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Having built developer tools for half my career (literally!), I decided to build something “useless” this time. Today I’m announcing RubyLens, a gem that turns your Ruby codebase into a galaxy, as either a page or a video! Here’s an example using Discourse：

28/7/26, 3:11 pm0 reposts6 likes

Stan Lo

@st0012.dev

28 July

RubyLens uses Shopify’s Rubydex to map classes, modules, tests, and dependencies. It runs locally and generates a self-contained HTML file, so your code doesn’t leave your machine. github.com/st0012/rubyl...

github.comGitHub - st0012/rubylens: Turn your Ruby codebase into a galaxyTurn your Ruby codebase into a galaxy. Contribute to st0012/rubylens development by creating an account on GitHub.

Stan Lo

@st0012.dev

28 July

I also generated Ruby Galaxies for RuboCop, Rails, Discourse, and rubygems.org Click any galaxy to open its Explorer and see how Ruby codebases of different sizes form different shapes: st0012.dev/ruby-galaxies/

st0012.devRuby Galaxies — Four Ruby codebases visualized with RubyLensFour Ruby codebases rendered as live galaxies by RubyLens, with interactive Explorers for every project.