Blog
I’m Andi Idogawa. I write software to help people save time.
Here you will find my collection of writings, tutorials and more.
Contact me at web@idogawa.com
Posts
2026
- 29 Sep ruby_pptx: PowerPoint files from Ruby
- 29 Sep openssl-win-root: Use the Windows Certificate Store with Ruby
- 29 Sep OCRAN: Turn Ruby Scripts into Executables for Windows, Linux and macOS
- 29 Sep Kumi: Calculation Logic in Ruby That Also Runs in JavaScript
- 29 Sep jsg: a small helper for ruby.wasm projects
- 29 Sep The file_exists Gem: File.exists? and Dir.exists? on Ruby 3.2+
- 29 Sep clogs: Shoes programs on plain CRuby
2025
- 30 Jul Use a 106-key Japanese keyboard on Windows 11
- 01 Jan Essential VS Code Hotkeys for Developer Productivity
2024
- 24 Jan Ruby on the frontend demo app
- 19 Jan Exploring the Dynamic World of Animated SVG Favicons
- 16 Jan How to git diff epub, docx and sqlite files
2023
- 25 Aug Crafting a Professional Invoice with Markdown
- 01 Feb How to Get a List of Installed Programs in Windows using Ruby
- 19 Jan File.exists? and Dir.exists? on Ruby 3.2 Workaround
- 14 Jan How to have less tabs open in Firefox
- 14 Jan How to compile ruby on Windows and debug with GDB
2022
- 18 Dec 2022 - The year English became a programming language
- 17 Dec Making a todo app with ChatGPT AI
- 09 Dec Happy Endings for formerly sad Movies by ChatGPT AI
- 23 Nov How to scan school books
- 20 Nov How to programm in Python on your phone or android tablet
- 20 Nov How to install Linux on Android using Termux
- 20 Nov How to programm in Ruby on rails your phone or android tablet
- 20 Nov How to programm in PHP your phone or android tablet
- 20 Nov Edit your website on your android phone using termux and git!
- 15 Nov What the heck is Mastodon and the Fediverse?
- 02 Nov How to deploy with git
- 30 Oct The Miyazaki Kobe Car Ferry
- 16 Jun Taking Website Screenshots with Ruby
- 28 Jan A Software Engineers Short Review of the Kensington Expert Mouse Wireless Trackball
- 27 Jan How to use a USB DisplayLink Monitor with an Raspberry Pi 4