diff --git a/packages/backend/src/boot/index.ts b/packages/backend/src/boot/index.ts
index 997c78b3ef..056dc9a51d 100644
--- a/packages/backend/src/boot/index.ts
+++ b/packages/backend/src/boot/index.ts
@@ -18,62 +18,62 @@ const ev = new Xev();
  * Init process
  */
 export default async function() {
-	process.title = `Calckey (${cluster.isPrimary ? 'master' : 'worker'})`;
-
-	if (cluster.isPrimary || envOption.disableClustering) {
-		await masterMain();
-
-		if (cluster.isPrimary) {
-			ev.mount();
-		}
-	}
-
-	if (cluster.isWorker || envOption.disableClustering) {
-		await workerMain();
-	}
-
-	// For when Calckey is started in a child process during unit testing.
-        // Otherwise, process.send cannot be used, so start it.
-	if (process.send) {
-		process.send('ok');
+    process.title = `Calckey (${cluster.isPrimary ? 'master' : 'worker'})`;
+    
+    if (cluster.isPrimary || envOption.disableClustering) {
+	await masterMain();
+	    
+	if (cluster.isPrimary) {
+	    ev.mount();
 	}
+    }
+    
+    if (cluster.isWorker || envOption.disableClustering) {
+	await workerMain();
+    }
+    
+    // For when Calckey is started in a child process during unit testing.
+    // Otherwise, process.send cannot be used, so start it.
+    if (process.send) {
+	process.send('ok');
+    }
 }
 
 //#region Events
 
 // Listen new workers
 cluster.on('fork', worker => {
-	clusterLogger.debug(`Process forked: [${worker.id}]`);
+    clusterLogger.debug(`Process forked: [${worker.id}]`);
 });
 
 // Listen online workers
 cluster.on('online', worker => {
-	clusterLogger.debug(`Process is now online: [${worker.id}]`);
+    clusterLogger.debug(`Process is now online: [${worker.id}]`);
 });
 
 // Listen for dying workers
 cluster.on('exit', worker => {
-	// Replace the dead worker,
-	// we're not sentimental
-	clusterLogger.error(chalk.red(`[${worker.id}] died :(`));
-	cluster.fork();
+    // Replace the dead worker,
+    // we're not sentimental
+    clusterLogger.error(chalk.red(`[${worker.id}] died :(`));
+    cluster.fork();
 });
 
 // Display detail of unhandled promise rejection
 if (!envOption.quiet) {
-	process.on('unhandledRejection', console.dir);
+    process.on('unhandledRejection', console.dir);
 }
 
 // Display detail of uncaught exception
 process.on('uncaughtException', err => {
-	try {
-		logger.error(err);
-	} catch { }
+    try {
+	logger.error(err);
+    } catch { }
 });
 
 // Dying away...
 process.on('exit', code => {
-	logger.info(`The process is going to exit with code ${code}`);
+    logger.info(`The process is going to exit with code ${code}`);
 });
 
 //#endregion
diff --git a/packages/backend/src/remote/activitypub/kernel/delete/index.ts b/packages/backend/src/remote/activitypub/kernel/delete/index.ts
index ac778c05b4..fc0ff8ad51 100644
--- a/packages/backend/src/remote/activitypub/kernel/delete/index.ts
+++ b/packages/backend/src/remote/activitypub/kernel/delete/index.ts
@@ -8,44 +8,44 @@ import { deleteActor } from './actor.js';
  * Handle delete activity
  */
 export default async (actor: CacheableRemoteUser, activity: IDelete): Promise<string> => {
-	if ('actor' in activity && actor.uri !== activity.actor) {
-		throw new Error('invalid actor');
-	}
-
-	// Type of object to be deleted
-	let formerType: string | undefined;
-
+    if ('actor' in activity && actor.uri !== activity.actor) {
+	throw new Error('invalid actor');
+    }
+    
+    // Type of object to be deleted
+    let formerType: string | undefined;
+    
 	if (typeof activity.object === 'string') {
 	    // The type is unknown, but it has disappeared
 	    // anyway, so it does not remote resolve
-		formerType = undefined;
+	    formerType = undefined;
 	} else {
-		const object = activity.object as IObject;
-		if (isTombstone(object)) {
-			formerType = toSingle(object.formerType);
-		} else {
-			formerType = toSingle(object.type);
-		}
+	    const object = activity.object as IObject;
+	    if (isTombstone(object)) {
+		formerType = toSingle(object.formerType);
+	    } else {
+		formerType = toSingle(object.type);
+	    }
 	}
-
-	const uri = getApId(activity.object);
-
+    
+    const uri = getApId(activity.object);
+    
     // Even if type is unknown, if actor and object are the same,
     // it must be `Person`.
-	if (!formerType && actor.uri === uri) {
-		formerType = 'Person';
-	}
+    if (!formerType && actor.uri === uri) {
+	formerType = 'Person';
+    }
 
 	// If not, fallback to `Note`.
-	if (!formerType) {
-		formerType = 'Note';
-	}
+    if (!formerType) {
+	formerType = 'Note';
+    }
 
-	if (validPost.includes(formerType)) {
-		return await deleteNote(actor, uri);
-	} else if (validActor.includes(formerType)) {
-		return await deleteActor(actor, uri);
-	} else {
-		return `Unknown type ${formerType}`;
-	}
+    if (validPost.includes(formerType)) {
+	return await deleteNote(actor, uri);
+    } else if (validActor.includes(formerType)) {
+	return await deleteActor(actor, uri);
+    } else {
+	return `Unknown type ${formerType}`;
+    }
 };
diff --git a/packages/backend/src/remote/activitypub/models/image.ts b/packages/backend/src/remote/activitypub/models/image.ts
index 1022b17ecf..111cd25647 100644
--- a/packages/backend/src/remote/activitypub/models/image.ts
+++ b/packages/backend/src/remote/activitypub/models/image.ts
@@ -55,11 +55,11 @@ export async function createImage(actor: CacheableRemoteUser, value: any): Promi
 }
 
 /**
-  * Resolve Image.
-  *
-  * If the target Image is registered in Calckey, return it, otherwise
-  * Fetch from remote server, register with Calckey and return it.
-  */
+ * Resolve Image.
+ *
+ * If the target Image is registered in Calckey, return it, otherwise
+ * Fetch from remote server, register with Calckey and return it.
+ */
 export async function resolveImage(actor: CacheableRemoteUser, value: any): Promise<DriveFile> {
 	// TODO
 
diff --git a/packages/backend/src/remote/activitypub/models/note.ts b/packages/backend/src/remote/activitypub/models/note.ts
index 8d700b14d0..64dc965ec3 100644
--- a/packages/backend/src/remote/activitypub/models/note.ts
+++ b/packages/backend/src/remote/activitypub/models/note.ts
@@ -53,10 +53,10 @@ export function validateNote(object: any, uri: string) {
 }
 
 /**
-  * Fetch Notes.
-  *
-  * If the target Note is registered in Calckey, it will be returned.
-  */
+ * Fetch Notes.
+ *
+ * If the target Note is registered in Calckey, it will be returned.
+ */
 export async function fetchNote(object: string | IObject): Promise<Note | null> {
 	const dbResolver = new DbResolver();
 	return await dbResolver.getNoteFromApId(object);
@@ -265,11 +265,11 @@ export async function createNote(value: string | IObject, resolver?: Resolver, s
 }
 
 /**
-  * Resolve Note.
-  *
-  * If the target Note is registered in Calckey, return it, otherwise
-  * Fetch from remote server, register with Calckey and return it.
-  */
+ * Resolve Note.
+ *
+ * If the target Note is registered in Calckey, return it, otherwise
+ * Fetch from remote server, register with Calckey and return it.
+ */
 export async function resolveNote(value: string | IObject, resolver?: Resolver): Promise<Note | null> {
 	const uri = typeof value === 'string' ? value : value.id;
 	if (uri == null) throw new Error('missing uri');