diff --git a/src/fsa-to-node/FsaNodeFs.ts b/src/fsa-to-node/FsaNodeFs.ts
index ad06512eb..eeb258e43 100644
--- a/src/fsa-to-node/FsaNodeFs.ts
+++ b/src/fsa-to-node/FsaNodeFs.ts
@@ -40,13 +40,13 @@ import { constants } from '../constants';
 import { FsaNodeStats } from './FsaNodeStats';
 import process from '../process';
 import { FsSynchronousApi } from '../node/types/FsSynchronousApi';
-import {FsaNodeWriteStream} from './FsaNodeWriteStream';
+import { FsaNodeWriteStream } from './FsaNodeWriteStream';
 import type { FsCallbackApi, FsPromisesApi } from '../node/types';
 import type * as misc from '../node/types/misc';
 import type * as opts from '../node/types/options';
 import type * as fsa from '../fsa/types';
 import type { FsCommonObjects } from '../node/types/FsCommonObjects';
-import type {WritevCallback} from '../node/types/callback';
+import type { WritevCallback } from '../node/types/callback';
 
 const notSupported: (...args: any[]) => any = () => {
   throw new Error('Method not supported by the File System Access API.');
@@ -269,7 +269,7 @@ export class FsaNodeFs implements FsCallbackApi, FsSynchronousApi, FsCommonObjec
     fd: number,
     buffers: ArrayBufferView[],
     a: number | null | WritevCallback,
-    b?: WritevCallback
+    b?: WritevCallback,
   ): void => {
     validateFd(fd);
     let position: number | null = null;
@@ -767,32 +767,66 @@ export class FsaNodeFs implements FsCallbackApi, FsSynchronousApi, FsCommonObjec
       );
   };
 
-  public readonly fchmod: FsCallbackApi['fchmod'] = (fd: number, mode: misc.TMode, callback: misc.TCallback<void>): void => {
+  public readonly fchmod: FsCallbackApi['fchmod'] = (
+    fd: number,
+    mode: misc.TMode,
+    callback: misc.TCallback<void>,
+  ): void => {
     callback(null);
   };
 
-  public readonly chmod: FsCallbackApi['chmod'] = (path: misc.PathLike, mode: misc.TMode, callback: misc.TCallback<void>): void => {
+  public readonly chmod: FsCallbackApi['chmod'] = (
+    path: misc.PathLike,
+    mode: misc.TMode,
+    callback: misc.TCallback<void>,
+  ): void => {
     callback(null);
   };
 
-  public readonly lchmod: FsCallbackApi['lchmod'] = (path: misc.PathLike, mode: misc.TMode, callback: misc.TCallback<void>): void => {
+  public readonly lchmod: FsCallbackApi['lchmod'] = (
+    path: misc.PathLike,
+    mode: misc.TMode,
+    callback: misc.TCallback<void>,
+  ): void => {
     callback(null);
   };
 
-  public readonly fchown: FsCallbackApi['fchown'] = (fd: number, uid: number, gid: number, callback: misc.TCallback<void>): void => {
+  public readonly fchown: FsCallbackApi['fchown'] = (
+    fd: number,
+    uid: number,
+    gid: number,
+    callback: misc.TCallback<void>,
+  ): void => {
     callback(null);
   };
 
-  public readonly chown: FsCallbackApi['chown'] = (path: misc.PathLike, uid: number, gid: number, callback: misc.TCallback<void>): void => {
+  public readonly chown: FsCallbackApi['chown'] = (
+    path: misc.PathLike,
+    uid: number,
+    gid: number,
+    callback: misc.TCallback<void>,
+  ): void => {
     callback(null);
   };
 
-  public readonly lchown: FsCallbackApi['lchown'] = (path: misc.PathLike, uid: number, gid: number, callback: misc.TCallback<void>): void => {
+  public readonly lchown: FsCallbackApi['lchown'] = (
+    path: misc.PathLike,
+    uid: number,
+    gid: number,
+    callback: misc.TCallback<void>,
+  ): void => {
     callback(null);
   };
 
-  public readonly createWriteStream: FsCallbackApi['createWriteStream'] = (path: misc.PathLike, options?: opts.IWriteStreamOptions | string): FsaNodeWriteStream => {
-    const optionsObj: opts.IWriteStreamOptions = !options ? {} : typeof options === 'object' ? options : { encoding: options } as opts.IWriteStreamOptions;
+  public readonly createWriteStream: FsCallbackApi['createWriteStream'] = (
+    path: misc.PathLike,
+    options?: opts.IWriteStreamOptions | string,
+  ): FsaNodeWriteStream => {
+    const optionsObj: opts.IWriteStreamOptions = !options
+      ? {}
+      : typeof options === 'object'
+      ? options
+      : ({ encoding: options } as opts.IWriteStreamOptions);
     const filename = pathToFilename(path);
     const location = pathToLocation(filename);
     const flags = flagsToNumber(optionsObj.flags);
diff --git a/src/fsa-to-node/FsaNodeWriteStream.ts b/src/fsa-to-node/FsaNodeWriteStream.ts
index b5edf4db9..3a28e3fcc 100644
--- a/src/fsa-to-node/FsaNodeWriteStream.ts
+++ b/src/fsa-to-node/FsaNodeWriteStream.ts
@@ -1,20 +1,20 @@
-import {Writable} from 'stream';
-import {Defer} from 'thingies/es6/Defer';
-import type {IFileSystemFileHandle} from '../fsa/types';
-import type {IWriteStream} from '../node/types/misc';
-import type {IWriteStreamOptions} from '../node/types/options';
+import { Writable } from 'stream';
+import { Defer } from 'thingies/es6/Defer';
+import type { IFileSystemFileHandle } from '../fsa/types';
+import type { IWriteStream } from '../node/types/misc';
+import type { IWriteStreamOptions } from '../node/types/options';
 
 /**
  * This WriteStream implementation does not build on top of the `fs` module,
  * but instead uses the lower-level `FileSystemFileHandle` interface. The reason
  * is the different semantics in `fs` and FSA (File System Access API) write streams.
- * 
+ *
  * When data is written to an FSA file, a new FSA stream is created, it copies
  * the file to a temporary swap file. After each written chunk, that swap file
  * is closed and the original file is replaced with the swap file. This means,
  * if WriteStream was built on top of `fs`, each chunk write would result in
  * a file copy, write, close, rename operations, which is not what we want.
- * 
+ *
  * Instead this implementation hooks into the lower-level and closes the swap
  * file only once the stream is closed. The downside is that the written data
  * is not immediately visible to other processes (because it is written to the
@@ -25,14 +25,18 @@ export class FsaNodeWriteStream extends Writable implements IWriteStream {
   protected ready = new Defer<void>();
   protected closed: boolean = false;
 
-  public constructor(protected readonly handle: Promise<IFileSystemFileHandle>, public readonly path: string, protected readonly options?: IWriteStreamOptions) {
+  public constructor(
+    protected readonly handle: Promise<IFileSystemFileHandle>,
+    public readonly path: string,
+    protected readonly options?: IWriteStreamOptions,
+  ) {
     super();
     handle
       .then(() => {
         this.__pending = false;
         this.ready.resolve();
       })
-      .catch((error) => {
+      .catch(error => {
         this.ready.reject(error);
       });
   }
@@ -47,21 +51,13 @@ export class FsaNodeWriteStream extends Writable implements IWriteStream {
     return this.__pending;
   }
 
-  public close(): void {
-
-  }
+  public close(): void {}
 
   // ----------------------------------------------------------------- Writable
 
-  _write(chunk: any, encoding: string, callback: (error?: Error | null) => void): void {
-
-  }
-
-  _writev(chunks: Array<{ chunk: any, encoding: string }>, callback: (error?: Error | null) => void): void {
-
-  }
+  _write(chunk: any, encoding: string, callback: (error?: Error | null) => void): void {}
 
-  _final(callback: (error?: Error | null) => void): void {
+  _writev(chunks: Array<{ chunk: any; encoding: string }>, callback: (error?: Error | null) => void): void {}
 
-  }
+  _final(callback: (error?: Error | null) => void): void {}
 }
diff --git a/src/fsa-to-node/__tests__/FsaNodeFs.test.ts b/src/fsa-to-node/__tests__/FsaNodeFs.test.ts
index 8dd1e0e3f..971b357d2 100644
--- a/src/fsa-to-node/__tests__/FsaNodeFs.test.ts
+++ b/src/fsa-to-node/__tests__/FsaNodeFs.test.ts
@@ -367,10 +367,7 @@ describe('.writev()', () => {
       }),
     );
     const [bytesWritten, data] = await new Promise<[number, any]>((resolve, reject) => {
-      const buffers = [
-        Buffer.from('a'),
-        Buffer.from('b'),
-      ];
+      const buffers = [Buffer.from('a'), Buffer.from('b')];
       fs.writev(fd, buffers, (err, bytesWritten, data) => {
         if (err) reject(err);
         else resolve([bytesWritten!, data]);
diff --git a/src/volume.ts b/src/volume.ts
index 22c41b7de..9750004ac 100644
--- a/src/volume.ts
+++ b/src/volume.ts
@@ -50,7 +50,7 @@ import {
   bufferToEncoding,
 } from './node/util';
 import type { PathLike, symlink } from 'fs';
-import {WritevCallback} from './node/types/callback';
+import { WritevCallback } from './node/types/callback';
 
 const resolveCrossPlatform = pathModule.resolve;
 const {