Setting a disk cache size limit

[francis-io]

I want to run Music Assistant on a device with limited local storage (Raspberry Pi CM4) with a max local storage size of 32GB. It would be great to be able to set a max local cache size (for example, 20 GB's), deleting the oldest accessed media first.

Other options to solve this problem:

• A cleanup script to run on a cron to delete the oldest files in the cache if the total size is over the set max limit (would MA gracefully redownload cached data if it suddenly goes missing?)
• Limiting the cache directory to only a certain size using Linux disk quotas
• Having a dedicated caching server, like Redis (but I expect this would be a big redesign of the app and logic)

Many thanks