diff --git a/.gitignore b/.gitignore
index 851e426..0f08154 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,7 @@ dist/
 .python-version
 .direnv
 .hermes/
+
+# TypeScript: compiled output and codegen are build-only
+/games/static/js/dist/
+/ts/generated/
diff --git a/Makefile b/Makefile
index fc20c4f..5c61872 100644
--- a/Makefile
+++ b/Makefile
@@ -25,12 +25,22 @@ init:
 server:
 	uv run python -Wa manage.py runserver
 
+gen-element-types:
+	uv run python manage.py gen_element_types
+
+ts: gen-element-types
+	pnpm exec tsc
+
+ts-check: gen-element-types
+	pnpm exec tsc --noEmit
+
 dev:
 	@pnpm concurrently \
-		--names "Django,Tailwind" \
-		--prefix-colors "blue,green" \
+		--names "Django,Tailwind,TS" \
+		--prefix-colors "blue,green,magenta" \
 		"uv run python -Wa manage.py runserver" \
-		"pnpm tailwindcss -i ./common/input.css -o ./games/static/base.css --watch"
+		"pnpm tailwindcss -i ./common/input.css -o ./games/static/base.css --watch" \
+		"pnpm exec tsc --watch"
 
 
 caddy:
@@ -85,7 +95,7 @@ format:
 format-check:
 	uv run ruff format --check
 
-check: lint format-check test
+check: lint format-check ts-check test
 
 date:
 	uv run python -c 'import datetime; from zoneinfo import ZoneInfo; print(datetime.datetime.isoformat(datetime.datetime.now(ZoneInfo("Europe/Prague")), timespec="minutes", sep=" "))'
diff --git a/package.json b/package.json
index 9860a1e..7666c0d 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,8 @@
     "@tailwindcss/typography": "^0.5.13",
     "concurrently": "^8.2.2",
     "npm-check-updates": "^16.14.20",
-    "tailwindcss": "^4.1.18"
+    "tailwindcss": "^4.1.18",
+    "typescript": "^5.6.0"
   },
   "dependencies": {
     "@tailwindcss/cli": "^4.1.18",
diff --git a/ts/globals.d.ts b/ts/globals.d.ts
new file mode 100644
index 0000000..b0c8127
--- /dev/null
+++ b/ts/globals.d.ts
@@ -0,0 +1,7 @@
+export {};
+
+declare global {
+  interface Window {
+    fetchWithHtmxTriggers(input: RequestInfo | URL, init?: RequestInit): Promise<Response>;
+  }
+}
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..20c5484
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ES2022",
+    "moduleResolution": "Bundler",
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+    "strict": true,
+    "noEmitOnError": true,
+    "forceConsistentCasingInFileNames": true,
+    "rootDir": "ts",
+    "outDir": "games/static/js/dist"
+  },
+  "include": ["ts/**/*.ts"]
+}