diff --git a/src/db/blog.ts b/src/db/blog.ts
index 64bc8ba..c23ccc6 100644
--- a/src/db/blog.ts
+++ b/src/db/blog.ts
@@ -5,11 +5,11 @@ import { Blog } from "~entities/blog.js";
 import { generateKeyPair } from "./util/rsa.js";
 import MercuryDataSource from "./index.js";
 
-export const notLocalAccount = new Error("account is not local");
+export const incorrectAccountType = new Error("wrong account type for function");
 
 /** Create a local blog. Throws an error if the given account is not a local account. */
 export async function createLocalBlog(account: Account, name: string) {
-  if (account.host) throw notLocalAccount;
+  if (account.host) throw incorrectAccountType;
 
   const keyPair = await generateKeyPair();
 
@@ -25,3 +25,19 @@ export async function createLocalBlog(account: Account, name: string) {
 
   return blog;
 }
+
+export async function createRemoteBlog(account: Account, name: string, apId: string, publicKey: string) {
+  if (!account.host) throw incorrectAccountType;
+
+  const blog = new Blog();
+  blog.id = ulid();
+  blog.apId = apId;
+  blog.username = name;
+  blog.host = account.host;
+  blog.account = account;
+  blog.publicKey = publicKey;
+
+  await MercuryDataSource.getRepository(Blog).save(blog);
+
+  return blog;
+}
diff --git a/src/db/entities/blog.ts b/src/db/entities/blog.ts
index e92f03f..daef6c0 100644
--- a/src/db/entities/blog.ts
+++ b/src/db/entities/blog.ts
@@ -14,6 +14,8 @@ import { Post } from "./post.js";
 export class Blog {
   @PrimaryColumn("text")
   id: string;
+  @Column("text", { nullable: true, unique: true, comment: "ActivityPub ID" })
+  apId: string | null;
   @Column("text", { nullable: false })
   username: string;
   @Column("text", { nullable: true })
diff --git a/src/db/entities/post.ts b/src/db/entities/post.ts
index 4cc665b..10a1e38 100644
--- a/src/db/entities/post.ts
+++ b/src/db/entities/post.ts
@@ -5,6 +5,8 @@ import { Blog } from "./blog.js";
 export class Post {
   @PrimaryColumn("text")
   id: string;
+  @Column("text", { nullable: true, unique: true, comment: "ActivityPub ID" })
+  apId: string | null;
   @Column("text", { nullable: true })
   content: string | null;
   @Column("text", { nullable: true })
diff --git a/src/db/index.ts b/src/db/index.ts
index 2e22177..5c202e3 100644
--- a/src/db/index.ts
+++ b/src/db/index.ts
@@ -15,6 +15,8 @@ const MercuryDataSource = new DataSource({
   database: config.DATABASE_NAME,
   entities: [Account, Blog, Post],
   migrations: ["src/db/migrations/*.js"],
+  logging:
+    process.env.NODE_ENV === "production" ? ["error"] : ["query", "error"],
 });
 
 export default MercuryDataSource;
diff --git a/src/db/migrations/1689900517279-addApIds.js b/src/db/migrations/1689900517279-addApIds.js
new file mode 100644
index 0000000..493a336
--- /dev/null
+++ b/src/db/migrations/1689900517279-addApIds.js
@@ -0,0 +1,50 @@
+export class AddApIds1689900517279 {
+    name = 'AddApIds1689900517279'
+
+    async up(queryRunner) {
+        await queryRunner.query(`
+            ALTER TABLE "post"
+            ADD "apId" text
+        `);
+        await queryRunner.query(`
+            ALTER TABLE "post"
+            ADD CONSTRAINT "UQ_e16e967a725a0f3f681bf99bd6e" UNIQUE ("apId")
+        `);
+        await queryRunner.query(`
+            COMMENT ON COLUMN "post"."apId" IS 'ActivityPub ID'
+        `);
+        await queryRunner.query(`
+            ALTER TABLE "blog"
+            ADD "apId" text
+        `);
+        await queryRunner.query(`
+            ALTER TABLE "blog"
+            ADD CONSTRAINT "UQ_624066bd60ecf91ee390637d171" UNIQUE ("apId")
+        `);
+        await queryRunner.query(`
+            COMMENT ON COLUMN "blog"."apId" IS 'ActivityPub ID'
+        `);
+    }
+
+    async down(queryRunner) {
+        await queryRunner.query(`
+            COMMENT ON COLUMN "blog"."apId" IS 'ActivityPub ID'
+        `);
+        await queryRunner.query(`
+            ALTER TABLE "blog" DROP CONSTRAINT "UQ_624066bd60ecf91ee390637d171"
+        `);
+        await queryRunner.query(`
+            ALTER TABLE "blog" DROP COLUMN "apId"
+        `);
+        await queryRunner.query(`
+            COMMENT ON COLUMN "post"."apId" IS 'ActivityPub ID'
+        `);
+        await queryRunner.query(`
+            ALTER TABLE "post" DROP CONSTRAINT "UQ_e16e967a725a0f3f681bf99bd6e"
+        `);
+        await queryRunner.query(`
+            ALTER TABLE "post" DROP COLUMN "apId"
+        `);
+    }
+
+}
diff --git a/src/start.ts b/src/start.ts
index c20d5b5..d3da7fe 100644
--- a/src/start.ts
+++ b/src/start.ts
@@ -21,6 +21,11 @@ export default async function start() {
   log.debug("Setting up routes");
   const app = Fastify();
 
+  app.setNotFoundHandler((req, res) => {
+    log.debug("Route %s not found", req.url);
+    res.status(404).send({ message: "Not found" });
+  });
+
   const routes = await getRoutes();
   mountRoutes(app, routes);