YouTube video by GitButler

This post was originally given as a talk at JJ Con 2026. The slides are also available. Hello! Welcome to “beyond jj”, where we’re going to take a look at the jj ecosystem: commands, configurations, a...

🏔️ A new overview for Ruby's vast gems, from up here we can spot them all. - gem-coop/peak

Thirty years of voluntary funding schemes haven't paid open source maintainers because asking doesn't scale. The real money already flows — to JFrog, Docker, Sonatype — at the registry layer. The fix: registries charge companies for supply (they already do), then route a slice automatically to the maintainers who make that supply worth having.

Important Note: Although I work at Apple in the password management and app/website authentication spaces, in this post I am speaking only for myself, personally. There is no “news” in this post or any kind of “inside scoop”. Please do share this post, but if I see “Apple’s Ricky Mondello” anywhere…

A deep dive into the internals of the Git version control system and the computer science behind it

At conferences and meetups, and in conversations online, many Ruby developers have asked me about Ruby Central and my disagreement with them. This post is my attempt to answer the questions I’ve been getting over and over, covering: 1) what is Ruby Central doing now? 2) has the dispute over Bundler…

This post was originally given as a talk at Rubycon IT 2026. The slides are also available. It’s been a while since I first talked about rv, a Ruby manager for the future. I’d like give an update on what we’ve done since then, but I’m going to recap some of that earlier post first to give context f…

Discover rv, the fast Ruby version manager. Step-by-step guide to install Ruby on Linux (Fedora) with rv, set up RubyMine, and run your first Hello World.

hi again everyone, we’re back with exciting news. namespaces on gem.coop have been promoted out of beta and into general availability. that means you can use namespaced gems directly from the top-leve...

It’s time to bring the family together.

Ever since its eponymous report was published nearly a decade ago, the "roads and bridges" metaphor has dominated how many working with FOSS software, including I, think about open source sustainability. Nadia Asparouhova's influential 2016 report painted a picture of critical digital infrastructur…