The slowness is mostly due to Ruby and the git pull. I contributed in the past and reimplemented it in bash, and there isn't much going on, honestly. 99% of th

The slowness is mostly due to Ruby and the git pull. I contributed in the past and reimplemented it in bash, and there isn't much going on, honestly. 99% of the time, installing a package consists of downloading a few zips from their CDN, decompressing and linking. For those cases Brew could just be checking an API instead of constantly cloning the git repository. I'm quite surprised nobody has reimplemented it in Rust or Go. The architecture is quite simple compared to a normal package manager. Maybe it's just superstition: people see "package manager" and assume it's complicated instead of digging into the code and finding out how it works.