Hi there 👋

I'm Andi(@largo)! I like to automate things for myself and others, so I became a programmer! Please leave a comment or an issue if you try out any of my projects and cannot get it to work. I love meeting new people, say hello. お気軽にご連絡ください。

Recent Projects

• Largo/ocran: Turn Ruby Scripts into .exe files. Now with Linux and MacOS Support. Cosmopolitain LibC Support means that a simple Rails app can be shipped as an executable and will run everywhere.

• Largo/cosmoruby: Actually Portable Ruby Executables

• Largo/HacketyHack: HacketyHack working in 2026

• I got Ruboto: Ruby on Android to work with JRuby 10 largo/ruboto. This means Ruby apps working on Android phones and WearOS.

• Working on Drivers and PHP internals.

• My friend Yosei Ito made a tool prremote to run mruby on Rasberry pi pico and ESP32s, which runs on the cmd line. It works very well with AI, because of it. I made inkmodoro as a demo for it.

• how to make ruby on windows a bit faster? I made a patch achieving 2.95× faster start times. This got merged into Ruby Core. Windows: Use less syscalls for faster require of big gems

• Historical Swiss Weather: see high/low temperatures on a map

• Ruby.wasm Template This is a template to start using Ruby.wasm in the browser.

• Largo/ruby.wasm-quickstart: Your ruby scripts in the browser

• Code for koans.idogawa.com

• Largo/glimmer-dsl-web-standalone-demo: This is a demo of Glimmer DSL for Web without rails. It allows you to use Ruby instead of JavaScript.

• 🔭 I’m currently working on improving Ruby for Windows. Checkout my ocra fork: ocran.

• 👯 I’m looking to collaborate on Ruby! I went to Ruby Kaigi 2024, Ruby World 2024 and Ruby Kaigi 2026. Ruby now works anywhere: Windows, OSX, Linux, Android and the browser! Let's make it even easier for everyone to use it! I'm looking forward to Ruby Kaigi 2027 in Miyazaki, Japan, which I recommended to the organizers.

• 🤔 I’m looking for help with Ruby for windows: how to make ruby on windows a bit faster? See Windows: Use less syscalls for faster require of big gems

• 💬 Ask me about anything Ruby! See my Ruby Gems

• 📫 How to reach me: see my email on my website!

• Talk to me in English, (Swiss-)German, Japanese or French!

• Favorite Editor: Micro and VSCode.

• DevOps: I've set up Devcontainers for VSCode so developers don't have to setup their own development environment. I self-host Gitlab.

• ⚡ Fun fact: My approach to development is inspired by Derek Sivers. Check out this cool podcast

Fields of interest: Ruby, MRuby / Picoruby, PHP, Python, JavaScript/Typescript, C/C++/C#, SaaS, VSCode Devcontainers, Docker, Self-hosting, crossplattform (Linux, Windows, MacOS), ecommerce, single developer projects, talking to people and helping them using code, simple solutions like htmx

Blogposts:

• How to compile ruby on Windows and debug with GDB
• How to programm in Ruby on rails your phone or android tablet
• Edit your website on your android phone using termux and git!
• Taking Website Screenshots with Ruby
• How to git diff epub, docx and sqlite files
• Ruby on the frontend demo app
• Exploring the Dynamic World of Animated SVG Favicons