TutorialKit.rb, a toolkit for building interactive Ruby and Rails tutorials that run entirely in the browser, has reached the release candidate stage and is ready for general use. In this post, there is a walk-through of the final DX for building tutorials, sharing some real-world examples, and the research behind the project.
Note: This is the final Ruby Association Grant 2025 report on the TutorialKit.rb project. For the background, motivation, and initial research, see Part 1: the ruby.wasm journey goes onward.