tsconfig.json

{
    "compilerOptions": {
        "moduleResolution": "node",
        "module": "es2020",
        "lib": ["es2020", "DOM"],
        "target": "es2020",
        /**
			svelte-preprocess cannot figure out whether you have a value or a type, so tell TypeScript
			to enforce using \`import type\` instead of \`import\` for Types.
			*/
        "importsNotUsedAsValues": "error",
        "isolatedModules": true,
        "resolveJsonModule": true,
        /**
			To have warnings/errors of the Svelte compiler at the correct position,
			enable source maps by default.
			*/
        "sourceMap": true,
        "esModuleInterop": true,
        "skipLibCheck": true,
        "forceConsistentCasingInFileNames": true,
        "baseUrl": ".",
        "allowJs": true,
        "checkJs": true,
        "paths": {
            "$lib": ["src/lib"],
            "$lib/*": ["src/lib/*"]
        },
        "strict": true
    },
    "include": [
        "src/**/*.d.ts",
        "src/**/*.js",
        "src/**/*.ts",
        "src/**/*.svelte"
    ]
}