Migrate home-brew back from M1 to Intel
If you still have access to the M1 Mac:
- On the M1 Mac, run
brew bundle dumpand copy the resultingBrewfileto your Intel Mac - On the Intel Mac
- Remove
/opt/homebrew - Install brew using the instructions on brew.sh
- Run
brew bundle install --file /path/to/Brewfileto reinstall packages
- Remove
If you don't have access to your M1 Mac any longer, run ls /opt/homebrew/Cellar on the new Mac to get a list of installed packages, followed by step 2.1 and 2.2 from above. Then manually install the packages again.