Why didn't you like the project if it was a better project by most definitions of what makes a good package manager? e.g. what did you want from a package manager besides 1. easy to install packages 2. readily updated packages.
Edit: And I got reminded that it was possible to run and install packages for and from multiple users. Brew took over /usr/local/bin and other /usr/local/homebrew for the running user. Managing a system with multiple users with brew was and still is hard. With macports you needed sudo like with most other package managers. The sudo less nature was a huge deal for its adoption. And now maybe a security risk if you ask me.
Not OP, but I want my package manager to have good UX around package installs and updates, not it deciding to update a Python major version because a random small thing I'm installing it requests it.