tsconfig.json

{
    "compilerOptions": {
        "strict": true,
        "noFallthroughCasesInSwitch": true,
        "noImplicitOverride": true,
        "noImplicitReturns": true,
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "useUnknownInCatchVariables": true,

        "module": "NodeNext",
        "moduleResolution": "NodeNext",
        "verbatimModuleSyntax": true,

        "declaration": true,
        // to make declaration map useful, we need to publish src
        // but it might help when debugging
        "declarationMap": true,
        "emitDeclarationOnly": true,
        "stripInternal": true,

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

        "forceConsistentCasingInFileNames": true,
        "lib": ["ES2022"],

        "incremental": true,
        "declarationDir": "./declaration/",
        "tsBuildInfoFile": "./declaration/.tsbuildinfo",

        "skipLibCheck": true
    },
    "include": ["./src/"]
}