Homebrew requires version tag
https://docs.brew.sh/Acceptable-Formulae#versioned-formulae
Stable versions
Formulae in the core repository must have a stable version tagged by the upstream project. Tarballs are preferred to Git checkouts, and tarballs should include the version in the filename whenever possible.
We don’t accept software without a tagged version because they regularly break due to upstream changes and we can’t provide bottles for them.
Recommend creating tar file from stable branch and linking home-brew to tar file. I'm happy to update the home-brew side if someone here can make the tar and tag the commit.