Add linting and CI.

.github/workflows/CI.yaml

@@ -9,6 +9,14 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
-        with:
-          node-version: 22
+      - uses: oven-sh/setup-bun@v1
       - run: make build
+
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+      - uses: oven-sh/setup-bun@v1
+      - run: make lint

Makefile

@@ -35,3 +35,19 @@ prepack: clean test
 .PHONY: deploy
 deploy: clean build-site
 	bunx @cubing/deploy
+
+.PHONY: test
+test:
+	lint
+
+.PHONY: lint
+lint:
+	bun x @biomejs/biome check
+
+.PHONY: format
+format:
+	bun x @biomejs/biome check --write
+
+.PHONY: publish
+publish:
+	npm publish

biome.json

@@ -0,0 +1,10 @@
+{
+  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
+  "files": {
+    "ignore": ["./dist", "./package.json"]
+  },
+  "formatter": {
+    "indentStyle": "space",
+    "indentWidth": 2
+  }
+}