tsconfig.json

{
    "include": [
      "src",
      "types"
    ],
    "compilerOptions": {
      "module": "esnext",
      "target": "esnext",
      "moduleResolution": "node",
      "jsx": "preserve",
      "baseUrl": "./",
      /* paths - import rewriting/resolving */
      "paths": {
        // If you configured any Snowpack aliases, add them here.
        // Add this line to get types for streaming imports (packageOptions.source="remote"):
        "*": [
          ".snowpack/types/*",
          "src/client/*"
        ]
        // More info: https://www.snowpack.dev/guides/streaming-imports
      },
      /* noEmit - Snowpack builds (emits) files, not tsc. */
      "noEmit": true,
      /* Additional Options */
      "strict": true,
      "skipLibCheck": true,
      "types": [
        "mocha",
        "snowpack-env"
      ],
      "forceConsistentCasingInFileNames": true,
      "resolveJsonModule": true,
      "allowSyntheticDefaultImports": true,
      "importsNotUsedAsValues": "error"
    }
  }