I was a macports user but had to switch to homebrew because most new projects went there and it was generally easier to write Formulars etc. But I never really liked the project. I think writing a new package manager on top of brew infrastructure won‘t create a better setup. I don‘t know if all casks and Formulars only use the DSL stanzas or if still some use custom ruby functions and helpers. Because otherwise this new tool might need to eval ruby scripts for backwards compatibility.