MacFix
Dev setup
git, make, clang, Homebrew, or Xcode itself stopped behaving — usually right after an update — this cluster is about the developer toolchain specifically, not general app problems.
Symptom → article
| What you're seeing | Article |
|---|---|
| Terminal says "invalid active developer path" and git/make stopped working | Invalid active developer path |
| A specific project build fails with "error 65" or a code-signing error | Xcode error 65 and code signing failures on Apple Silicon |