if I have an env file .env.development in the root directory, this works:

import { PUBLIC_FOO } from '$env/static/public';
...
console.log(PUBLIC_FOO); // works

However, if I have a custom env directory, it does not. But import.meta.env does work (for VITE_ properties as mentioned in the vite docs, but not PUBLIC_)

// vite.config.ts
export default defineConfig({
  plugins: [sveltekit()],
  envDir: 'env',
  test: {
    include: ['src/**/*.{test,spec}.{js,ts}'],
  }
});

// foo.svelte
import { PUBLIC_FOO } from '$env/static/public';
...
console.log(PUBLIC_FOO); // does not work
console.log(import.meta.env.PUBLIC_FOO) // does not work
console.log(import.meta.env.VITE_FOO) // works