things-that-can-go-wrong.txt

  - no gh account linked
  - linked, but token has no access
  - no permission to push, gh side (404!)
  - not a gh repo
  - diff has a missing binary file
  - not fast-forward / repo moving too fast.
  - not git repo
  - diff not based on something from remote. (if implemented with rebase)
  - diff does not apply cleanly to master (if implemented with patch)
  - blob created with hashcode that is different to the local one