diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1bb562ed..d78fa3d7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,7 +35,7 @@ jobs:
     name: Tests
     strategy:
       matrix:
-        node-version: ['14.x', '16.x', '18.x', '19.x']
+        node-version: ['16.x', '18.x', '20.x']
         mongo-version: ['5.0', '6.0']
         include:
           - node-version: 'lts/*'
@@ -65,7 +65,7 @@ jobs:
           REDIS_URL: '127.0.0.1:6379'
           MONGODB_HOST: '127.0.0.1:27017'
       - name: Submit coverage
-        if: matrix.node-version == '18.x'
+        if: matrix.node-version == '20.x'
         uses: coverallsapp/github-action@v2.2.0
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}
diff --git a/Dockerfile b/Dockerfile
index 673547e0..e8a11abd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 # Environment variables must be provided from the outside, eg. using docker-compose.
 # Do `docker container run $THIS_IMAGE --help` to see the list.
 
-FROM node:18-alpine
+FROM node:20-alpine
 
 WORKDIR /u-wave-core
 
diff --git a/bin/u-wave-core.js b/bin/u-wave-core.js
index a4c43aaf..c58fc052 100755
--- a/bin/u-wave-core.js
+++ b/bin/u-wave-core.js
@@ -1,7 +1,6 @@
 #!/usr/bin/env node
 
 /* eslint-disable no-console,no-process-exit */
-import 'make-promises-safe';
 import fs from 'node:fs';
 import explain from 'explain-error';
 import Ajv from 'ajv';
diff --git a/dev/u-wave-dev-server.js b/dev/u-wave-dev-server.js
index 560fe303..8eae63ee 100755
--- a/dev/u-wave-dev-server.js
+++ b/dev/u-wave-dev-server.js
@@ -1,4 +1,3 @@
-import 'make-promises-safe';
 import minimist from 'minimist';
 import concat from 'concat-stream';
 import explain from 'explain-error';
diff --git a/package.json b/package.json
index a5f49bef..5650a947 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "u-wave-core": "bin/u-wave-core.js"
   },
   "engines": {
-    "node": ">= 14.17.0"
+    "node": ">= 16.20.0"
   },
   "dependencies": {
     "@twurple/api": "^6.0.6",
@@ -45,7 +45,6 @@
     "json-merge-patch": "^1.0.2",
     "jsonwebtoken": "^9.0.0",
     "lodash": "^4.17.15",
-    "make-promises-safe": "^5.1.0",
     "minimist": "^1.2.5",
     "mongoose": "^7.0.1",
     "ms": "^2.1.2",
@@ -71,7 +70,7 @@
     "yaml": "^2.0.0"
   },
   "devDependencies": {
-    "@tsconfig/node16": "^1.0.3",
+    "@tsconfig/node16": "^16.1.0",
     "@types/bcryptjs": "^2.4.2",
     "@types/cookie": "^0.5.0",
     "@types/cookie-parser": "^1.4.2",
@@ -93,7 +92,6 @@
     "@types/qs": "^6.9.6",
     "@types/random-string": "^0.0.28",
     "@types/ratelimiter": "^3.4.1",
-    "@types/redlock": "^4.0.1",
     "@types/sinon": "^10.0.2",
     "@types/supertest": "^2.0.11",
     "@types/ultron": "^1.1.0",
diff --git a/src/AuthRegistry.js b/src/AuthRegistry.js
index 98cc53d1..1345584f 100644
--- a/src/AuthRegistry.js
+++ b/src/AuthRegistry.js
@@ -15,7 +15,7 @@ class AuthRegistry {
   }
 
   /**
-   * @param {import('./models').User} user
+   * @param {import('./models/index.js').User} user
    */
   async createAuthToken(user) {
     const token = (await randomBytes(64)).toString('hex');
diff --git a/src/HttpApi.js b/src/HttpApi.js
index 5330b1c4..2591e0bd 100644
--- a/src/HttpApi.js
+++ b/src/HttpApi.js
@@ -1,12 +1,12 @@
 import fs from 'node:fs';
+import http from 'node:http';
 import { randomUUID } from 'node:crypto';
 import express from 'express';
 import bodyParser from 'body-parser';
 import cookieParser from 'cookie-parser';
 import cors from 'cors';
 import helmet from 'helmet';
-import http from 'node:http';
-import pinoHttp from 'pino-http';
+import { pinoHttp } from 'pino-http';
 
 // routes
 import authenticate from './routes/authenticate.js';
@@ -70,7 +70,7 @@ function defaultCreatePasswordResetEmail({ token, requestUrl }) {
  */
 
 /**
- * @param {import('./Uwave').Boot} uw
+ * @param {import('./Uwave.js').Boot} uw
  * @param {HttpApiOptions} options
  */
 async function httpApi(uw, options) {
@@ -158,7 +158,7 @@ async function httpApi(uw, options) {
 }
 
 /**
- * @param {import('./Uwave').Boot} uw
+ * @param {import('./Uwave.js').Boot} uw
  */
 async function errorHandling(uw) {
   uw.logger.debug({ ns: 'uwave:http-api' }, 'setup HTTP error handling');
diff --git a/src/SocketServer.js b/src/SocketServer.js
index 68e5baff..a378b99b 100644
--- a/src/SocketServer.js
+++ b/src/SocketServer.js
@@ -16,7 +16,7 @@ import { serializeUser } from './utils/serialize.js';
 const { debounce, isEmpty } = lodash;
 
 /**
- * @typedef {import('./models').User} User
+ * @typedef {import('./models/index.js').User} User
  */
 
 /**
@@ -59,7 +59,7 @@ function has(object, property) {
 
 class SocketServer {
   /**
-   * @param {import('./Uwave').Boot} uw
+   * @param {import('./Uwave.js').Boot} uw
    * @param {{ secret: Buffer|string }} options
    */
   static async plugin(uw, options) {
@@ -114,14 +114,14 @@ class SocketServer {
   /**
    * Handlers for commands that come in from the server side.
    *
-   * @type {import('./redisMessages').ServerActions}
+   * @type {import('./redisMessages.js').ServerActions}
    */
   #serverActions;
 
   /**
    * Create a socket server.
    *
-   * @param {import('./Uwave').default} uw üWave Core instance.
+   * @param {import('./Uwave.js').default} uw üWave Core instance.
    * @param {object} options Socket server options.
    * @param {number} [options.timeout] Time in seconds to wait for disconnected
    *     users to reconnect before removing them.
@@ -143,7 +143,7 @@ class SocketServer {
     this.#redisSubscription = uw.redis.duplicate();
 
     this.options = {
-      /** @type {(_socket: import('ws') | undefined, err: Error) => void} */
+      /** @type {(_socket: import('ws').WebSocket | undefined, err: Error) => void} */
       onError: (_socket, err) => {
         throw err;
       },
@@ -453,7 +453,7 @@ class SocketServer {
   }
 
   /**
-   * @param {import('ws')} socket
+   * @param {import('ws').WebSocket} socket
    * @param {import('http').IncomingMessage} request
    * @private
    */
@@ -467,7 +467,7 @@ class SocketServer {
   }
 
   /**
-   * @param {import('ws')} socket
+   * @param {import('ws').WebSocket} socket
    * @param {Error} error
    * @private
    */
@@ -502,7 +502,7 @@ class SocketServer {
   /**
    * Create a connection instance for an unauthenticated user.
    *
-   * @param {import('ws')} socket
+   * @param {import('ws').WebSocket} socket
    * @private
    */
   createGuestConnection(socket) {
diff --git a/src/Source.js b/src/Source.js
index f24fe9a8..6e912d43 100644
--- a/src/Source.js
+++ b/src/Source.js
@@ -1,9 +1,9 @@
 import { SourceNoImportError } from './errors/index.js';
 
 /**
- * @typedef {import('./models').User} User
- * @typedef {import('./models').Playlist} Playlist
- * @typedef {import('./plugins/playlists').PlaylistItemDesc} PlaylistItemDesc
+ * @typedef {import('./models/index.js').User} User
+ * @typedef {import('./models/index.js').Playlist} Playlist
+ * @typedef {import('./plugins/playlists.js').PlaylistItemDesc} PlaylistItemDesc
  */
 
 /**
@@ -34,7 +34,7 @@ import { SourceNoImportError } from './errors/index.js';
  */
 class SourceContext {
   /**
-   * @param {import('./Uwave').default} uw
+   * @param {import('./Uwave.js').default} uw
    * @param {Source} source
    * @param {User} user
    */
@@ -79,7 +79,7 @@ class ImportContext extends SourceContext {
  */
 class Source {
   /**
-   * @param {import('./Uwave').default} uw
+   * @param {import('./Uwave.js').default} uw
    * @param {string} sourceType
    * @param {SourcePlugin} sourcePlugin
    */
diff --git a/src/Uwave.js b/src/Uwave.js
index 579187d3..5526c7d3 100644
--- a/src/Uwave.js
+++ b/src/Uwave.js
@@ -26,7 +26,7 @@ const DEFAULT_MONGO_URL = 'mongodb://localhost:27017/uwave';
 const DEFAULT_REDIS_URL = 'redis://localhost:6379';
 
 /**
- * @typedef {import('./Source').SourcePlugin} SourcePlugin
+ * @typedef {import('./Source.js').SourcePlugin} SourcePlugin
  */
 
 /**
@@ -40,7 +40,7 @@ const DEFAULT_REDIS_URL = 'redis://localhost:6379';
  *   mongo?: string,
  *   redis?: string | RedisOptions,
  *   logger?: import('pino').LoggerOptions,
- * } & import('./HttpApi').HttpApiOptions} Options
+ * } & import('./HttpApi.js').HttpApiOptions} Options
  */
 
 class UwaveServer extends EventEmitter {
@@ -55,66 +55,66 @@ class UwaveServer extends EventEmitter {
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   express;
 
-  /** @type {import('./models').Models} */
+  /** @type {import('./models/index.js').Models} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   models;
 
-  /** @type {import('./plugins/acl').Acl} */
+  /** @type {import('./plugins/acl.js').Acl} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   acl;
 
-  /** @type {import('./plugins/bans').Bans} */
+  /** @type {import('./plugins/bans.js').Bans} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   bans;
 
-  /** @type {import('./plugins/booth').Booth} */
+  /** @type {import('./plugins/booth.js').Booth} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   booth;
 
-  /** @type {import('./plugins/chat').Chat} */
+  /** @type {import('./plugins/chat.js').Chat} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   chat;
 
-  /** @type {import('./plugins/configStore').ConfigStore} */
+  /** @type {import('./plugins/configStore.js').ConfigStore} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   config;
 
-  /** @type {import('./plugins/emotes').Emotes|null} */
+  /** @type {import('./plugins/emotes.js').Emotes|null} */
   emotes = null;
 
-  /** @type {import('./plugins/history').HistoryRepository} */
+  /** @type {import('./plugins/history.js').HistoryRepository} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   history;
 
-  /** @type {import('./plugins/migrations').Migrate} */
+  /** @type {import('./plugins/migrations.js').Migrate} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   migrate;
 
-  /** @type {import('./plugins/motd').MOTD} */
+  /** @type {import('./plugins/motd.js').MOTD} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   motd;
 
-  /** @type {import('./plugins/passport').Passport} */
+  /** @type {import('./plugins/passport.js').Passport} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   passport;
 
-  /** @type {import('./plugins/playlists').PlaylistsRepository} */
+  /** @type {import('./plugins/playlists.js').PlaylistsRepository} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   playlists;
 
-  /** @type {import('./plugins/users').UsersRepository} */
+  /** @type {import('./plugins/users.js').UsersRepository} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   users;
 
-  /** @type {import('./plugins/waitlist').Waitlist} */
+  /** @type {import('./plugins/waitlist.js').Waitlist} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   waitlist;
 
-  /** @type {import('./HttpApi').HttpApi} */
+  /** @type {import('./HttpApi.js').HttpApi} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   httpApi;
 
-  /** @type {import('./SocketServer').default} */
+  /** @type {import('./SocketServer.js').default} */
   // @ts-expect-error TS2564 Definitely assigned in a plugin
   socketServer;
 
@@ -304,9 +304,9 @@ class UwaveServer extends EventEmitter {
   /**
    * Publish an event to the üWave channel.
    *
-   * @template {keyof import('./redisMessages').ServerActionParameters} CommandName
+   * @template {keyof import('./redisMessages.js').ServerActionParameters} CommandName
    * @param {CommandName} command
-   * @param {import('./redisMessages').ServerActionParameters[CommandName]} data
+   * @param {import('./redisMessages.js').ServerActionParameters[CommandName]} data
    */
   publish(command, data) {
     this.redis.publish('uwave', JSON.stringify({
diff --git a/src/auth/JWTStrategy.js b/src/auth/JWTStrategy.js
index 837048b6..fdf551ab 100644
--- a/src/auth/JWTStrategy.js
+++ b/src/auth/JWTStrategy.js
@@ -3,7 +3,7 @@ import { Strategy } from 'passport';
 import jwt from 'jsonwebtoken';
 import { BannedError } from '../errors/index.js';
 
-/** @typedef {import('../models').User} User */
+/** @typedef {import('../models/index.js').User} User */
 
 /**
  * @param {Record<string, string>} cookies
diff --git a/src/controllers/acl.js b/src/controllers/acl.js
index 2b137f06..4050cff9 100644
--- a/src/controllers/acl.js
+++ b/src/controllers/acl.js
@@ -1,7 +1,7 @@
 import toItemResponse from '../utils/toItemResponse.js';
 
 /**
- * @type {import('../types').AuthenticatedController}
+ * @type {import('../types.js').AuthenticatedController}
  */
 async function list(req) {
   const { acl } = req.uwave;
@@ -22,7 +22,7 @@ async function list(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<CreateRoleParams, {}, CreateRoleBody>}
+ * @type {import('../types.js').AuthenticatedController<CreateRoleParams, {}, CreateRoleBody>}
  */
 async function createRole(req, res) {
   const { name } = req.params;
@@ -38,7 +38,7 @@ async function createRole(req, res) {
 }
 
 /**
- * @type {import('../types').AuthenticatedController}
+ * @type {import('../types.js').AuthenticatedController}
  */
 async function deleteRole(req) {
   const { name } = req.params;
diff --git a/src/controllers/authenticate.js b/src/controllers/authenticate.js
index 308df162..53dece86 100644
--- a/src/controllers/authenticate.js
+++ b/src/controllers/authenticate.js
@@ -41,7 +41,7 @@ function seconds(str) {
 }
 
 /**
- * @type {import('../types').Controller}
+ * @type {import('../types.js').Controller}
  */
 async function getCurrentUser(req) {
   return toItemResponse(req.user ?? null, {
@@ -50,7 +50,7 @@ async function getCurrentUser(req) {
 }
 
 /**
- * @type {import('../types').Controller}
+ * @type {import('../types.js').Controller}
  */
 async function getAuthStrategies(req) {
   const { passport } = req.uwave;
@@ -65,8 +65,8 @@ async function getAuthStrategies(req) {
 
 /**
  * @param {import('express').Response} res
- * @param {import('../HttpApi').HttpApi} api
- * @param {import('../models').User} user
+ * @param {import('../HttpApi.js').HttpApi} api
+ * @param {import('../models/index.js').User} user
  * @param {AuthenticateOptions & { session: 'cookie' | 'token' }} options
  */
 async function refreshSession(res, api, user, options) {
@@ -99,7 +99,7 @@ async function refreshSession(res, api, user, options) {
  * @typedef {object} LoginQuery
  * @prop {'cookie'|'token'} [session]
  *
- * @param {import('../types').AuthenticatedRequest<{}, LoginQuery, {}> & WithAuthOptions} req
+ * @param {import('../types.js').AuthenticatedRequest<{}, LoginQuery, {}> & WithAuthOptions} req
  * @param {import('express').Response} res
  */
 async function login(req, res) {
@@ -128,14 +128,14 @@ async function login(req, res) {
 }
 
 /**
- * @param {import('../Uwave').default} uw
- * @param {import('../models').User} user
+ * @param {import('../Uwave.js').default} uw
+ * @param {import('../models/index.js').User} user
  * @param {string} service
  */
 async function getSocialAvatar(uw, user, service) {
   const { Authentication } = uw.models;
 
-  /** @type {import('../models').Authentication|null} */
+  /** @type {import('../models/index.js').Authentication|null} */
   const auth = await Authentication.findOne({
     user: user._id,
     type: service,
@@ -148,7 +148,7 @@ async function getSocialAvatar(uw, user, service) {
 
 /**
  * @param {string} service
- * @param {import('../types').AuthenticatedRequest & WithAuthOptions} req
+ * @param {import('../types.js').AuthenticatedRequest & WithAuthOptions} req
  * @param {import('express').Response} res
  */
 async function socialLoginCallback(service, req, res) {
@@ -221,7 +221,7 @@ async function socialLoginCallback(service, req, res) {
 
 /**
  * @param {string} service
- * @param {import('../types').Request<{}, SocialLoginFinishQuery, SocialLoginFinishBody> &
+ * @param {import('../types.js').Request<{}, SocialLoginFinishQuery, SocialLoginFinishBody> &
  *         WithAuthOptions} req
  * @param {import('express').Response} res
  */
@@ -271,7 +271,7 @@ async function socialLoginFinish(service, req, res) {
 }
 
 /**
- * @type {import('../types').AuthenticatedController}
+ * @type {import('../types.js').AuthenticatedController}
  */
 async function getSocketToken(req) {
   const { user } = req;
@@ -320,7 +320,7 @@ async function verifyCaptcha(responseString, options) {
  */
 
 /**
- * @param {import('../types').Request<{}, {}, RegisterBody> & WithAuthOptions} req
+ * @param {import('../types.js').Request<{}, {}, RegisterBody> & WithAuthOptions} req
  */
 async function register(req) {
   const { users } = req.uwave;
@@ -360,7 +360,7 @@ async function register(req) {
  */
 
 /**
- * @param {import('../types').Request<{}, {}, RequestPasswordResetBody> & WithAuthOptions} req
+ * @param {import('../types.js').Request<{}, {}, RequestPasswordResetBody> & WithAuthOptions} req
  */
 async function reset(req) {
   const uw = req.uwave;
@@ -402,7 +402,7 @@ async function reset(req) {
  */
 
 /**
- * @type {import('../types').Controller<ChangePasswordParams, {}, ChangePasswordBody>}
+ * @type {import('../types.js').Controller<ChangePasswordParams, {}, ChangePasswordBody>}
  */
 async function changePassword(req) {
   const { users, redis } = req.uwave;
@@ -431,7 +431,7 @@ async function changePassword(req) {
 }
 
 /**
- * @param {import('../types').AuthenticatedRequest<{}, {}, {}> & WithAuthOptions} req
+ * @param {import('../types.js').AuthenticatedRequest<{}, {}, {}> & WithAuthOptions} req
  * @param {import('express').Response} res
  */
 async function logout(req, res) {
diff --git a/src/controllers/bans.js b/src/controllers/bans.js
index 50aa4610..5b1063af 100644
--- a/src/controllers/bans.js
+++ b/src/controllers/bans.js
@@ -9,7 +9,7 @@ import toPaginatedResponse from '../utils/toPaginatedResponse.js';
  */
 
 /**
- * @type {import('../types').AuthenticatedController<{}, GetBansQuery>}
+ * @type {import('../types.js').AuthenticatedController<{}, GetBansQuery>}
  */
 async function getBans(req) {
   const { bans } = req.uwave;
@@ -35,7 +35,7 @@ async function getBans(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<{}, {}, AddBanBody>}
+ * @type {import('../types.js').AuthenticatedController<{}, {}, AddBanBody>}
  */
 async function addBan(req) {
   const { user: moderator } = req;
@@ -70,7 +70,7 @@ async function addBan(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<RemoveBanParams>}
+ * @type {import('../types.js').AuthenticatedController<RemoveBanParams>}
  */
 async function removeBan(req) {
   const { user: moderator } = req;
diff --git a/src/controllers/booth.js b/src/controllers/booth.js
index c54e8e04..91a34d7a 100644
--- a/src/controllers/booth.js
+++ b/src/controllers/booth.js
@@ -15,7 +15,7 @@ import toPaginatedResponse from '../utils/toPaginatedResponse.js';
 const { ObjectId } = mongoose.Types;
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 async function getBoothData(uw) {
   const { booth } = uw;
@@ -43,7 +43,7 @@ async function getBoothData(uw) {
 }
 
 /**
- * @type {import('../types').Controller}
+ * @type {import('../types.js').Controller}
  */
 async function getBooth(req) {
   const uw = req.uwave;
@@ -54,7 +54,7 @@ async function getBooth(req) {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  * @returns {Promise<string|null>}
  */
 function getCurrentDJ(uw) {
@@ -62,7 +62,7 @@ function getCurrentDJ(uw) {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  * @param {string|null} moderatorID - `null` if a user is skipping their own turn.
  * @param {string} userID
  * @param {string|null} reason
@@ -93,7 +93,7 @@ async function doSkip(uw, moderatorID, userID, reason, opts = {}) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<{}, {}, SkipBoothBody>}
+ * @type {import('../types.js').AuthenticatedController<{}, {}, SkipBoothBody>}
  */
 async function skipBooth(req) {
   const { user } = req;
@@ -131,7 +131,7 @@ async function skipBooth(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<{}, {}, ReplaceBoothBody>}
+ * @type {import('../types.js').AuthenticatedController<{}, {}, ReplaceBoothBody>}
  */
 async function replaceBooth(req) {
   const uw = req.uwave;
@@ -160,7 +160,7 @@ async function replaceBooth(req) {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  * @param {string} userID
  * @param {1|-1} direction
  */
@@ -189,7 +189,7 @@ async function addVote(uw, userID, direction) {
 /**
  * Old way of voting: over the WebSocket
  *
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  * @param {string} userID
  * @param {1|-1} direction
  */
@@ -212,7 +212,7 @@ async function socketVote(uw, userID, direction) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<GetVoteParams>}
+ * @type {import('../types.js').AuthenticatedController<GetVoteParams>}
  */
 async function getVote(req) {
   const { uwave: uw, user } = req;
@@ -253,7 +253,7 @@ async function getVote(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<VoteParams, {}, VoteBody>}
+ * @type {import('../types.js').AuthenticatedController<VoteParams, {}, VoteBody>}
  */
 async function vote(req) {
   const { uwave: uw, user } = req;
@@ -290,7 +290,7 @@ async function vote(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<{}, {}, FavoriteBody>}
+ * @type {import('../types.js').AuthenticatedController<{}, {}, FavoriteBody>}
  */
 async function favorite(req) {
   const { user } = req;
@@ -339,10 +339,10 @@ async function favorite(req) {
 
 /**
  * @typedef {object} GetRoomHistoryQuery
- * @prop {import('../types').PaginationQuery & { media?: string }} [filter]
+ * @prop {import('../types.js').PaginationQuery & { media?: string }} [filter]
  */
 /**
- * @type {import('../types').Controller<never, GetRoomHistoryQuery, never>}
+ * @type {import('../types.js').Controller<never, GetRoomHistoryQuery, never>}
  */
 async function getHistory(req) {
   const filter = {};
diff --git a/src/controllers/chat.js b/src/controllers/chat.js
index 6fc4016a..f07e51eb 100644
--- a/src/controllers/chat.js
+++ b/src/controllers/chat.js
@@ -10,7 +10,7 @@ import toItemResponse from '../utils/toItemResponse.js';
  */
 
 /**
- * @type {import('../types').AuthenticatedController<MuteUserParams, {}, MuteUserBody>}
+ * @type {import('../types.js').AuthenticatedController<MuteUserParams, {}, MuteUserBody>}
  */
 async function muteUser(req) {
   const { user: moderator } = req;
@@ -36,7 +36,7 @@ async function muteUser(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<UnmuteUserParams>}
+ * @type {import('../types.js').AuthenticatedController<UnmuteUserParams>}
  */
 async function unmuteUser(req) {
   const { user: moderator } = req;
@@ -56,7 +56,7 @@ async function unmuteUser(req) {
 }
 
 /**
- * @type {import('../types').AuthenticatedController}
+ * @type {import('../types.js').AuthenticatedController}
  */
 async function deleteAll(req) {
   const { user: moderator } = req;
@@ -73,7 +73,7 @@ async function deleteAll(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<DeleteByUserParams>}
+ * @type {import('../types.js').AuthenticatedController<DeleteByUserParams>}
  */
 async function deleteByUser(req) {
   const { user: moderator } = req;
@@ -91,7 +91,7 @@ async function deleteByUser(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<DeleteMessageParams>}
+ * @type {import('../types.js').AuthenticatedController<DeleteMessageParams>}
  */
 async function deleteMessage(req) {
   const { user: moderator } = req;
diff --git a/src/controllers/emotes.js b/src/controllers/emotes.js
index a756764d..f6ed8ce4 100644
--- a/src/controllers/emotes.js
+++ b/src/controllers/emotes.js
@@ -1,7 +1,7 @@
 import toListResponse from '../utils/toListResponse.js';
 
 /**
- * @type {import('../types').Controller}
+ * @type {import('../types.js').Controller}
  */
 async function getEmotes(req) {
   const { emotes } = req.uwave;
diff --git a/src/controllers/import.js b/src/controllers/import.js
index dbbf2e08..e34bb443 100644
--- a/src/controllers/import.js
+++ b/src/controllers/import.js
@@ -1,7 +1,7 @@
 import { SourceNotFoundError, SourceNoImportError, APIError } from '../errors/index.js';
 
 /**
- * @param {import('../types').Request} req
+ * @param {import('../types.js').Request} req
  */
 const getImportableSource = (req) => {
   const uw = req.uwave;
@@ -19,7 +19,7 @@ const getImportableSource = (req) => {
 };
 
 /**
- * @param {import('../types').Request} req
+ * @param {import('../types.js').Request} req
  */
 const mergeImportParameters = (req) => ({
   ...req.query,
@@ -28,7 +28,7 @@ const mergeImportParameters = (req) => ({
 });
 
 /**
- * @type {import('../types').AuthenticatedController}
+ * @type {import('../types.js').AuthenticatedController}
  */
 async function importAction(req) {
   const source = getImportableSource(req);
diff --git a/src/controllers/motd.js b/src/controllers/motd.js
index 29c706f0..771ea531 100644
--- a/src/controllers/motd.js
+++ b/src/controllers/motd.js
@@ -1,7 +1,7 @@
 import toItemResponse from '../utils/toItemResponse.js';
 
 /**
- * @type {import('../types').Controller<{}, {}, {}>}
+ * @type {import('../types.js').Controller<{}, {}, {}>}
  */
 async function getMotd(req) {
   const { motd } = req.uwave;
@@ -15,7 +15,7 @@ async function getMotd(req) {
 }
 
 /**
- * @type {import('../types').AuthenticatedController<{}, {}, { motd: string | null }>}
+ * @type {import('../types.js').AuthenticatedController<{}, {}, { motd: string | null }>}
  */
 async function setMotd(req, res) {
   const { motd } = req.uwave;
diff --git a/src/controllers/now.js b/src/controllers/now.js
index c14d4cba..65f1ad1c 100644
--- a/src/controllers/now.js
+++ b/src/controllers/now.js
@@ -5,8 +5,8 @@ import { serializePlaylist, serializeUser } from '../utils/serialize.js';
 const { ObjectId } = mongoose.mongo;
 
 /**
- * @param {import('../Uwave').default} uw
- * @param {Promise<import('../models').Playlist | null>} activePlaylist
+ * @param {import('../Uwave.js').default} uw
+ * @param {Promise<import('../models/index.js').Playlist | null>} activePlaylist
  */
 async function getFirstItem(uw, activePlaylist) {
   try {
@@ -31,13 +31,13 @@ function toInt(str) {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 async function getOnlineUsers(uw) {
   const { User } = uw.models;
 
   const userIDs = await uw.redis.lrange('users', 0, -1);
-  /** @type {Omit<import('../models/User').LeanUser, 'activePlaylist' | 'exiled' | 'level'>[]} */
+  /** @type {Omit<import('../models/User.js').LeanUser, 'activePlaylist' | 'exiled' | 'level'>[]} */
   const users = await User.find({
     _id: {
       $in: userIDs.map((id) => new ObjectId(id)),
@@ -53,7 +53,7 @@ async function getOnlineUsers(uw) {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 async function getGuestsCount(uw) {
   const guests = await uw.redis.get('http-api:guests');
@@ -61,7 +61,7 @@ async function getGuestsCount(uw) {
 }
 
 /**
- * @type {import('../types').Controller}
+ * @type {import('../types.js').Controller}
  */
 async function getState(req) {
   const uw = req.uwave;
diff --git a/src/controllers/playlists.js b/src/controllers/playlists.js
index 5147d6b0..3a165e0a 100644
--- a/src/controllers/playlists.js
+++ b/src/controllers/playlists.js
@@ -14,7 +14,7 @@ const { ObjectId } = mongoose.mongo;
  */
 
 /**
- * @type {import('../types').AuthenticatedController<{}, GetPlaylistsQuery>}
+ * @type {import('../types.js').AuthenticatedController<{}, GetPlaylistsQuery>}
  */
 async function getPlaylists(req) {
   const { user } = req;
@@ -42,7 +42,7 @@ async function getPlaylists(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<GetPlaylistParams>}
+ * @type {import('../types.js').AuthenticatedController<GetPlaylistParams>}
  */
 async function getPlaylist(req) {
   const { user } = req;
@@ -67,7 +67,7 @@ async function getPlaylist(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<{}, {}, CreatePlaylistBody>}
+ * @type {import('../types.js').AuthenticatedController<{}, {}, CreatePlaylistBody>}
  */
 async function createPlaylist(req) {
   const { user } = req;
@@ -95,7 +95,7 @@ async function createPlaylist(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<DeletePlaylistParams>}
+ * @type {import('../types.js').AuthenticatedController<DeletePlaylistParams>}
  */
 async function deletePlaylist(req) {
   const { user } = req;
@@ -122,7 +122,8 @@ const patchableKeys = ['name', 'description'];
  */
 
 /**
- * @type {import('../types').AuthenticatedController<UpdatePlaylistParams, {}, UpdatePlaylistBody>}
+ * @type {import('../types.js').AuthenticatedController<
+ *     UpdatePlaylistParams, {}, UpdatePlaylistBody>}
  */
 async function updatePlaylist(req) {
   const { user } = req;
@@ -159,7 +160,8 @@ async function updatePlaylist(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<RenamePlaylistParams, {}, RenamePlaylistBody>}
+ * @type {import('../types.js').AuthenticatedController<
+ *     RenamePlaylistParams, {}, RenamePlaylistBody>}
  */
 async function renamePlaylist(req) {
   const { user } = req;
@@ -186,7 +188,7 @@ async function renamePlaylist(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<ActivatePlaylistParams>}
+ * @type {import('../types.js').AuthenticatedController<ActivatePlaylistParams>}
  */
 async function activatePlaylist(req) {
   const { user } = req;
@@ -208,11 +210,12 @@ async function activatePlaylist(req) {
  * @typedef {object} GetPlaylistItemsParams
  * @prop {string} id
  *
- * @typedef {import('../types').PaginationQuery & { filter?: string }} GetPlaylistItemsQuery
+ * @typedef {import('../types.js').PaginationQuery & { filter?: string }} GetPlaylistItemsQuery
  */
 
 /**
- * @type {import('../types').AuthenticatedController<GetPlaylistItemsParams, GetPlaylistItemsQuery>}
+ * @type {import('../types.js').AuthenticatedController<
+ *     GetPlaylistItemsParams, GetPlaylistItemsQuery>}
  */
 async function getPlaylistItems(req) {
   const { user } = req;
@@ -237,7 +240,7 @@ async function getPlaylistItems(req) {
 }
 
 /**
- * @typedef {import('../plugins/playlists').PlaylistItemDesc} PlaylistItemDesc
+ * @typedef {import('../plugins/playlists.js').PlaylistItemDesc} PlaylistItemDesc
  *
  * @typedef {object} AddPlaylistItemsParams
  * @prop {string} id
@@ -254,7 +257,7 @@ async function getPlaylistItems(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<
+ * @type {import('../types.js').AuthenticatedController<
  *     AddPlaylistItemsParams, {}, AddPlaylistItemsBody>}
  */
 async function addPlaylistItems(req) {
@@ -304,7 +307,7 @@ async function addPlaylistItems(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<
+ * @type {import('../types.js').AuthenticatedController<
  *     RemovePlaylistItemsParams, {}, RemovePlaylistItemsBody>}
  */
 async function removePlaylistItems(req) {
@@ -335,7 +338,7 @@ async function removePlaylistItems(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<
+ * @type {import('../types.js').AuthenticatedController<
  *     MovePlaylistItemsParams, {}, MovePlaylistItemsBody>}
  */
 async function movePlaylistItems(req) {
@@ -371,7 +374,7 @@ async function movePlaylistItems(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<ShufflePlaylistItemsParams>}
+ * @type {import('../types.js').AuthenticatedController<ShufflePlaylistItemsParams>}
  */
 async function shufflePlaylistItems(req) {
   const { user } = req;
@@ -395,7 +398,7 @@ async function shufflePlaylistItems(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<GetPlaylistItemParams>}
+ * @type {import('../types.js').AuthenticatedController<GetPlaylistItemParams>}
  */
 async function getPlaylistItem(req) {
   const { user } = req;
@@ -428,7 +431,7 @@ async function getPlaylistItem(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<
+ * @type {import('../types.js').AuthenticatedController<
  *     UpdatePlaylistItemParams, {}, UpdatePlaylistItemBody>}
  */
 async function updatePlaylistItem(req) {
@@ -464,7 +467,7 @@ async function updatePlaylistItem(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<RemovePlaylistItemParams>}
+ * @type {import('../types.js').AuthenticatedController<RemovePlaylistItemParams>}
  */
 async function removePlaylistItem(req) {
   const { user } = req;
diff --git a/src/controllers/search.js b/src/controllers/search.js
index 7fe498e1..6d39735f 100644
--- a/src/controllers/search.js
+++ b/src/controllers/search.js
@@ -5,13 +5,13 @@ import toListResponse from '../utils/toListResponse.js';
 const { isEqual } = lodash;
 
 /** @typedef {import('mongodb').ObjectId} ObjectId */
-/** @typedef {import('../models').Playlist} Playlist */
-/** @typedef {import('../models').Media} Media */
-/** @typedef {import('../plugins/playlists').PlaylistItemDesc} PlaylistItemDesc */
+/** @typedef {import('../models/index.js').Playlist} Playlist */
+/** @typedef {import('../models/index.js').Media} Media */
+/** @typedef {import('../plugins/playlists.js').PlaylistItemDesc} PlaylistItemDesc */
 
 // TODO should be deprecated once the Web client uses the better single-source route.
 /**
- * @type {import('../types').AuthenticatedController<never, SearchQuery, never>}
+ * @type {import('../types.js').AuthenticatedController<never, SearchQuery, never>}
  */
 async function searchAll(req) {
   const { user } = req;
@@ -36,7 +36,7 @@ async function searchAll(req) {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  * @param {Map<ObjectId, Media['sourceData']>} updates
  */
 async function updateSourceData(uw, updates) {
@@ -66,7 +66,7 @@ async function updateSourceData(uw, updates) {
 */
 
 /**
- * @type {import('../types').AuthenticatedController<SearchParams, SearchQuery, never>}
+ * @type {import('../types.js').AuthenticatedController<SearchParams, SearchQuery, never>}
  */
 async function search(req) {
   const { user } = req;
diff --git a/src/controllers/server.js b/src/controllers/server.js
index 16f82f54..5351b20d 100644
--- a/src/controllers/server.js
+++ b/src/controllers/server.js
@@ -1,7 +1,7 @@
 import toItemResponse from '../utils/toItemResponse.js';
 
 /**
- * @type {import('../types').Controller}
+ * @type {import('../types.js').Controller}
  */
 async function getServerTime(req) {
   return toItemResponse({
@@ -10,7 +10,7 @@ async function getServerTime(req) {
 }
 
 /**
- * @type {import('../types').AuthenticatedController}
+ * @type {import('../types.js').AuthenticatedController}
  */
 async function getAllConfig(req) {
   const { config } = req.uwave;
@@ -24,7 +24,7 @@ async function getAllConfig(req) {
 }
 
 /**
- * @type {import('../types').AuthenticatedController}
+ * @type {import('../types.js').AuthenticatedController}
  */
 async function getConfig(req) {
   const { config } = req.uwave;
@@ -42,7 +42,7 @@ async function getConfig(req) {
 }
 
 /**
- * @type {import('../types').AuthenticatedController}
+ * @type {import('../types.js').AuthenticatedController}
  */
 async function updateConfig(req) {
   const { config } = req.uwave;
diff --git a/src/controllers/users.js b/src/controllers/users.js
index e6af18aa..a5a7155d 100644
--- a/src/controllers/users.js
+++ b/src/controllers/users.js
@@ -18,7 +18,7 @@ import { muteUser, unmuteUser } from './chat.js';
  */
 
 /**
- * @type {import('../types').AuthenticatedController<{}, GetUsersQuery>}
+ * @type {import('../types.js').AuthenticatedController<{}, GetUsersQuery>}
  */
 async function getUsers(req) {
   const { filter } = req.query;
@@ -40,7 +40,7 @@ async function getUsers(req) {
  */
 
 /**
- * @type {import('../types').Controller<GetUserParams>}
+ * @type {import('../types.js').Controller<GetUserParams>}
  */
 async function getUser(req) {
   const { users } = req.uwave;
@@ -62,7 +62,7 @@ async function getUser(req) {
  */
 
 /**
- * @type {import('../types').Controller<GetUserRolesParams>}
+ * @type {import('../types.js').Controller<GetUserRolesParams>}
  */
 async function getUserRoles(req) {
   const { acl, users } = req.uwave;
@@ -87,7 +87,7 @@ async function getUserRoles(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<AddUserRoleParams>}
+ * @type {import('../types.js').AuthenticatedController<AddUserRoleParams>}
  */
 async function addUserRole(req) {
   const { user: moderator } = req;
@@ -118,7 +118,7 @@ async function addUserRole(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<RemoveUserRoleParams>}
+ * @type {import('../types.js').AuthenticatedController<RemoveUserRoleParams>}
  */
 async function removeUserRole(req) {
   const { user: moderator } = req;
@@ -151,7 +151,8 @@ async function removeUserRole(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<ChangeUsernameParams, {}, ChangeUsernameBody>}
+ * @type {import('../types.js').AuthenticatedController<
+ *     ChangeUsernameParams, {}, ChangeUsernameBody>}
  */
 async function changeUsername(req) {
   const { user: moderator } = req;
@@ -180,7 +181,7 @@ async function changeAvatar() {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  * @param {import('mongodb').ObjectId} userID
  */
 async function disconnectUser(uw, userID) {
@@ -203,7 +204,7 @@ async function disconnectUser(uw, userID) {
  */
 
 /**
- * @type {import('../types').Controller<GetHistoryParams>}
+ * @type {import('../types.js').Controller<GetHistoryParams>}
  */
 async function getHistory(req) {
   const { id } = req.params;
diff --git a/src/controllers/waitlist.js b/src/controllers/waitlist.js
index 6c551a07..26ed5026 100644
--- a/src/controllers/waitlist.js
+++ b/src/controllers/waitlist.js
@@ -2,7 +2,7 @@ import toItemResponse from '../utils/toItemResponse.js';
 import toListResponse from '../utils/toListResponse.js';
 
 /**
- * @type {import('../types').Controller}
+ * @type {import('../types.js').Controller}
  */
 async function getWaitlist(req) {
   const { waitlist } = req.uwave;
@@ -21,7 +21,7 @@ async function getWaitlist(req) {
  * POST waitlist/ entry point: used both for joining the waitlist, and for
  * adding someone else to the waitlist.
  *
- * @type {import('../types').AuthenticatedController<{}, {}, AddToWaitlistBody>}
+ * @type {import('../types.js').AuthenticatedController<{}, {}, AddToWaitlistBody>}
  */
 async function addToWaitlist(req) {
   const { user: moderator } = req;
@@ -42,7 +42,7 @@ async function addToWaitlist(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<{}, {}, MoveWaitlistBody>}
+ * @type {import('../types.js').AuthenticatedController<{}, {}, MoveWaitlistBody>}
  */
 async function moveWaitlist(req) {
   const { user: moderator } = req;
@@ -62,7 +62,7 @@ async function moveWaitlist(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<RemoveFromWaitlistParams>}
+ * @type {import('../types.js').AuthenticatedController<RemoveFromWaitlistParams>}
  */
 async function removeFromWaitlist(req) {
   const { user: moderator } = req;
@@ -77,7 +77,7 @@ async function removeFromWaitlist(req) {
 }
 
 /**
- * @type {import('../types').AuthenticatedController}
+ * @type {import('../types.js').AuthenticatedController}
  */
 async function clearWaitlist(req) {
   const { user: moderator } = req;
@@ -96,7 +96,7 @@ async function clearWaitlist(req) {
  */
 
 /**
- * @type {import('../types').AuthenticatedController<{}, {}, LockWaitlistBody>}
+ * @type {import('../types.js').AuthenticatedController<{}, {}, LockWaitlistBody>}
  */
 async function lockWaitlist(req) {
   const { user: moderator } = req;
diff --git a/src/index.js b/src/index.js
index 368574df..ce73beae 100644
--- a/src/index.js
+++ b/src/index.js
@@ -4,7 +4,7 @@ import HttpApi from './HttpApi.js';
 import SocketServer from './SocketServer.js';
 
 /**
- * @param {import('./Uwave').Options} opts
+ * @param {import('./Uwave.js').Options} opts
  * @returns {Uwave}
  */
 export default function uwave(opts) {
diff --git a/src/middleware/attachUwaveMeta.js b/src/middleware/attachUwaveMeta.js
index 25c71f5e..503fa774 100644
--- a/src/middleware/attachUwaveMeta.js
+++ b/src/middleware/attachUwaveMeta.js
@@ -1,7 +1,7 @@
 /**
  *
- * @param {import('../HttpApi').HttpApi} httpApi
- * @param {import('../Uwave').default} uw
+ * @param {import('../HttpApi.js').HttpApi} httpApi
+ * @param {import('../Uwave.js').default} uw
  * @returns {import('express').RequestHandler}
  */
 function attachUwaveMeta(httpApi, uw) {
diff --git a/src/middleware/requireActiveConnection.js b/src/middleware/requireActiveConnection.js
index fa9d4939..19dbdcb6 100644
--- a/src/middleware/requireActiveConnection.js
+++ b/src/middleware/requireActiveConnection.js
@@ -5,8 +5,8 @@ const { BadRequest } = httpErrors;
 
 function requireActiveConnection() {
   /**
-   * @param {import('../Uwave').default} uwave
-   * @param {import('../models').User} user
+   * @param {import('../Uwave.js').default} uwave
+   * @param {import('../models/index.js').User} user
    */
   async function isConnected(uwave, user) {
     const onlineIDs = await uwave.redis.lrange('users', 0, -1);
diff --git a/src/models/index.js b/src/models/index.js
index 3a3cb372..3a0aa7d0 100644
--- a/src/models/index.js
+++ b/src/models/index.js
@@ -9,15 +9,15 @@ import playlistItemSchema from './PlaylistItem.js';
 import userSchema from './User.js';
 
 /**
- * @typedef {import('./AclRole').AclRole} AclRole
- * @typedef {import('./Authentication').Authentication} Authentication
- * @typedef {import('./Config').Config} Config
- * @typedef {import('./History').HistoryEntry} HistoryEntry
- * @typedef {import('./Media').Media} Media
- * @typedef {import('./Migration').Migration} Migration
- * @typedef {import('./Playlist').Playlist} Playlist
- * @typedef {import('./PlaylistItem').PlaylistItem} PlaylistItem
- * @typedef {import('./User').User} User
+ * @typedef {import('./AclRole.js').AclRole} AclRole
+ * @typedef {import('./Authentication.js').Authentication} Authentication
+ * @typedef {import('./Config.js').Config} Config
+ * @typedef {import('./History.js').HistoryEntry} HistoryEntry
+ * @typedef {import('./Media.js').Media} Media
+ * @typedef {import('./Migration.js').Migration} Migration
+ * @typedef {import('./Playlist.js').Playlist} Playlist
+ * @typedef {import('./PlaylistItem.js').PlaylistItem} PlaylistItem
+ * @typedef {import('./User.js').User} User
  * @typedef {{
  *  AclRole: import('mongoose').Model<AclRole, {}, {}>,
  *  Authentication: import('mongoose').Model<Authentication, {}, {}>,
@@ -32,7 +32,7 @@ import userSchema from './User.js';
  */
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 async function models(uw) {
   uw.models = {
diff --git a/src/plugins/acl.js b/src/plugins/acl.js
index bbfbfe3f..5d42b495 100644
--- a/src/plugins/acl.js
+++ b/src/plugins/acl.js
@@ -2,8 +2,8 @@ import defaultRoles from '../config/defaultRoles.js';
 import routes from '../routes/acl.js';
 
 /**
- * @typedef {import('../models').AclRole} AclRole
- * @typedef {import('../models').User} User
+ * @typedef {import('../models/index.js').AclRole} AclRole
+ * @typedef {import('../models/index.js').User} User
  * @typedef {{ roles: AclRole[] }} PopulateRoles
  * @typedef {Omit<AclRole, 'roles'> & PopulateRoles} PopulatedAclRole
  */
@@ -24,7 +24,7 @@ class Acl {
   #logger;
 
   /**
-   * @param {import('../Uwave').default} uw
+   * @param {import('../Uwave.js').default} uw
    */
   constructor(uw) {
     this.#uw = uw;
@@ -224,7 +224,7 @@ class Acl {
 }
 
 /**
- * @param {import('../Uwave').Boot} uw
+ * @param {import('../Uwave.js').Boot} uw
  */
 async function acl(uw) {
   uw.acl = new Acl(uw);
diff --git a/src/plugins/bans.js b/src/plugins/bans.js
index 04544850..ee036a3f 100644
--- a/src/plugins/bans.js
+++ b/src/plugins/bans.js
@@ -6,9 +6,9 @@ import Page from '../Page.js';
 const { clamp, omit } = lodash;
 
 /**
- * @typedef {import('../models').User} User
- * @typedef {import('../models/User').LeanUser} LeanUser
- * @typedef {import('../models/User').LeanBanned} LeanBanned
+ * @typedef {import('../models/index.js').User} User
+ * @typedef {import('../models/User.js').LeanUser} LeanUser
+ * @typedef {import('../models/User.js').LeanBanned} LeanBanned
  * @typedef {LeanBanned & { user: Omit<LeanUser, 'banned'> }} Ban
  */
 
@@ -30,7 +30,7 @@ class Bans {
   #uw;
 
   /**
-   * @param {import('../Uwave').default} uw
+   * @param {import('../Uwave.js').default} uw
    */
   constructor(uw) {
     this.#uw = uw;
@@ -75,7 +75,7 @@ class Bans {
 
     const total = await User.find().where(queryFilter).countDocuments();
 
-    /** @type {(import('../models/User').LeanUser & { banned: LeanBanned })[]} */
+    /** @type {(import('../models/User.js').LeanUser & { banned: LeanBanned })[]} */
     const bannedUsers = await User.find()
       .where(queryFilter)
       .skip(offset)
@@ -167,7 +167,7 @@ class Bans {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 async function bans(uw) {
   uw.bans = new Bans(uw); // eslint-disable-line no-param-reassign
diff --git a/src/plugins/booth.js b/src/plugins/booth.js
index 2549ef24..00d92150 100644
--- a/src/plugins/booth.js
+++ b/src/plugins/booth.js
@@ -8,12 +8,12 @@ const { omit } = lodash;
 
 /**
  * @typedef {import('type-fest').JsonObject} JsonObject
- * @typedef {import('../models').User} User
- * @typedef {import('../models').Playlist} Playlist
- * @typedef {import('../models').PlaylistItem} PlaylistItem
- * @typedef {import('../models').HistoryEntry} HistoryEntry
- * @typedef {import('../models/History').HistoryMedia} HistoryMedia
- * @typedef {import('../models').Media} Media
+ * @typedef {import('../models/index.js').User} User
+ * @typedef {import('../models/index.js').Playlist} Playlist
+ * @typedef {import('../models/index.js').PlaylistItem} PlaylistItem
+ * @typedef {import('../models/index.js').HistoryEntry} HistoryEntry
+ * @typedef {import('../models/History.js').HistoryMedia} HistoryMedia
+ * @typedef {import('../models/index.js').Media} Media
  * @typedef {{ user: User }} PopulateUser
  * @typedef {{ playlist: Playlist }} PopulatePlaylist
  * @typedef {{ media: Omit<HistoryMedia, 'media'> & { media: Media } }} PopulateMedia
@@ -47,7 +47,7 @@ class Booth {
   #awaitAdvance = null;
 
   /**
-   * @param {import('../Uwave').Boot} uw
+   * @param {import('../Uwave.js').Boot} uw
    */
   constructor(uw) {
     this.#uw = uw;
@@ -419,7 +419,7 @@ class Booth {
 }
 
 /**
- * @param {import('../Uwave').Boot} uw
+ * @param {import('../Uwave.js').Boot} uw
  */
 async function boothPlugin(uw) {
   uw.booth = new Booth(uw);
diff --git a/src/plugins/chat.js b/src/plugins/chat.js
index cd288198..fbc9b8eb 100644
--- a/src/plugins/chat.js
+++ b/src/plugins/chat.js
@@ -2,7 +2,7 @@ import { randomUUID } from 'node:crypto';
 import routes from '../routes/chat.js';
 
 /**
- * @typedef {import('../models').User} User
+ * @typedef {import('../models/index.js').User} User
  *
  * @typedef {object} ChatOptions
  * @prop {number} maxLength
@@ -20,7 +20,7 @@ class Chat {
   #options;
 
   /**
-   * @param {import('../Uwave').default} uw
+   * @param {import('../Uwave.js').default} uw
    * @param {Partial<ChatOptions>} [options]
    */
   constructor(uw, options = {}) {
@@ -115,7 +115,7 @@ class Chat {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  * @param {Partial<ChatOptions>} [options]
  */
 async function chat(uw, options = {}) {
diff --git a/src/plugins/configStore.js b/src/plugins/configStore.js
index 9c57d0ba..44db89d2 100644
--- a/src/plugins/configStore.js
+++ b/src/plugins/configStore.js
@@ -9,7 +9,7 @@ import ValidationError from '../errors/ValidationError.js';
 
 const { omit } = lodash;
 
-/** @typedef {import('../models').User} User */
+/** @typedef {import('../models/index.js').User} User */
 
 /**
  * Extensible configuration store.
@@ -33,7 +33,7 @@ class ConfigStore {
   #validators = new Map();
 
   /**
-   * @param {import('../Uwave').Boot} uw
+   * @param {import('../Uwave.js').Boot} uw
    */
   constructor(uw) {
     this.#uw = uw;
@@ -69,7 +69,7 @@ class ConfigStore {
     /**
      * @type {undefined|{
      *   command: string,
-     *   data: import('../redisMessages').ServerActionParameters['configStore:update'],
+     *   data: import('../redisMessages.js').ServerActionParameters['configStore:update'],
      * }}
      */
     const json = sjson.safeParse(rawCommand);
@@ -233,7 +233,7 @@ class ConfigStore {
 }
 
 /**
- * @param {import('../Uwave').Boot} uw
+ * @param {import('../Uwave.js').Boot} uw
  */
 async function configStorePlugin(uw) {
   uw.config = new ConfigStore(uw);
diff --git a/src/plugins/emotes.js b/src/plugins/emotes.js
index cec625aa..4bfc960c 100644
--- a/src/plugins/emotes.js
+++ b/src/plugins/emotes.js
@@ -226,7 +226,7 @@ class Emotes {
   #ready = Promise.resolve();
 
   /**
-   * @param {import('../Uwave').Boot} uw
+   * @param {import('../Uwave.js').Boot} uw
    */
   constructor(uw) {
     this.#uw = uw;
@@ -323,7 +323,7 @@ class Emotes {
 }
 
 /**
- * @param {import('../Uwave').Boot} uw
+ * @param {import('../Uwave.js').Boot} uw
  * @returns {Promise<void>}
  */
 async function emotesPlugin(uw) {
diff --git a/src/plugins/history.js b/src/plugins/history.js
index a08c2724..e2ffd086 100644
--- a/src/plugins/history.js
+++ b/src/plugins/history.js
@@ -7,10 +7,10 @@ const DEFAULT_PAGE_SIZE = 50;
 const MAX_PAGE_SIZE = 100;
 
 /**
- * @typedef {import('../models/History').HistoryMedia} HistoryMedia
- * @typedef {import('../models').HistoryEntry} HistoryEntry
- * @typedef {import('../models').User} User
- * @typedef {import('../models').Media} Media
+ * @typedef {import('../models/History.js').HistoryMedia} HistoryMedia
+ * @typedef {import('../models/index.js').HistoryEntry} HistoryEntry
+ * @typedef {import('../models/index.js').User} User
+ * @typedef {import('../models/index.js').Media} Media
  * @typedef {{ media: Media }} PopulateMedia
  * @typedef {{ user: User }} PopulateUser
  * @typedef {HistoryMedia & PopulateMedia} PopulatedHistoryMedia
@@ -22,7 +22,7 @@ class HistoryRepository {
   #uw;
 
   /**
-   * @param {import('../Uwave').default} uw
+   * @param {import('../Uwave.js').default} uw
    */
   constructor(uw) {
     this.#uw = uw;
@@ -82,7 +82,7 @@ class HistoryRepository {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 async function history(uw) {
   uw.history = new HistoryRepository(uw);
diff --git a/src/plugins/migrations.js b/src/plugins/migrations.js
index c9c554ee..4cf2417c 100644
--- a/src/plugins/migrations.js
+++ b/src/plugins/migrations.js
@@ -3,7 +3,7 @@ import RedLock from 'redlock';
 import { Umzug } from 'umzug';
 
 /**
- * @typedef {import('../Uwave').default} Uwave
+ * @typedef {import('../Uwave.js').default} Uwave
  */
 
 /**
diff --git a/src/plugins/motd.js b/src/plugins/motd.js
index f5a0c031..cdfb90a5 100644
--- a/src/plugins/motd.js
+++ b/src/plugins/motd.js
@@ -4,7 +4,7 @@ class MOTD {
   #uw;
 
   /**
-   * @param {import('../Uwave').default} uw
+   * @param {import('../Uwave.js').default} uw
    */
   constructor(uw) {
     this.#uw = uw;
@@ -31,7 +31,7 @@ class MOTD {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 async function motdPlugin(uw) {
   uw.motd = new MOTD(uw);
diff --git a/src/plugins/passport.js b/src/plugins/passport.js
index 01cd2d1b..7da669e4 100644
--- a/src/plugins/passport.js
+++ b/src/plugins/passport.js
@@ -10,7 +10,7 @@ const schema = JSON.parse(
 );
 
 /**
- * @typedef {import('../models/User').User} User
+ * @typedef {import('../models/User.js').User} User
  *
  * @typedef {{
  *   callbackURL?: string,
@@ -32,7 +32,7 @@ class PassportPlugin extends Passport {
   #logger;
 
   /**
-   * @param {import('../Uwave').Boot} uw
+   * @param {import('../Uwave.js').Boot} uw
    * @param {{ secret: Buffer|string }} options
    */
   constructor(uw, options) {
@@ -155,7 +155,7 @@ class PassportPlugin extends Passport {
 }
 
 /**
- * @param {import('../Uwave').Boot} uw
+ * @param {import('../Uwave.js').Boot} uw
  * @param {{ secret: Buffer|string }} options
  */
 async function passportPlugin(uw, options) {
diff --git a/src/plugins/playlists.js b/src/plugins/playlists.js
index 3dd0ec82..d1a84a4e 100644
--- a/src/plugins/playlists.js
+++ b/src/plugins/playlists.js
@@ -16,11 +16,11 @@ const { groupBy, shuffle } = lodash;
  * @typedef {import('mongoose').PipelineStage} PipelineStage
  * @typedef {import('mongoose').PipelineStage.Facet['$facet'][string]} FacetPipelineStage
  * @typedef {import('mongodb').ObjectId} ObjectId
- * @typedef {import('../models').User} User
- * @typedef {import('../models').Playlist} Playlist
- * @typedef {import('../models/Playlist').LeanPlaylist} LeanPlaylist
- * @typedef {import('../models').PlaylistItem} PlaylistItem
- * @typedef {import('../models').Media} Media
+ * @typedef {import('../models/index.js').User} User
+ * @typedef {import('../models/index.js').Playlist} Playlist
+ * @typedef {import('../models/Playlist.js').LeanPlaylist} LeanPlaylist
+ * @typedef {import('../models/index.js').PlaylistItem} PlaylistItem
+ * @typedef {import('../models/index.js').Media} Media
  * @typedef {{ media: Media }} PopulateMedia
  */
 
@@ -87,7 +87,7 @@ class PlaylistsRepository {
   #logger;
 
   /**
-   * @param {import('../Uwave').default} uw
+   * @param {import('../Uwave.js').default} uw
    */
   constructor(uw) {
     this.#uw = uw;
@@ -601,7 +601,7 @@ class PlaylistsRepository {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 async function playlistsPlugin(uw) {
   uw.playlists = new PlaylistsRepository(uw);
diff --git a/src/plugins/users.js b/src/plugins/users.js
index b8c256d1..77324205 100644
--- a/src/plugins/users.js
+++ b/src/plugins/users.js
@@ -4,7 +4,8 @@ import Page from '../Page.js';
 import { IncorrectPasswordError, UserNotFoundError } from '../errors/index.js';
 
 /**
- * @typedef {import('../models').User} User
+ * @typedef {import('../models/index.js').User} User
+ * @typedef {import('../models/index.js').Authentication} Authentication
  */
 
 /**
@@ -27,7 +28,7 @@ class UsersRepository {
   #logger;
 
   /**
-   * @param {import('../Uwave').default} uw
+   * @param {import('../Uwave.js').default} uw
    */
   constructor(uw) {
     this.#uw = uw;
@@ -125,7 +126,7 @@ class UsersRepository {
   async localLogin({ email, password }) {
     const { Authentication } = this.#uw.models;
 
-    /** @type {null | (import('../models').Authentication & { user: User })} */
+    /** @type {null | (Authentication & { user: User })} */
     const auth = /** @type {any} */ (await Authentication.findOne({
       email: email.toLowerCase(),
     }).populate('user').exec());
@@ -179,7 +180,7 @@ class UsersRepository {
     // we need this type assertion because the `user` property actually contains
     // an ObjectId in this return value. We are definitely filling in a User object
     // below before using this variable.
-    /** @type {null | (Omit<import('../models').Authentication, 'user'> & { user: User })} */
+    /** @type {null | (Omit<Authentication, 'user'> & { user: User })} */
     let auth = await Authentication.findOne({ type, id });
     if (auth) {
       await auth.populate('user');
@@ -351,7 +352,7 @@ class UsersRepository {
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 async function usersPlugin(uw) {
   uw.users = new UsersRepository(uw);
diff --git a/src/plugins/waitlist.js b/src/plugins/waitlist.js
index 33fd91bb..db7a990f 100644
--- a/src/plugins/waitlist.js
+++ b/src/plugins/waitlist.js
@@ -15,7 +15,7 @@ const schema = JSON.parse(
 );
 
 /**
- * @typedef {import('../models').User} User
+ * @typedef {import('../models/index.js').User} User
  *
  * @typedef {{ cycle: boolean, locked: boolean }} WaitlistSettings
  */
@@ -81,7 +81,7 @@ class Waitlist {
   #uw;
 
   /**
-   * @param {import('../Uwave').Boot} uw
+   * @param {import('../Uwave.js').Boot} uw
    */
   constructor(uw) {
     this.#uw = uw;
@@ -361,7 +361,7 @@ class Waitlist {
 }
 
 /**
- * @param {import('../Uwave').Boot} uw
+ * @param {import('../Uwave.js').Boot} uw
  * @returns {Promise<void>}
  */
 async function waitlistPlugin(uw) {
diff --git a/src/route.js b/src/route.js
index 4edabbf6..f73c3b72 100644
--- a/src/route.js
+++ b/src/route.js
@@ -4,14 +4,14 @@
  * @template {import('type-fest').JsonObject} TBody
  * @template {any} TExtra
  * @param {(
- *   req: import('./types').Request<TParams, TQuery, TBody> & TExtra,
+ *   req: import('./types.js').Request<TParams, TQuery, TBody> & TExtra,
  *   res: import('express').Response,
  * ) => Promise<object>} handler
  * @returns {import('express').RequestHandler}
  */
 function route(handler) {
   return (rawReq, res, next) => {
-    /** @type {import('./types').Request<TParams, TQuery, TBody> & TExtra} */
+    /** @type {import('./types.js').Request<TParams, TQuery, TBody> & TExtra} */
     // @ts-expect-error TS2322
     const req = rawReq;
 
diff --git a/src/routes/authenticate.js b/src/routes/authenticate.js
index b284802c..adab604e 100644
--- a/src/routes/authenticate.js
+++ b/src/routes/authenticate.js
@@ -6,7 +6,7 @@ import schema from '../middleware/schema.js';
 import * as controller from '../controllers/authenticate.js';
 
 /**
- * @param {import('../controllers/authenticate').AuthenticateOptions} options
+ * @param {import('../controllers/authenticate.js').AuthenticateOptions} options
  * @returns {import('express').RequestHandler}
  */
 function withOptions(options) {
@@ -18,7 +18,7 @@ function withOptions(options) {
 
 /**
  * @param {import('passport').Authenticator} passport
- * @param {import('../controllers/authenticate').AuthenticateOptions} options
+ * @param {import('../controllers/authenticate.js').AuthenticateOptions} options
  */
 function authenticateRoutes(passport, options) {
   const auth = Router()
@@ -91,7 +91,7 @@ function authenticateRoutes(passport, options) {
       passport.authenticate('google'),
       withOptions(options),
       (rawReq, res, next) => {
-        /** @type {import('../types').AuthenticatedRequest & controller.WithAuthOptions} */
+        /** @type {import('../types.js').AuthenticatedRequest & controller.WithAuthOptions} */
         // Correct type is guaranteed by `passport.authenticate()` and `withOptions()` middlewares.
         const req = /** @type {any} */ (rawReq);
         controller.socialLoginCallback('google', req, res).catch(next);
diff --git a/src/sockets/AuthedConnection.js b/src/sockets/AuthedConnection.js
index 8ced1a74..9e7edcb8 100644
--- a/src/sockets/AuthedConnection.js
+++ b/src/sockets/AuthedConnection.js
@@ -7,9 +7,9 @@ class AuthedConnection extends EventEmitter {
   #logger;
 
   /**
-   * @param {import('../Uwave').default} uw
+   * @param {import('../Uwave.js').default} uw
    * @param {import('ws').WebSocket} socket
-   * @param {import('../models').User} user
+   * @param {import('../models/index.js').User} user
    */
   constructor(uw, socket, user) {
     super();
diff --git a/src/sockets/GuestConnection.js b/src/sockets/GuestConnection.js
index bd9dfbd2..122e2470 100644
--- a/src/sockets/GuestConnection.js
+++ b/src/sockets/GuestConnection.js
@@ -5,9 +5,9 @@ class GuestConnection extends EventEmitter {
   #logger;
 
   /**
-   * @param {import('../Uwave').default} uw
+   * @param {import('../Uwave.js').default} uw
    * @param {import('ws').WebSocket} socket
-   * @param {{ authRegistry: import('../AuthRegistry').default }} options
+   * @param {{ authRegistry: import('../AuthRegistry.js').default }} options
    */
   constructor(uw, socket, options) {
     super();
@@ -61,7 +61,7 @@ class GuestConnection extends EventEmitter {
   }
 
   /**
-   * @param {import('../models').User} user
+   * @param {import('../models/index.js').User} user
    */
   isReconnect(user) {
     return this.uw.redis.exists(`http-api:disconnected:${user.id}`);
diff --git a/src/sockets/LostConnection.js b/src/sockets/LostConnection.js
index 6499f68a..56832a15 100644
--- a/src/sockets/LostConnection.js
+++ b/src/sockets/LostConnection.js
@@ -4,8 +4,8 @@ class LostConnection extends EventEmitter {
   #logger;
 
   /**
-   * @param {import('../Uwave').default} uw
-   * @param {import('../models').User} user
+   * @param {import('../Uwave.js').default} uw
+   * @param {import('../models/index.js').User} user
    */
   constructor(uw, user, timeout = 30) {
     super();
diff --git a/src/utils/removeFromWaitlist.js b/src/utils/removeFromWaitlist.js
index bf20a9e7..27c5172e 100644
--- a/src/utils/removeFromWaitlist.js
+++ b/src/utils/removeFromWaitlist.js
@@ -1,12 +1,12 @@
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 function getWaitingUserIDs(uw) {
   return uw.redis.lrange('waitlist', 0, -1);
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  * @param {import('mongodb').ObjectId} userID
  */
 async function removeFromWaitlist(uw, userID) {
diff --git a/src/utils/serialize.js b/src/utils/serialize.js
index 4c273b90..2fcff093 100644
--- a/src/utils/serialize.js
+++ b/src/utils/serialize.js
@@ -1,5 +1,11 @@
 /**
- * @param {import('../models').Playlist | import('../models/Playlist').LeanPlaylist} model
+ * @typedef {import('../models/index.js').User} User
+ * @typedef {import('../models/index.js').Playlist} Playlist
+ * @typedef {import('../models/Playlist.js').LeanPlaylist} LeanPlaylist
+ */
+
+/**
+ * @param {Playlist | LeanPlaylist} model
  */
 export function serializePlaylist(model) {
   return {
@@ -13,8 +19,7 @@ export function serializePlaylist(model) {
 }
 
 /**
- * @param {Pick<import('../models').User,
- *   '_id' | 'username' | 'slug' | 'roles' | 'avatar' |
+ * @param {Pick<User, '_id' | 'username' | 'slug' | 'roles' | 'avatar' |
  *   'createdAt' | 'updatedAt' | 'lastSeenAt'>} model
  */
 export function serializeUser(model) {
diff --git a/src/utils/skipIfCurrentDJ.js b/src/utils/skipIfCurrentDJ.js
index 974f4cd8..797fba45 100644
--- a/src/utils/skipIfCurrentDJ.js
+++ b/src/utils/skipIfCurrentDJ.js
@@ -1,12 +1,12 @@
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  */
 function getCurrentDJ(uw) {
   return uw.redis.get('booth:currentDJ');
 }
 
 /**
- * @param {import('../Uwave').default} uw
+ * @param {import('../Uwave.js').default} uw
  * @param {import('mongodb').ObjectId} userID
  */
 async function skipIfCurrentDJ(uw, userID) {
diff --git a/src/utils/toPaginatedResponse.js b/src/utils/toPaginatedResponse.js
index 6ab5d863..8bc35f5c 100644
--- a/src/utils/toPaginatedResponse.js
+++ b/src/utils/toPaginatedResponse.js
@@ -18,8 +18,8 @@ function appendQuery(base, query) {
 /**
  * @template {any} TItem
  * @template {{ offset: number }} TPagination
- * @param {import('../Page').default<TItem, TPagination>} page
- * @param {{ baseUrl?: string, included?: import('./toListResponse').IncludedOptions }} options
+ * @param {import('../Page.js').default<TItem, TPagination>} page
+ * @param {{ baseUrl?: string, included?: import('./toListResponse.js').IncludedOptions }} options
  */
 function toPaginatedResponse(
   page,
diff --git a/src/utils/wrapMiddleware.js b/src/utils/wrapMiddleware.js
index add0e5ae..5903d85f 100644
--- a/src/utils/wrapMiddleware.js
+++ b/src/utils/wrapMiddleware.js
@@ -2,14 +2,14 @@
  * Wrap `async` middleware into an express style callback.
  *
  * @param {(
- *   req: import('../types').Request,
+ *   req: import('../types.js').Request,
  *   res: import('express').Response
  * ) => Promise<void>} middleware
  * @returns {import('express').RequestHandler}
  */
 function wrapMiddleware(middleware) {
   return (rawReq, res, next) => {
-    /** @type {import('../types').Request} */
+    /** @type {import('../types.js').Request} */
     const req = /** @type {any} */ (rawReq);
 
     middleware(req, res)
diff --git a/tsconfig.json b/tsconfig.json
index cae9c06f..9c1614cd 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,6 +3,7 @@
   "compilerOptions": {
     "strict": true,
     "module": "es2022",
+    "moduleResolution": "node",
     "useUnknownInCatchVariables": false,
     "allowJs": true,
     "checkJs": true,