To install pre-build artifacts from https://github.com/MuhammedKalkan/OpenLens use this:
brew install jkroepke/openlens/openlens
To install OpenLens from source (build is done locally), use this:
brew install jkroepke/openlens/openlens-from-source
See lensapp/lens#5444 for more reference.
brew help
, man brew
or check Homebrew's documentation.