rv, a new kind of Ruby management tool

For the last ten years or so of working on Bundler, I’ve had a wish rattling around: I want a better dependency manager. It doesn’t just manage your gems, it manages your ruby versions, too. It doesn’t just manage your ruby versions, it installs pre-compiled rubies so you don’t have to wait for ruby to compile from source every time. And more than all of that, it makes it completely trivial to run any script or tool written in ruby, even if that script or tool needs a different ruby than your application does. During all those years of daydreaming, I’ve been hoping someone else would build this tool and I could just use it. Then I discovered that someone did build it… but for Python. It’s called uv, and almost exactly one year ago version 0.3 shipped with all the features I had wished for, and even a few more that I hadn’t thought to wish for. Originally created as an alternative to pip, poetry, and all the other Python dependency managers, uv grew to encompass several existing tools, and has a few completely new tricks up its sleeve.