These are some personal Homebrew formulae I maintain for personal use.

To add this tap and make its formulae available to you:

brew tap pmer/pmer

All the formulae names are prefixed with pmer- for easy recognition.

brew remove vim  # If installed...
brew install pmer-vim --HEAD

To remove this tap and go back to your previous versions:

brew remove pmer-vim
brew untap pmer/pmer
brew install vim  # To reinstall the standard Homebrew version...

Homebrew can't upgrade HEAD formulas—it's a known issue. Use reinstall to upgrade forumlae from pmer.

brew reinstall pmer-vim --HEAD

• pmer-vim
• pmer-macvim