diff --git a/tgui/package.json b/tgui/package.json
index 7df2978a7f4..1953e25ccd2 100644
--- a/tgui/package.json
+++ b/tgui/package.json
@@ -29,7 +29,7 @@
     "@babel/preset-typescript": "^7.23.3",
     "@types/jest": "^29.5.10",
     "@types/jsdom": "^21.1.6",
-    "@types/node": "14.x",
+    "@types/node": "^14.x",
     "@types/webpack": "^5.28.5",
     "@types/webpack-env": "^1.18.4",
     "@typescript-eslint/parser": "^5.62.0",
diff --git a/tgui/packages/tgui-panel/Notifications.jsx b/tgui/packages/tgui-panel/Notifications.tsx
similarity index 100%
rename from tgui/packages/tgui-panel/Notifications.jsx
rename to tgui/packages/tgui-panel/Notifications.tsx
diff --git a/tgui/packages/tgui-panel/Panel.jsx b/tgui/packages/tgui-panel/Panel.tsx
similarity index 81%
rename from tgui/packages/tgui-panel/Panel.jsx
rename to tgui/packages/tgui-panel/Panel.tsx
index 668fd8cbb19..04182f5eb6e 100644
--- a/tgui/packages/tgui-panel/Panel.jsx
+++ b/tgui/packages/tgui-panel/Panel.tsx
@@ -15,10 +15,6 @@ import { ReconnectButton } from './reconnect';
 import { SettingsPanel, useSettings } from './settings';
 
 export const Panel = (props) => {
-  // IE8-10: Needs special treatment due to missing Flex support
-  if (Byond.IS_LTE_IE10) {
-    return <HoboPanel />;
-  }
   const audio = useAudio();
   const settings = useSettings();
   const game = useGame();
@@ -29,6 +25,7 @@ export const Panel = (props) => {
       return <KitchenSink panel />;
     }
   }
+
   return (
     <Pane theme={settings.theme}>
       <Stack fill vertical>
@@ -102,28 +99,3 @@ export const Panel = (props) => {
     </Pane>
   );
 };
-
-const HoboPanel = (props) => {
-  const settings = useSettings();
-  return (
-    <Pane theme={settings.theme}>
-      <Pane.Content scrollable>
-        <Button
-          style={{
-            position: 'fixed',
-            top: '1em',
-            right: '2em',
-            zIndex: 1000,
-          }}
-          selected={settings.visible}
-          onClick={() => settings.toggle()}
-        >
-          Settings
-        </Button>
-        {(settings.visible && <SettingsPanel />) || (
-          <ChatPanel lineHeight={settings.lineHeight} />
-        )}
-      </Pane.Content>
-    </Pane>
-  );
-};
diff --git a/tgui/packages/tgui-panel/audio/hooks.js b/tgui/packages/tgui-panel/audio/hooks.ts
similarity index 100%
rename from tgui/packages/tgui-panel/audio/hooks.js
rename to tgui/packages/tgui-panel/audio/hooks.ts
diff --git a/tgui/packages/tgui-panel/audio/player.js b/tgui/packages/tgui-panel/audio/player.js
index f9dfa41cef9..50eccee16ba 100644
--- a/tgui/packages/tgui-panel/audio/player.js
+++ b/tgui/packages/tgui-panel/audio/player.js
@@ -10,10 +10,6 @@ const logger = createLogger('AudioPlayer');
 
 export class AudioPlayer {
   constructor() {
-    // Doesn't support HTMLAudioElement
-    if (Byond.IS_LTE_IE9) {
-      return;
-    }
     // Set up the HTMLAudioElement node
     this.node = document.createElement('audio');
     this.node.style.setProperty('display', 'none');
diff --git a/tgui/packages/tgui-panel/audio/reducer.js b/tgui/packages/tgui-panel/audio/reducer.ts
similarity index 100%
rename from tgui/packages/tgui-panel/audio/reducer.js
rename to tgui/packages/tgui-panel/audio/reducer.ts
diff --git a/tgui/packages/tgui-panel/audio/selectors.js b/tgui/packages/tgui-panel/audio/selectors.ts
similarity index 100%
rename from tgui/packages/tgui-panel/audio/selectors.js
rename to tgui/packages/tgui-panel/audio/selectors.ts
diff --git a/tgui/packages/tgui-panel/chat/renderer.jsx b/tgui/packages/tgui-panel/chat/renderer.jsx
index d0c170c9354..e52007c5f72 100644
--- a/tgui/packages/tgui-panel/chat/renderer.jsx
+++ b/tgui/packages/tgui-panel/chat/renderer.jsx
@@ -317,15 +317,14 @@ class ChatRenderer {
     const to = Math.max(0, len - COMBINE_MAX_MESSAGES);
     for (let i = from; i >= to; i--) {
       const message = this.visibleMessages[i];
-      // prettier-ignore
-      const matches = (
+
+      const matches =
         // Is not an internal message
-        !message.type.startsWith(MESSAGE_TYPE_INTERNAL)
+        !message.type.startsWith(MESSAGE_TYPE_INTERNAL) &&
         // Text payload must fully match
-        && isSameMessage(message, predicate)
+        isSameMessage(message, predicate) &&
         // Must land within the specified time window
-        && now < message.createdAt + COMBINE_MAX_TIME_WINDOW
-      );
+        now < message.createdAt + COMBINE_MAX_TIME_WINDOW;
       if (matches) {
         return message;
       }
@@ -457,11 +456,13 @@ class ChatRenderer {
       if (!message.type) {
         // IE8: Does not support querySelector on elements that
         // are not yet in the document.
-        // prettier-ignore
-        const typeDef = !Byond.IS_LTE_IE8 && MESSAGE_TYPES
-          .find(typeDef => (
-            typeDef.selector && node.querySelector(typeDef.selector)
-          ));
+
+        const typeDef =
+          !Byond.IS_LTE_IE8 &&
+          MESSAGE_TYPES.find(
+            (typeDef) =>
+              typeDef.selector && node.querySelector(typeDef.selector),
+          );
         message.type = typeDef?.type || MESSAGE_TYPE_UNKNOWN;
       }
       updateMessageBadge(message);
@@ -516,10 +517,10 @@ class ChatRenderer {
           message.node = 'pruned';
         }
         // Remove pruned messages from the message array
-        // prettier-ignore
-        this.messages = this.messages.filter(message => (
-          message.node !== 'pruned'
-        ));
+
+        this.messages = this.messages.filter(
+          (message) => message.node !== 'pruned',
+        );
         logger.log(`pruned ${fromIndex} visible messages`);
       }
     }
@@ -586,19 +587,22 @@ class ChatRenderer {
       }
     }
     // Create a page
-    // prettier-ignore
-    const pageHtml = '<!doctype html>\n'
-      + '<html>\n'
-      + '<head>\n'
-      + '<title>SS13 Chat Log</title>\n'
-      + '<style>\n' + cssText + '</style>\n'
-      + '</head>\n'
-      + '<body>\n'
-      + '<div class="Chat">\n'
-      + messagesHtml
-      + '</div>\n'
-      + '</body>\n'
-      + '</html>\n';
+
+    const pageHtml =
+      '<!doctype html>\n' +
+      '<html>\n' +
+      '<head>\n' +
+      '<title>SS13 Chat Log</title>\n' +
+      '<style>\n' +
+      cssText +
+      '</style>\n' +
+      '</head>\n' +
+      '<body>\n' +
+      '<div class="Chat">\n' +
+      messagesHtml +
+      '</div>\n' +
+      '</body>\n' +
+      '</html>\n';
     // Create and send a nice blob
     const blob = new Blob([pageHtml]);
     const timestamp = new Date()
diff --git a/tgui/packages/tgui-panel/chat/replaceInTextNode.js b/tgui/packages/tgui-panel/chat/replaceInTextNode.js
index 5062b88831b..4c91b604dac 100644
--- a/tgui/packages/tgui-panel/chat/replaceInTextNode.js
+++ b/tgui/packages/tgui-panel/chat/replaceInTextNode.js
@@ -171,8 +171,8 @@ export const highlightNode = (
 // Linkify
 // --------------------------------------------------------
 
-// prettier-ignore
-const URL_REGEX = /(?:(?:https?:\/\/)|(?:www\.))(?:[^ ]*?\.[^ ]*?)+[-A-Za-z0-9+&@#/%?=~_|$!:,.;(){}]+/ig;
+const URL_REGEX =
+  /(?:(?:https?:\/\/)|(?:www\.))(?:[^ ]*?\.[^ ]*?)+[-A-Za-z0-9+&@#/%?=~_|$!:,.;(){}]+/gi;
 
 /**
  * Highlights the text in the node based on the provided regular expression.
diff --git a/tgui/packages/tgui-panel/chat/selectors.js b/tgui/packages/tgui-panel/chat/selectors.ts
similarity index 85%
rename from tgui/packages/tgui-panel/chat/selectors.js
rename to tgui/packages/tgui-panel/chat/selectors.ts
index 6352b7cddf0..2908f661264 100644
--- a/tgui/packages/tgui-panel/chat/selectors.js
+++ b/tgui/packages/tgui-panel/chat/selectors.ts
@@ -9,7 +9,7 @@ import { map } from 'common/collections';
 export const selectChat = (state) => state.chat;
 
 export const selectChatPages = (state) =>
-  map((id) => state.chat.pageById[id])(state.chat.pages);
+  map((id: string) => state.chat.pageById[id])(state.chat.pages);
 
 export const selectCurrentChatPage = (state) =>
   state.chat.pageById[state.chat.currentPageId];
diff --git a/tgui/packages/tgui-panel/game/actions.js b/tgui/packages/tgui-panel/game/actions.ts
similarity index 100%
rename from tgui/packages/tgui-panel/game/actions.js
rename to tgui/packages/tgui-panel/game/actions.ts
diff --git a/tgui/packages/tgui-panel/game/hooks.js b/tgui/packages/tgui-panel/game/hooks.ts
similarity index 100%
rename from tgui/packages/tgui-panel/game/hooks.js
rename to tgui/packages/tgui-panel/game/hooks.ts
diff --git a/tgui/packages/tgui-panel/game/reducer.js b/tgui/packages/tgui-panel/game/reducer.ts
similarity index 94%
rename from tgui/packages/tgui-panel/game/reducer.js
rename to tgui/packages/tgui-panel/game/reducer.ts
index 97535524c56..c446db8f029 100644
--- a/tgui/packages/tgui-panel/game/reducer.js
+++ b/tgui/packages/tgui-panel/game/reducer.ts
@@ -16,7 +16,7 @@ const initialState = {
 };
 
 export const gameReducer = (state = initialState, action) => {
-  const { type, payload, meta } = action;
+  const { type, meta } = action;
   if (type === 'roundrestart') {
     return {
       ...state,
diff --git a/tgui/packages/tgui-panel/game/selectors.js b/tgui/packages/tgui-panel/game/selectors.ts
similarity index 100%
rename from tgui/packages/tgui-panel/game/selectors.js
rename to tgui/packages/tgui-panel/game/selectors.ts
diff --git a/tgui/packages/tgui-panel/index.jsx b/tgui/packages/tgui-panel/index.tsx
similarity index 88%
rename from tgui/packages/tgui-panel/index.jsx
rename to tgui/packages/tgui-panel/index.tsx
index 8ef4b8bae59..32bb8fe6cce 100644
--- a/tgui/packages/tgui-panel/index.jsx
+++ b/tgui/packages/tgui-panel/index.tsx
@@ -85,7 +85,7 @@ const setupApp = () => {
   });
 
   // Resize the panel to match the non-browser output
-  Byond.winget('output').then((output) => {
+  Byond.winget('output').then((output: { size: string }) => {
     Byond.winset('browseroutput', {
       size: output.size,
     });
@@ -94,19 +94,22 @@ const setupApp = () => {
   // Enable hot module reloading
   if (module.hot) {
     setupHotReloading();
-    // prettier-ignore
-    module.hot.accept([
-      './audio',
-      './chat',
-      './game',
-      './Notifications',
-      './Panel',
-      './ping',
-      './settings',
-      './telemetry',
-    ], () => {
-      renderApp();
-    });
+
+    module.hot.accept(
+      [
+        './audio',
+        './chat',
+        './game',
+        './Notifications',
+        './Panel',
+        './ping',
+        './settings',
+        './telemetry',
+      ],
+      () => {
+        renderApp();
+      },
+    );
   }
 };
 
diff --git a/tgui/packages/tgui-panel/package.json b/tgui/packages/tgui-panel/package.json
index b1c4bb1786c..f020764a31b 100644
--- a/tgui/packages/tgui-panel/package.json
+++ b/tgui/packages/tgui-panel/package.json
@@ -1,9 +1,10 @@
 {
   "private": true,
   "name": "tgui-panel",
-  "version": "4.3.2",
+  "version": "5.0.0",
   "dependencies": {
-    "@types/react": "^18.2.39",
+    "@types/node": "^14.x",
+    "@types/react": "^18.2.42",
     "common": "workspace:*",
     "dompurify": "^2.4.4",
     "react": "^18.2.0",
diff --git a/tgui/packages/tgui-panel/ping/actions.js b/tgui/packages/tgui-panel/ping/actions.ts
similarity index 100%
rename from tgui/packages/tgui-panel/ping/actions.js
rename to tgui/packages/tgui-panel/ping/actions.ts
diff --git a/tgui/packages/tgui-panel/ping/reducer.js b/tgui/packages/tgui-panel/ping/reducer.ts
similarity index 82%
rename from tgui/packages/tgui-panel/ping/reducer.js
rename to tgui/packages/tgui-panel/ping/reducer.ts
index 49b9522c06f..55d40eeb46f 100644
--- a/tgui/packages/tgui-panel/ping/reducer.js
+++ b/tgui/packages/tgui-panel/ping/reducer.ts
@@ -12,7 +12,14 @@ import {
   PING_ROUNDTRIP_WORST,
 } from './constants';
 
-export const pingReducer = (state = {}, action) => {
+type PingState = {
+  roundtrip: number | undefined;
+  roundtripAvg: number | undefined;
+  failCount: number;
+  networkQuality: number;
+};
+
+export const pingReducer = (state = {} as PingState, action) => {
   const { type, payload } = action;
 
   if (type === pingSuccess.type) {
@@ -34,7 +41,7 @@ export const pingReducer = (state = {}, action) => {
     const networkQuality = clamp01(
       state.networkQuality - failCount / PING_MAX_FAILS,
     );
-    const nextState = {
+    const nextState: PingState = {
       ...state,
       failCount: failCount + 1,
       networkQuality,
diff --git a/tgui/packages/tgui-panel/ping/selectors.js b/tgui/packages/tgui-panel/ping/selectors.ts
similarity index 100%
rename from tgui/packages/tgui-panel/ping/selectors.js
rename to tgui/packages/tgui-panel/ping/selectors.ts
diff --git a/tgui/packages/tgui-panel/settings/actions.js b/tgui/packages/tgui-panel/settings/actions.ts
similarity index 100%
rename from tgui/packages/tgui-panel/settings/actions.js
rename to tgui/packages/tgui-panel/settings/actions.ts
diff --git a/tgui/packages/tgui-panel/settings/hooks.js b/tgui/packages/tgui-panel/settings/hooks.ts
similarity index 100%
rename from tgui/packages/tgui-panel/settings/hooks.js
rename to tgui/packages/tgui-panel/settings/hooks.ts
diff --git a/tgui/packages/tgui-panel/settings/model.js b/tgui/packages/tgui-panel/settings/model.ts
similarity index 65%
rename from tgui/packages/tgui-panel/settings/model.js
rename to tgui/packages/tgui-panel/settings/model.ts
index b98d0d4fb6f..e689a676cf5 100644
--- a/tgui/packages/tgui-panel/settings/model.js
+++ b/tgui/packages/tgui-panel/settings/model.ts
@@ -3,7 +3,7 @@
  */
 import { createUuid } from 'common/uuid';
 
-export const createHighlightSetting = (obj) => ({
+export const createHighlightSetting = (obj?: Record<string, any>) => ({
   id: createUuid(),
   highlightText: '',
   highlightColor: '#ffdd44',
@@ -13,7 +13,7 @@ export const createHighlightSetting = (obj) => ({
   ...obj,
 });
 
-export const createDefaultHighlightSetting = (obj) =>
+export const createDefaultHighlightSetting = (obj?: Record<string, any>) =>
   createHighlightSetting({
     id: 'default',
     ...obj,
diff --git a/tgui/packages/tgui-panel/settings/selectors.js b/tgui/packages/tgui-panel/settings/selectors.ts
similarity index 100%
rename from tgui/packages/tgui-panel/settings/selectors.js
rename to tgui/packages/tgui-panel/settings/selectors.ts
diff --git a/tgui/packages/tgui-panel/telemetry.js b/tgui/packages/tgui-panel/telemetry.js
index d1f7346af60..3b1eb9a9500 100644
--- a/tgui/packages/tgui-panel/telemetry.js
+++ b/tgui/packages/tgui-panel/telemetry.js
@@ -11,12 +11,10 @@ const logger = createLogger('telemetry');
 
 const MAX_CONNECTIONS_STORED = 10;
 
-// prettier-ignore
-const connectionsMatch = (a, b) => (
-  a.ckey === b.ckey
-    && a.address === b.address
-    && a.computer_id === b.computer_id
-);
+const connectionsMatch = (a, b) =>
+  a.ckey === b.ckey &&
+  a.address === b.address &&
+  a.computer_id === b.computer_id;
 
 export const telemetryMiddleware = (store) => {
   let telemetry;
@@ -58,9 +56,10 @@ export const telemetryMiddleware = (store) => {
         }
         // Append a connection record
         let telemetryMutated = false;
-        // prettier-ignore
-        const duplicateConnection = telemetry.connections
-          .find(conn => connectionsMatch(conn, client));
+
+        const duplicateConnection = telemetry.connections.find((conn) =>
+          connectionsMatch(conn, client),
+        );
         if (!duplicateConnection) {
           telemetryMutated = true;
           telemetry.connections.unshift(client);
diff --git a/tgui/packages/tgui-panel/themes.js b/tgui/packages/tgui-panel/themes.ts
similarity index 99%
rename from tgui/packages/tgui-panel/themes.js
rename to tgui/packages/tgui-panel/themes.ts
index 63fb2774849..d8f0ce50b79 100644
--- a/tgui/packages/tgui-panel/themes.js
+++ b/tgui/packages/tgui-panel/themes.ts
@@ -10,7 +10,7 @@ const COLOR_DARK_BG = '#202020';
 const COLOR_DARK_BG_DARKER = '#171717';
 const COLOR_DARK_TEXT = '#a4bad6';
 
-let setClientThemeTimer = null;
+let setClientThemeTimer: NodeJS.Timeout;
 
 /**
  * Darkmode preference, originally by Kmc2000.
diff --git a/tgui/yarn.lock b/tgui/yarn.lock
index c6d2faf08c2..9d790343db5 100644
--- a/tgui/yarn.lock
+++ b/tgui/yarn.lock
@@ -2487,10 +2487,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/node@npm:14.x":
-  version: 14.18.36
-  resolution: "@types/node@npm:14.18.36"
-  checksum: da7f479b3fc996d585e60b8329987c6e310ddbf051e14f2d900ce04f7768f42fa7b760f0eb376008d3eca130ce9431018fb5c9e44027dcb7bb139c547e44b9c5
+"@types/node@npm:^14.x":
+  version: 14.18.63
+  resolution: "@types/node@npm:14.18.63"
+  checksum: be909061a54931778c71c49dc562586c32f909c4b6197e3d71e6dac726d8bd9fccb9f599c0df99f52742b68153712b5097c0f00cac4e279fa894b0ea6719a8fd
   languageName: node
   linkType: hard
 
@@ -2521,6 +2521,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/react@npm:^18.2.42":
+  version: 18.2.42
+  resolution: "@types/react@npm:18.2.42"
+  dependencies:
+    "@types/prop-types": "*"
+    "@types/scheduler": "*"
+    csstype: ^3.0.2
+  checksum: d2019afdf48303a3a598a97cc9dd2284e3c04b369e791f6ba3c33232b7f8645daff97b093a19f8b3ce75ac8a261b47552cb4513226ab16d843eb9443b0f91844
+  languageName: node
+  linkType: hard
+
 "@types/scheduler@npm:*":
   version: 0.16.8
   resolution: "@types/scheduler@npm:0.16.8"
@@ -10131,7 +10142,8 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "tgui-panel@workspace:packages/tgui-panel"
   dependencies:
-    "@types/react": ^18.2.39
+    "@types/node": ^14.x
+    "@types/react": ^18.2.42
     common: "workspace:*"
     dompurify: ^2.4.4
     react: ^18.2.0
@@ -10178,7 +10190,7 @@ __metadata:
     "@babel/preset-typescript": ^7.23.3
     "@types/jest": ^29.5.10
     "@types/jsdom": ^21.1.6
-    "@types/node": 14.x
+    "@types/node": ^14.x
     "@types/webpack": ^5.28.5
     "@types/webpack-env": ^1.18.4
     "@typescript-eslint/parser": ^5.62.0