// ... other imports
import alias from "@rollup/plugin-alias";

// ..
  plugins: [
    // ... after typescript({..})
    
    alias({
      entries: [
        // If you add a new top-level-folder besides src which you want to use, add it here
        { find: /^src(\/|$)/, replacement: `${__dirname}/src/` },
      ],
    }),