Util that can create and read files from a hidden folder in the user's project

[jdtjenkins]

This is more of an RFC I guess, but what do we think about a utility that lets the author create and read files inside a hidden folder just for that integration inside a user's project?

So it'd be something like this:

({ createHiddenFile, readHiddenFile }) => {
  createHiddenFile({
    name: 'foo.ts',
    content: `export default {}`
  })

  const myHiddenFile = await readHiddenFile('foo.ts')
}

These would then save at ${ root }/.[integration.name]/foo.ts So right next to the hidden .astro folder. And it can't read/write outside that folder.

For context, the usecase is:

For my themes, I'm planning on shipping encrypted versions of my component files so that then they can be decrypted on the user's machine if they have the correct permissions with their env variables. So they'll set an env key, it'll check the api for their "level" and then decrypt the components for that level.

But I don't want it to have to make an api call each time they run or build their project. So once it's done one call and gotten the decryption keys I want to store them on the user's machine. Then they can still develop and reinstall and everything without the api.

I realise I could do this relatively easily without a utility. But I'm going to implement this either way, so just wondered if other people thought there'd be any interest in making it an AIK util.