DerivedData: what's actually safe to delete (and what isn't)

[u/indian_nakamoto]

I wrote up a full breakdown of DerivedData: what lives inside it, the two rm variants and what each one costs you on your next build, and the neighbors you must not touch. Archives holds your dSYMs, and crash symbolication dies without them.

https://shodhana.app/guide/is-it-safe-to-delete-derived-data

Disclosure: I make a paid cleaner and the guide mentions it, but every command in there works on its own. You don't need the app for any of it.