tsconfig.json

{
  "compilerOptions": {
    "target": "ESNext",
    "module": "ESNext",
    "moduleResolution": "Node",
    "useDefineForClassFields": true,
    "lib": ["dom", "dom.iterable", "ESNext"],
    "allowJs": false,
    "skipLibCheck": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "esModuleInterop": true,
    "resolveJsonModule": true,
    "isolatedModules": true,
    "emitDeclarationOnly": true,
    "declaration": true,
    "sourceMap": true,
    "outDir": "./dist",
    "allowSyntheticDefaultImports": true,
    "baseUrl": ".",
    "types": ["vitest/globals"],
    "paths": {
      "css-text": ["src/css-text.ts"]
    }
  },
  "include": ["src/**/*.ts", "demo/main.ts"],
  "exclude": ["node_modules", "dist"],
  "references": [{"path": "./tsconfig.node.json"}]
}