tsconfig.json

{
    "compilerOptions": {
        "rootDir": ".",
        "outDir": "build",

        "incremental": true,
        "tsBuildInfoFile": "./build/ts-cache.tsbuildinfo",

        "lib": [
            "es2018",
            "es2020.string",
            "dom",
            "dom.iterable",
            "scripthost"
            // "esnext.bigint"
        ],
        // Only include the types for jest, not all the ones in node_modules/@types,
        // which include NodeJS definitions that are not applicable to a web app
        "types": [
            "./node_modules/@types/jest",
            "./node_modules/@types/css-font-loading-module"
        ],

        // "declaration": true,
        // "allowJs": true,
        // "checkJs": true,

        "emitDecoratorMetadata": true,
        "experimentalDecorators": true,

        "target": "es2019",
        "module": "esnext",
        "esModuleInterop": true,
        "moduleResolution": "node",
        "resolveJsonModule": true,

        "strictNullChecks": false,
        "noImplicitAny": false,
        "noLib": false,
        // We'll strip the comments with rollup.
        // Need them for the declaration files
        "removeComments": false,
        "sourceMap": true
    },
    "exclude": [
        "coverage",
        // "test",
        "node_modules",
        "**/*.spec.ts",
        "dist",
        "build",
        "examples",
        "docs",
        "tutorials",
        "**/*.config.js"
    ]
}