diff --git a/.gitignore b/.gitignore
index c63d997..f66e33a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,7 @@ dist/
 node_modules/
 .DS_Store
 *.local
+.mise.local.toml
+.env
+.env.local
+.env.*.local
diff --git a/mise.toml b/.mise.toml
similarity index 100%
rename from mise.toml
rename to .mise.toml
diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 0000000..d0679d8
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,34 @@
+# impstr — Imposter Party Game
+
+Static PWA party game (like Werewolf/Mafia). No backend, no accounts — runs entirely in the browser.
+
+## Stack
+
+- **Frontend:** React 19, Vite, Tailwind CSS 4, TanStack Router, Zustand
+- **Linting:** Biome (tabs, 80 chars, double quotes)
+
+## Project Structure
+
+```
+src/
+├── features/        ← game logic, UI components
+├── routes/          ← TanStack Router file-based routes
+└── shared/          ← shared components, utilities
+```
+
+## Local Development
+
+```bash
+bun install
+bun run dev
+```
+
+## Deployment
+
+```bash
+./deploy.sh
+```
+
+Deploys to Uberspace (`serve.uber.space`):
+- Static files → `/var/www/virtual/serve/html/impstr/`
+- No backend, no database
diff --git a/biome.json b/biome.json
index 0d5cc8e..c01b2dc 100644
--- a/biome.json
+++ b/biome.json
@@ -5,7 +5,7 @@
 	},
 	"formatter": {
 		"indentStyle": "tab",
-		"lineWidth": 100
+		"lineWidth": 80
 	},
 	"linter": {
 		"enabled": true,
diff --git a/src/features/round/flip-card.tsx b/src/features/round/flip-card.tsx
index b25570f..3a0d732 100644
--- a/src/features/round/flip-card.tsx
+++ b/src/features/round/flip-card.tsx
@@ -24,7 +24,11 @@ export function FlipCard({ word, flipped, onFlip }: FlipCardProps) {
 
 	return (
 		<div
-			className={cn("flip-card", flipped && "flipped", instant && "flip-card--instant")}
+			className={cn(
+				"flip-card",
+				flipped && "flipped",
+				instant && "flip-card--instant",
+			)}
 			onClick={onFlip}
 			onKeyDown={(e) => {
 				if (e.key === "Enter" || e.key === " ") onFlip();
diff --git a/src/features/setup/setup-screen.test.tsx b/src/features/setup/setup-screen.test.tsx
index 77e2641..c95913c 100644
--- a/src/features/setup/setup-screen.test.tsx
+++ b/src/features/setup/setup-screen.test.tsx
@@ -24,7 +24,9 @@ describe("SetupScreen", () => {
 	it("renders the setup screen", () => {
 		render(<SetupScreen />);
 		expect(screen.getByText("Imposter")).toBeInTheDocument();
-		expect(screen.getByPlaceholderText("Spieler hinzufügen…")).toBeInTheDocument();
+		expect(
+			screen.getByPlaceholderText("Spieler hinzufügen…"),
+		).toBeInTheDocument();
 	});
 
 	it("adds a player via button click", () => {
diff --git a/src/features/setup/setup-screen.tsx b/src/features/setup/setup-screen.tsx
index 628d72b..efd81fc 100644
--- a/src/features/setup/setup-screen.tsx
+++ b/src/features/setup/setup-screen.tsx
@@ -39,7 +39,9 @@ export function SetupScreen() {
 			<header className="flex flex-col gap-3">
 				<Badge className="self-center">Partyspiel</Badge>
 				<h1>Imposter</h1>
-				<p className="text-[#5b5b5b]">Findet heraus, wer das geheime Wort nicht kennt!</p>
+				<p className="text-[#5b5b5b]">
+					Findet heraus, wer das geheime Wort nicht kennt!
+				</p>
 			</header>
 
 			<div className="rounded-3xl bg-surface p-6 shadow-[0_2px_16px_rgba(0,0,0,0.06)] animate-fade-in">
@@ -83,14 +85,21 @@ export function SetupScreen() {
 							Alle löschen
 						</Button>
 					)}
-					<Button variant="primary" onClick={startRound} disabled={!canStart} className="flex-1">
+					<Button
+						variant="primary"
+						onClick={startRound}
+						disabled={!canStart}
+						className="flex-1"
+					>
 						Spiel starten
 					</Button>
 				</div>
 			</div>
 
 			{!canStart && players.length > 0 && (
-				<p className="text-sm text-[#5b5b5b]">Mindestens {MIN_PLAYERS} Spieler benötigt</p>
+				<p className="text-sm text-[#5b5b5b]">
+					Mindestens {MIN_PLAYERS} Spieler benötigt
+				</p>
 			)}
 		</div>
 	);
diff --git a/src/shared/components/ui/badge.tsx b/src/shared/components/ui/badge.tsx
index 07388f1..89c6f92 100644
--- a/src/shared/components/ui/badge.tsx
+++ b/src/shared/components/ui/badge.tsx
@@ -1,7 +1,10 @@
 import { cn } from "@/shared/lib/utils";
 import type { HTMLAttributes } from "react";
 
-export function Badge({ className, ...props }: HTMLAttributes<HTMLSpanElement>) {
+export function Badge({
+	className,
+	...props
+}: HTMLAttributes<HTMLSpanElement>) {
 	return (
 		<span
 			className={cn(
diff --git a/src/shared/components/ui/input.tsx b/src/shared/components/ui/input.tsx
index cf4a73d..9ce7891 100644
--- a/src/shared/components/ui/input.tsx
+++ b/src/shared/components/ui/input.tsx
@@ -1,21 +1,22 @@
 import { cn } from "@/shared/lib/utils";
 import { type InputHTMLAttributes, forwardRef } from "react";
 
-export const Input = forwardRef<HTMLInputElement, InputHTMLAttributes<HTMLInputElement>>(
-	({ className, ...props }, ref) => {
-		return (
-			<input
-				ref={ref}
-				className={cn(
-					"w-full rounded-2xl border-2 border-[rgba(26,26,26,0.08)] bg-surface px-5 py-3.5",
-					"font-body text-base text-[#1a1a1a] placeholder:text-[#5b5b5b]",
-					"outline-none transition-colors focus:border-primary",
-					className,
-				)}
-				{...props}
-			/>
-		);
-	},
-);
+export const Input = forwardRef<
+	HTMLInputElement,
+	InputHTMLAttributes<HTMLInputElement>
+>(({ className, ...props }, ref) => {
+	return (
+		<input
+			ref={ref}
+			className={cn(
+				"w-full rounded-2xl border-2 border-[rgba(26,26,26,0.08)] bg-surface px-5 py-3.5",
+				"font-body text-base text-[#1a1a1a] placeholder:text-[#5b5b5b]",
+				"outline-none transition-colors focus:border-primary",
+				className,
+			)}
+			{...props}
+		/>
+	);
+});
 
 Input.displayName = "Input";
diff --git a/src/shared/stores/game-store.test.ts b/src/shared/stores/game-store.test.ts
index d264b0a..f194f3c 100644
--- a/src/shared/stores/game-store.test.ts
+++ b/src/shared/stores/game-store.test.ts
@@ -27,7 +27,9 @@ describe("game-store", () => {
 		it("adds a player and persists to localStorage", () => {
 			getState().addPlayer("Alice");
 			expect(getState().players).toEqual(["Alice"]);
-			expect(JSON.parse(localStorage.getItem("impstr-players") ?? "[]")).toEqual(["Alice"]);
+			expect(
+				JSON.parse(localStorage.getItem("impstr-players") ?? "[]"),
+			).toEqual(["Alice"]);
 		});
 
 		it("trims whitespace", () => {
@@ -58,7 +60,9 @@ describe("game-store", () => {
 			getState().addPlayer("Bob");
 			getState().clearPlayers();
 			expect(getState().players).toEqual([]);
-			expect(JSON.parse(localStorage.getItem("impstr-players") ?? "[]")).toEqual([]);
+			expect(
+				JSON.parse(localStorage.getItem("impstr-players") ?? "[]"),
+			).toEqual([]);
 		});
 	});
 
@@ -76,7 +80,10 @@ describe("game-store", () => {
 		});
 
 		it("filters out non-string entries", () => {
-			localStorage.setItem("impstr-players", JSON.stringify(["Alice", 42, null, "Bob"]));
+			localStorage.setItem(
+				"impstr-players",
+				JSON.stringify(["Alice", 42, null, "Bob"]),
+			);
 			getState().loadPlayers();
 			expect(getState().players).toEqual(["Alice", "Bob"]);
 		});
diff --git a/src/shared/stores/game-store.ts b/src/shared/stores/game-store.ts
index 2cb05ed..3d5cf9f 100644
--- a/src/shared/stores/game-store.ts
+++ b/src/shared/stores/game-store.ts
@@ -93,7 +93,9 @@ export const useGameStore = create<GameState & GameActions>((set, get) => ({
 			if (raw) {
 				const parsed = JSON.parse(raw);
 				if (Array.isArray(parsed)) {
-					set({ players: parsed.filter((p): p is string => typeof p === "string") });
+					set({
+						players: parsed.filter((p): p is string => typeof p === "string"),
+					});
 				}
 			}
 		} catch {
diff --git a/src/test-setup.ts b/src/test-setup.ts
index 7e1502d..2dc78c1 100644
--- a/src/test-setup.ts
+++ b/src/test-setup.ts
@@ -20,4 +20,7 @@ const localStorageMock: Storage = {
 	key: (index: number) => [...store.keys()][index] ?? null,
 };
 
-Object.defineProperty(globalThis, "localStorage", { value: localStorageMock, writable: true });
+Object.defineProperty(globalThis, "localStorage", {
+	value: localStorageMock,
+	writable: true,
+});