André Arko

At conferences and meetups, and in conversations online, many Ruby developers have asked me about Ruby Central and my disagreement with them.

A new jj tutorial, summarizing a many of the reasons jj is so useful, and powerful, in just a few paragraphs. jj improves upon Git by achieving two opposing goals at the same time: it has a simpler mental model and command set, but simultaneously provides…

Now that I’ve been working on Spinel Cooperative for a full year already, I have finally managed to write the very first post I meant to write about the entire situation: What is Spinel?

jj’s whole deal is that it collapses many Git concepts (stashes, staging, fixups, in-progress rebases, conflicts) into a single unified model of working with history, which then lets you use the same tools to do all of those things.

This post was originally given as a talk at Rubycon IT 2026.

Creating software is complicated.

Last week, three members of Ruby Central’s board published a new statement about RubyGems and Bundler, and this week they published an incident report on the events last year.

This post was originally given as a talk at SF Ruby Meetup.

From the moment RubyGems was first created in 2004, Ruby Central provided governance without claiming ownership, to support the Ruby community.

Originally posted on the Spinel blog.

Originally posted on the Spinel blog.

This post was originally given as a talk at Rocky Mountain Ruby.

On September 9, without warning, Ruby Central kicked out the maintainers who have cared for Bundler and RubyGems for over a decade.

Previously in this series: jj part 3: workflows Just like git, jj offers tiers of configuration that layer on top of one another.

Previously on this blog: jj part 2: commands Now that you hopefully have an idea of how to operate jj, let’s look at the commands you need to get work done in jj.

With the help of many new contributors, and after many late nights wrestling with make, we are happy to (slightly belatedly) announce the 0.2 release of rv!

Ruby Central posted an extremely concerning “Incident Response Timeline” today, in which they make a number of exaggerated or purely misleading claims.

The team behind the last ten years of rubygems.org, including @deivid-rodriguez, @duckinator, @martinemde, @segiddins, @simi, and myself, is very pleased to announce a new gem server for the Ruby community: gem.coop.

Previously on this blog: jj part 1: what is it Now, let’s take a look at the most common jj commands, with a special focus on the way arguments are generally consistent and switches don’t hide totally different additional commands. jj log The log command…

This post was originally given as a talk at the SF Ruby Meetup.