fabric_guild',
   entities: [
     Guild,
     Channel,
@@ -27,6 +27,6 @@ export const buildTypeOrmConfig = (): TypeOrmModuleOptions => ({
     GuildMemberRole,
     IdempotencyRecord,
   ],
-  synchronize: (process.env.DB_SYNC ?? 'true') === 'true',
-  logging: (process.env.DB_LOGGING ?? 'false') === 'true',
+  synchronize: (process.env.FABRIC_BACKEND_GUILD_DB_SYNC ?? 'true') === 'true',
+  logging: (process.env.FABRIC_BACKEND_GUILD_DB_LOGGING ?? 'false') === 'true',
 });
diff --git a/src/main.ts b/src/main.ts
index 273f5c8..e58fe90 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -15,9 +15,9 @@ function requireEnv(name: string): string {
 }
 
 function validateEnv(): void {
-  requireEnv('CENTER_BASE_URL');
-  requireEnv('CENTER_API_KEY');
-  requireEnv('GUILD_NODE_ID');
+  requireEnv('FABRIC_BACKEND_GUILD_CENTER_BASE_URL');
+  requireEnv('FABRIC_BACKEND_GUILD_CENTER_API_KEY');
+  requireEnv('FABRIC_BACKEND_GUILD_NODE_ID');
 }
 
 async function bootstrap() {
@@ -43,7 +43,7 @@ async function bootstrap() {
   const swaggerDoc = SwaggerModule.createDocument(app, swaggerConfig);
   SwaggerModule.setup('docs', app, swaggerDoc);
 
-  const port = process.env.PORT ? Number(process.env.PORT) : 7002;
+  const port = process.env.FABRIC_BACKEND_GUILD_PORT ? Number(process.env.FABRIC_BACKEND_GUILD_PORT) : 7002;
   await app.listen(port);
   console.log(`Fabric.Backend.Guild listening on :${port}`);
 }