diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 00000000000..544bcc891ba
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,23 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/typescript-node
+{
+  "name": "Node.js & TypeScript",
+  // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+  "image": "mcr.microsoft.com/devcontainers/typescript-node:1-22-bookworm",
+  "features": {
+    "ghcr.io/devcontainers/features/github-cli:1": {
+      "installDirectlyFromGitHubRelease": true,
+      "version": "latest"
+    },
+    "ghcr.io/devcontainers-extra/features/pnpm:2": {
+      "version": "latest"
+    }
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": ["aaron-bond.better-comments", ""]
+    }
+  },
+  "postCreateCommand": "pnpm install && pnpm postinstall",
+  "forwardPorts": [8000]
+}
diff --git a/.gitignore b/.gitignore
index 00df0002e01..6ae2ca47371 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,7 +13,6 @@ dist-ssr
 *.local
 
 # Editor directories and files
-.vscode
 *.code-workspace
 .idea
 .DS_Store
diff --git a/.ls-lint.yml b/.ls-lint.yml
index 22f08f72938..0086367367b 100644
--- a/.ls-lint.yml
+++ b/.ls-lint.yml
@@ -26,3 +26,4 @@ ignore:
    - .git
    - public
    - dist
+   - .devcontainer
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 00000000000..4ce39f3c27c
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,11 @@
+{
+  "recommendations": [
+    "biomejs.biome",
+    "YoavBls.pretty-ts-errors",
+    "vitest.explorer",
+
+    // This stuff isn't mandatory - it's just nice to have ;)
+    "adpyke.codesnap",
+    "aaron-bond.better-comments"
+  ]
+}
\ No newline at end of file
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 00000000000..e53e4256bb9
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,31 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Debug Vitest",
+      "skipFiles": ["<node_internals>/**"],
+      "program": "${workspaceFolder}/node_modules/vitest/vitest.mjs",
+      "args": ["--inspectBrk", "--no-file-parallelism", "${input:testfile}", "-t", "${input:testcase}"],
+      "autoAttachChildProcesses": true
+    }
+  ],
+  "inputs": [
+    {
+      "id": "testfile",
+      "type": "promptString",
+      "description": "Enter test file to run.",
+      "default": "${fileBasename}"
+    },
+    {
+      "id": "testcase",
+      "type": "promptString",
+      "description": "Enter test case to run.",
+      "default": ""
+    }
+  ]
+}
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 00000000000..733bbb932f7
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,34 @@
+{
+  // # Formatter configs
+  "editor.defaultFormatter": "biomejs.biome",
+  "editor.tabSize": 2,
+  "editor.insertSpaces": true,
+  "editor.codeActionsOnSave": {
+    "source.addMissingImports.ts": "always",
+    "source.removeUnusedImports": "always",
+    "source.fixAll.biome": "always",
+    "source.organizeImports.biome": "always"
+  },
+  "biome.suggestInstallingGlobally": false,
+
+  // # JS/TS setting overrides
+  "javascript.preferences.importModuleSpecifier": "non-relative",
+  "javascript.preferences.importModuleSpecifierEnding": "index",
+  "javascript.preferGoToSourceDefinition": true,
+  "javascript.updateImportsOnFileMove.enabled": "always",
+
+  "typescript.preferences.importModuleSpecifier": "non-relative",
+  "typescript.preferences.importModuleSpecifierEnding": "index",
+  "typescript.preferGoToSourceDefinition": true,
+  "typescript.updateImportsOnFileMove.enabled": "always",
+
+  "typescript.tsserver.experimental.enableProjectDiagnostics": true,
+  // Note: You may want to adjust the max server memory depending on your PC's specs:
+  // "typescript.tsserver.maxTsServerMemory": 1536, // 1.5 GB by default
+  "typescript.autoClosingTags": false,
+
+  // # Miscellaneous
+  "npm.packageManager": "pnpm",
+  "npm.scriptRunner": "pnpm",
+  "vitest.cliArguments": "--no-isolate",
+}
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
new file mode 100644
index 00000000000..ef3d03bb034
--- /dev/null
+++ b/.vscode/tasks.json
@@ -0,0 +1,70 @@
+{
+  // See https://go.microsoft.com/fwlink/?LinkId=733558
+  // for the documentation about the tasks.json format
+  "version": "2.0.0",
+  "presentation": {
+    "reveal": "never",
+    "focus": false
+  },
+  "tasks": [
+    {
+      "label": "Update Submodules",
+      "type": "shell",
+      "command": "git submodule update --init --recursive",
+      "icon": {
+        "color": "terminal.ansiRed",
+        "id": "git-branch"
+      },
+    },
+    {
+      "label": "Clear Submodules",
+      "type": "shell",
+      "command": "rm -rf public/locales; git checkout upstream/beta -- public/locales",
+      "icon": {
+        "color": "terminal.ansiRed",
+        "id": "trash"
+      },
+    },
+    {
+      "label": "Biome - Write All",
+      "type": "shell",
+      "command": {
+        "value": "pnpm",
+        "quoting": "weak"
+      },
+      "args": [
+        "run",
+        "biome",
+        "--diagnostic-level=${input:error-level}"
+      ],
+      "icon": {
+        "color": "terminal.ansiBlue",
+        "id": "json"
+      },
+      "problemMatcher": []
+    },
+    {
+      "label": "Start Local Dev",
+      "type": "npm",
+      "script": "start:dev",
+      "icon": {
+        "color": "terminal.ansiGreen",
+        "id": "debug-start"
+      },
+      "problemMatcher": []
+    }
+  ],
+  "inputs": [
+    {
+      "id": "error-level",
+      "description": "Select the level of errors to report from Biome.",
+      "type": "pickString",
+      "options": [
+        "error",
+        "warning",
+        "info"
+      ],
+      "default": "error"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/biome.jsonc b/biome.jsonc
index d2f7c711dc9..a63ce0ee07d 100644
--- a/biome.jsonc
+++ b/biome.jsonc
@@ -36,7 +36,6 @@
       "!**/src/data/balance/tms.ts"
     ]
   },
-
   "assist": {
     "actions": {
       "source": {