diff --git a/biome.jsonc b/biome.jsonc
new file mode 100644
index 0000000..0d651b1
--- /dev/null
+++ b/biome.jsonc
@@ -0,0 +1,38 @@
+{
+	"$schema": "https://biomejs.dev/schemas/2.3.14/schema.json",
+	"files": {
+		"includes": [
+			"*.js",
+			"*.ts",
+			"*.json",
+			"*.jsonc",
+			"src/**/*.ts",
+			"src/**/*.svelte",
+			"!src/lib/components/ui/**/*",
+			"!src/worker-configuration.d.ts"
+		]
+	},
+	// https://biomejs.dev/internals/language-support/#linting-html-ish-languages
+	"overrides": [
+		{
+			"includes": ["**/*.svelte", "**/*.astro", "**/*.vue"],
+			"html": {
+				"formatter": {
+					"indentScriptAndStyle": true
+				}
+			},
+			"linter": {
+				"rules": {
+					"style": {
+						"useConst": "off",
+						"useImportType": "off"
+					},
+					"correctness": {
+						"noUnusedVariables": "off",
+						"noUnusedImports": "off"
+					}
+				}
+			}
+		}
+	]
+}
diff --git a/bun.lock b/bun.lock
index 96e4823..d02915e 100644
--- a/bun.lock
+++ b/bun.lock
@@ -5,6 +5,7 @@
     "": {
       "name": "amqtrain",
       "devDependencies": {
+        "@biomejs/biome": "^2.3.14",
         "@sveltejs/adapter-auto": "^7.0.0",
         "@sveltejs/adapter-cloudflare": "^7.2.6",
         "@sveltejs/kit": "^2.50.1",
@@ -20,6 +21,24 @@
     },
   },
   "packages": {
+    "@biomejs/biome": ["@biomejs/biome@2.3.14", "", { "optionalDependencies": { "@biomejs/cli-darwin-arm64": "2.3.14", "@biomejs/cli-darwin-x64": "2.3.14", "@biomejs/cli-linux-arm64": "2.3.14", "@biomejs/cli-linux-arm64-musl": "2.3.14", "@biomejs/cli-linux-x64": "2.3.14", "@biomejs/cli-linux-x64-musl": "2.3.14", "@biomejs/cli-win32-arm64": "2.3.14", "@biomejs/cli-win32-x64": "2.3.14" }, "bin": { "biome": "bin/biome" } }, "sha512-QMT6QviX0WqXJCaiqVMiBUCr5WRQ1iFSjvOLoTk6auKukJMvnMzWucXpwZB0e8F00/1/BsS9DzcKgWH+CLqVuA=="],
+
+    "@biomejs/cli-darwin-arm64": ["@biomejs/cli-darwin-arm64@2.3.14", "", { "os": "darwin", "cpu": "arm64" }, "sha512-UJGPpvWJMkLxSRtpCAKfKh41Q4JJXisvxZL8ChN1eNW3m/WlPFJ6EFDCE7YfUb4XS8ZFi3C1dFpxUJ0Ety5n+A=="],
+
+    "@biomejs/cli-darwin-x64": ["@biomejs/cli-darwin-x64@2.3.14", "", { "os": "darwin", "cpu": "x64" }, "sha512-PNkLNQG6RLo8lG7QoWe/hhnMxJIt1tEimoXpGQjwS/dkdNiKBLPv4RpeQl8o3s1OKI3ZOR5XPiYtmbGGHAOnLA=="],
+
+    "@biomejs/cli-linux-arm64": ["@biomejs/cli-linux-arm64@2.3.14", "", { "os": "linux", "cpu": "arm64" }, "sha512-KT67FKfzIw6DNnUNdYlBg+eU24Go3n75GWK6NwU4+yJmDYFe9i/MjiI+U/iEzKvo0g7G7MZqoyrhIYuND2w8QQ=="],
+
+    "@biomejs/cli-linux-arm64-musl": ["@biomejs/cli-linux-arm64-musl@2.3.14", "", { "os": "linux", "cpu": "arm64" }, "sha512-LInRbXhYujtL3sH2TMCH/UBwJZsoGwfQjBrMfl84CD4hL/41C/EU5mldqf1yoFpsI0iPWuU83U+nB2TUUypWeg=="],
+
+    "@biomejs/cli-linux-x64": ["@biomejs/cli-linux-x64@2.3.14", "", { "os": "linux", "cpu": "x64" }, "sha512-ZsZzQsl9U+wxFrGGS4f6UxREUlgHwmEfu1IrXlgNFrNnd5Th6lIJr8KmSzu/+meSa9f4rzFrbEW9LBBA6ScoMA=="],
+
+    "@biomejs/cli-linux-x64-musl": ["@biomejs/cli-linux-x64-musl@2.3.14", "", { "os": "linux", "cpu": "x64" }, "sha512-KQU7EkbBBuHPW3/rAcoiVmhlPtDSGOGRPv9js7qJVpYTzjQmVR+C9Rfcz+ti8YCH+zT1J52tuBybtP4IodjxZQ=="],
+
+    "@biomejs/cli-win32-arm64": ["@biomejs/cli-win32-arm64@2.3.14", "", { "os": "win32", "cpu": "arm64" }, "sha512-+IKYkj/pUBbnRf1G1+RlyA3LWiDgra1xpS7H2g4BuOzzRbRB+hmlw0yFsLprHhbbt7jUzbzAbAjK/Pn0FDnh1A=="],
+
+    "@biomejs/cli-win32-x64": ["@biomejs/cli-win32-x64@2.3.14", "", { "os": "win32", "cpu": "x64" }, "sha512-oizCjdyQ3WJEswpb3Chdngeat56rIdSYK12JI3iI11Mt5T5EXcZ7WLuowzEaFPNJ3zmOQFliMN8QY1Pi+qsfdQ=="],
+
     "@cloudflare/kv-asset-handler": ["@cloudflare/kv-asset-handler@0.4.2", "", {}, "sha512-SIOD2DxrRRwQ+jgzlXCqoEFiKOFqaPjhnNTGKXSRLvp1HiOvapLaFG2kEr9dYQTYe8rKrd9uvDUzmAITeNyaHQ=="],
 
     "@cloudflare/unenv-preset": ["@cloudflare/unenv-preset@2.12.0", "", { "peerDependencies": { "unenv": "2.0.0-rc.24", "workerd": "^1.20260115.0" }, "optionalPeers": ["workerd"] }, "sha512-NK4vN+2Z/GbfGS4BamtbbVk1rcu5RmqaYGiyHJQrA09AoxdZPHDF3W/EhgI0YSK8p3vRo/VNCtbSJFPON7FWMQ=="],
diff --git a/package.json b/package.json
index 9eb8b80..e9c26a0 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,7 @@
 		"dev": "vite dev",
 		"build": "vite build",
 		"preview": "bun run build && wrangler dev",
+		"format": "biome check --write",
 		"prepare": "svelte-kit sync || echo ''",
 		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
 		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
@@ -14,6 +15,7 @@
 		"cf-typegen": "wrangler types ./src/worker-configuration.d.ts"
 	},
 	"devDependencies": {
+		"@biomejs/biome": "^2.3.14",
 		"@sveltejs/adapter-auto": "^7.0.0",
 		"@sveltejs/adapter-cloudflare": "^7.2.6",
 		"@sveltejs/kit": "^2.50.1",
@@ -26,4 +28,4 @@
 		"vite": "^7.3.1",
 		"wrangler": "^4.62.0"
 	}
-}
\ No newline at end of file
+}