diff --git a/diagnostic/comit-self note.txt b/diagnostic/comit-self note.txt
new file mode 100644
index 0000000..6198f6e
--- /dev/null
+++ b/diagnostic/comit-self note.txt	
@@ -0,0 +1 @@
+Only classes
\ No newline at end of file
diff --git a/src/classes/Post.ts b/src/classes/Post.ts
index dc145d9..54ffd19 100644
--- a/src/classes/Post.ts
+++ b/src/classes/Post.ts
@@ -11,7 +11,7 @@ export default class Post {
   declare root: HTMLElement
   declare thread: Thread
   declare board: Board
-  declare ID: number
+  declare ID: number | string
   declare postID: number
   declare threadID: number
   declare boardID: number | string
@@ -22,7 +22,7 @@ export default class Post {
   declare nodes: ReturnType<Post['parseNodes']>
   declare isDead: boolean
   declare isHidden: boolean
-  declare clones: any[]
+  declare clones: unknown[]
   declare isRebuilt?: boolean
   declare isFetchedQuote: boolean
   declare isClone: boolean
@@ -31,17 +31,17 @@ export default class Post {
   declare files: ReturnType<Post['parseFile']>[]
 
   declare info: {
-    subject: string | undefined,
-    name: string | undefined,
-    email: string | undefined,
-    tripcode: string | undefined,
-    uniqueID: string | undefined,
-    capcode: string | undefined,
-    pass: string | undefined,
-    flagCode: string | undefined,
-    flagCodeTroll: string | undefined,
-    flag: string | undefined,
-    date: Date | undefined,
+    subject: string,
+    name: string,
+    email: string,
+    tripcode: string,
+    uniqueID: string,
+    capcode: string,
+    pass: string,
+    flagCode: string,
+    flagCodeTroll: string,
+    flag: string,
+    date: Date,
     nameBlock: string,
   }
 
@@ -85,7 +85,7 @@ export default class Post {
     if (!this.isReply) {
       this.thread.OP = this
       for (const key of ['isSticky', 'isClosed', 'isArchived']) {
-        var selector
+        var selector: any
         if (selector = g.SITE.selectors.icons[key]) {
           this.thread[key] = !!$(selector, this.nodes.info)
         }
@@ -135,8 +135,8 @@ export default class Post {
     }
 
     if (!this.isFetchedQuote && (this.ID > this.thread.lastPost)) { this.thread.lastPost = this.ID }
-    this.board.posts.push(this.ID, this)
-    this.thread.posts.push(this.ID, this)
+    this.board.posts.push(this.ID.toString(), this)
+    this.thread.posts.push(this.ID.toString(), this)
     g.posts.push(this.fullID, this)
 
     this.isFetchedQuote = false
@@ -187,7 +187,7 @@ export default class Post {
 
   parseComment() {
     // Merge text nodes and remove empty ones.
-    let bq
+    let bq: Node
     this.nodes.comment.normalize()
 
     // Get the comment's text.
@@ -221,8 +221,8 @@ export default class Post {
     return this.nodesToText(bq)
   }
 
-  nodesToText(bq) {
-    let node
+  nodesToText(bq: any) {
+    let node: Node
     let text = ""
     const nodes = $.X('.//br|.//text()', bq)
     let i = 0
@@ -232,7 +232,7 @@ export default class Post {
     return text
   }
 
-  cleanSpoilers(bq) {
+  cleanSpoilers(bq: HTMLElement) {
     const spoilers = $$(g.SITE.selectors.spoiler, bq)
     for (const node of spoilers) {
       $.replace(node, $.tn('[spoiler]'))
@@ -246,7 +246,7 @@ export default class Post {
     }
   }
 
-  parseQuote(quotelink) {
+  parseQuote(quotelink: HTMLAnchorElement) {
     // Only add quotes that link to posts on an imageboard.
     // Don't add:
     //  - board links. (>>>/b/)
@@ -326,8 +326,8 @@ export default class Post {
     return file as File
   }
 
-  kill(file, index = 0) {
-    let strong
+  kill(file: any, index = 0) {
+    let strong: { textContent: string }
     if (file) {
       if (this.isDead || this.files[index].isDead) { return }
       this.files[index].isDead = true
@@ -395,20 +395,20 @@ export default class Post {
     this.board.posts.rm(this)
   }
 
-  addClone(context, contractThumb) {
+  addClone(context: any, contractThumb: any) {
     // Callbacks may not have been run yet due to anti-browser-lock delay in Main.callbackNodesDB.
     Callbacks.Post.execute(this)
     return new PostClone(this, context, contractThumb)
   }
 
-  rmClone(index) {
+  rmClone(index: number) {
     this.clones.splice(index, 1)
     for (const clone of this.clones.slice(index)) {
       clone.nodes.root.dataset.clone = index++
     }
   }
 
-  setCatalogOP(isCatalogOP) {
+  setCatalogOP(isCatalogOP: boolean) {
     this.nodes.root.classList.toggle('catalog-container', isCatalogOP)
     this.nodes.root.classList.toggle('opContainer', !isCatalogOP)
     this.nodes.post.classList.toggle('catalog-post', isCatalogOP)
@@ -422,11 +422,11 @@ export class PostClone extends Post {
 
   static suffix = 0
 
-  constructor(origin, context, contractThumb) {
+  constructor(origin: Post, context: Post, contractThumb: any) {
     super()
     this.isClone = true
 
-    let file, fileRoots, key
+    let file, fileRoots: any[], key: string | number
     this.origin = origin
     this.context = context
     for (key of ['ID', 'postID', 'threadID', 'boardID', 'siteID', 'fullID', 'board', 'thread', 'info', 'quotes', 'isReply']) {
@@ -458,9 +458,9 @@ export class PostClone extends Post {
     // Remove catalog stuff.
     if (!this.isReply) {
       this.setCatalogOP(false)
-      $.rm($('.catalog-link', this.nodes.post))
-      $.rm($('.catalog-stats', this.nodes.post))
-      $.rm($('.catalog-replies', this.nodes.post))
+      $.rm($('.catalog-link')),
+        $.rm($('.catalog-stats')),
+        $.rm($('.catalog-subject'))
     }
 
     this.parseQuotes()
@@ -495,7 +495,7 @@ export class PostClone extends Post {
     return this
   }
 
-  cloneWithoutVideo(node) {
+  cloneWithoutVideo(node: HTMLElement) {
     if ((node.tagName === 'VIDEO') && !node.dataset.md5) { // (exception for WebM thumbnails)
       return []
     } else if ((node.nodeType === Node.ELEMENT_NODE) && $('video', node)) {
diff --git a/src/platform/$$.ts b/src/platform/$$.ts
index b611696..c79581e 100644
--- a/src/platform/$$.ts
+++ b/src/platform/$$.ts
@@ -1,10 +1,4 @@
 import { d } from "../globals/globals"
 
-/*
- * decaffeinate suggestions:
- * DS101: Remove unnecessary use of Array.from
- * DS102: Remove unnecessary code created because of implicit returns
- * Full docs: https://github.com/decaffeinate/decaffeinate/blob/main/docs/suggestions.md
- */
 const $$ = (selector, root = d.body) => [...Array.from(root.querySelectorAll(selector))]
 export default $$
diff --git a/src/platform/$.ts b/src/platform/$.ts
index cf232a2..5e848f2 100644
--- a/src/platform/$.ts
+++ b/src/platform/$.ts
@@ -8,6 +8,7 @@
 // loosely follows the jquery api:
 // http://api.jquery.com/
 
+import Callbacks from "../classes/Callbacks"
 import Notice from "../classes/Notice"
 import { c, Conf, d, doc, g } from "../globals/globals"
 import CrossOrigin from "./CrossOrigin"
@@ -17,7 +18,16 @@ import { debounce, dict, MINUTE, platform, SECOND } from "./helpers"
 const $ = (selector, root = document.body) => root.querySelector(selector)
 
 $.id = id => d.getElementById(id)
-
+$.cache = (function () {
+  const cache = {}
+  return function (key, value) {
+    if (value != null) {
+      return (cache[key] = value)
+    } else {
+      return cache[key]
+    }
+  }
+})()
 $.ajaxPage = function (url, options) {
   if (options.responseType == null) { options.responseType = 'json' }
   if (!options.type) { options.type = (options.form && 'post') || 'get' }
@@ -88,7 +98,7 @@ $.ajax = (function () {
     pageXHR = XMLHttpRequest
   }
 
-  const r = (function (url, options = {}) {
+  const r = (function (url: string, options) {
     if (options.responseType == null) { options.responseType = 'json' }
     if (!options.type) { options.type = (options.form && 'post') || 'get' }
     // XXX https://forums.lanik.us/viewtopic.php?f=64&t=24173&p=78310
@@ -321,7 +331,7 @@ $.onExists = function (root, selector, cb) {
   if (el = $(selector, root)) {
     return cb(el)
   }
-  var observer = new MutationObserver(function () {
+  const observer = new MutationObserver(function () {
     if (el = $(selector, root)) {
       observer.disconnect()
       return cb(el)
@@ -508,31 +518,15 @@ $.debounce = function (wait, fn) {
   }
 }
 
-$.queueTask = (function () {
-  // inspired by https://www.w3.org/Bugs/Public/show_bug.cgi?id=15007
-  const taskQueue = []
-  const execTask = function () {
-    const task = taskQueue.shift()
-    const func = task[0]
-    const args = Array.prototype.slice.call(task, 1)
-    return func.apply(func, args)
+$.queueTask = function (fn) {
+  if (typeof requestIdleCallback === 'function') {
+    return requestIdleCallback(fn)
+  } else {
+    return setTimeout(fn, 0)
   }
-  if (window.MessageChannel) {
-    const taskChannel = new MessageChannel()
-    taskChannel.port1.onmessage = execTask
-    return function () {
-      taskQueue.push(arguments)
-      return taskChannel.port2.postMessage(null)
-    }
-  } else { // XXX Firefox
-    return function () {
-      taskQueue.push(arguments)
-      return setTimeout(execTask, 0)
-    }
-  }
-})()
+}
 
-$.global = function (fn, data) {
+$.global = function (fn, data?) {
   if (doc) {
     const script = $.el('script',
       { textContent: `(${fn}).call(document.currentScript.dataset);` })
@@ -645,8 +639,13 @@ if (platform === 'crx') {
     }
   })
   $.sync = (key, cb) => $.syncing[key] = cb
-  $.forceSync = function () { }
-
+  $.forceSync = function (key, cb) {
+    chrome.storage.sync.get(key, function (data) {
+      if (data[key] != null) {
+        cb(data[key], key)
+      }
+    })
+  }
   $.crxWorking = function () {
     try {
       if (chrome.runtime.getManifest()) {
@@ -998,15 +997,15 @@ if (platform === 'crx') {
       })
     })
 
-    $.clear = function (cb) {
+    $.clear = function (cb: Callbacks) {
       // XXX https://github.com/greasemonkey/greasemonkey/issues/2033
       // Also support case where GM_listValues is not defined.
-      $.delete(Object.keys(Conf))
-      $.delete(['previousversion', 'QR Size', 'QR.persona'])
+      $.delete(Object.keys(Conf), cb)
+      $.delete(['previousversion', 'QR Size', 'QR.persona'], cb)
       try {
-        $.delete($.listValues().map(key => key.replace(g.NAMESPACE, '')))
+        $.delete($.listValues().map(key => key.replace(g.NAMESPACE, '')), cb)
       } catch (error) { }
-      return cb?.()
+      return cb
     }
   }
 }