tsconfig.json

{
    "compilerOptions": {
        "allowSyntheticDefaultImports": true,
        "target": "ES2015",
        "lib": ["dom", "es6", "es2016"],
        "esModuleInterop": true,
        "moduleResolution": "node",
        "resolveJsonModule": true,
        "skipLibCheck": true,
        // Preact config
        "jsx": "react-jsx",
        "jsxImportSource": "preact",
        "baseUrl": "./",
        "paths": {
            "react": ["./node_modules/preact/compat/"],
            "react-dom": ["./node_modules/preact/compat/"]
        }
    },
    "ts-node": {
        "transpileOnly": true,
        "compilerOptions": {
            "types": ["filesystem", "node"],
            "resolveJsonModule": true,
            "esModuleInterop": true,
            "module":"CommonJS",
          }
    },
    "include": [
        "*.ts",
        "src/**/*.ts",
        "src/**/*.tsx",
        "test/**/*.ts",
        "tasks/**/*.ts",
        "**/.eslintrc.js"
    ]
}