tsconfig.json

{
  "extends": "@tsconfig/svelte/tsconfig.json",
  "include": ["src", "types"],
  "compilerOptions": {
    "module": "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/*"]
      // 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", "@types/snowpack-env", "svelte"],
    "forceConsistentCasingInFileNames": true,
    "resolveJsonModule": true,
    "useDefineForClassFields": true,
    "allowSyntheticDefaultImports": true,
    "importsNotUsedAsValues": "error"
  }
}