#tutorials
19 posts
2025 - September
4 posts2025 - August
1 post2025 - April
4 posts2017 - October
2 posts2017 - June
2 posts2016 - March
1 post2015 - November
1 post2012 - July
1 post2011 - April
3 posts2025 - September
4 postsOmarchy 2.0 - LazyVim Basics
A hands-on introduction to LazyVim for people coming from VS Code or Sublime Text, covering the essential Vim navigation, editing, and block commands to get productive fast.
Omarchy 2.0 - Recommended for Beginners?
Why Omarchy is my daily driver, why there is no such thing as a "distro for beginners", and how to use Ventoy and Distrobox to test distros yourself instead of outsourcing your decisions.
Omarchy 2.0 - Install with the Omarchy ISO
Why the official Omarchy ISO is the easiest way to install Omarchy, with LUKS encryption, Limine+Snapper rollback, and Hyprland+UWSM auto-login out of the box.
Omarchy 2.0 - LazyVim - LazyExtras
A practical walkthrough of LazyVim and the :LazyExtras command that ships pre-installed with Omarchy, covering the basic hotkeys and how to enable language support.
2025 - August
1 postHow to Contribute to the AkitaOnRails Blog Using Docker
A quick walkthrough on using Docker to spin up the AkitaOnRails blog development environment and start contributing without installing Hugo, Go, or Ruby locally.
2025 - April
4 postsDissecting an Ollama Modelfile - Tuning Qwen3 for Code
A walkthrough of sampling parameters (temperature, top_p, top_k, min_p, repeat_penalty) and how to build a custom Ollama Modelfile to tune Qwen3 for software development tasks.
Understanding the Basics of ComfyUI to Generate AI Images
A hands-on, no-nonsense walkthrough of ComfyUI's core concepts (checkpoints, LoRAs, ControlNet, VAEs, samplers) and a real workflow for turning a photo into anime-style art.
Generating AI Images - even Ghibli style 😂 - with Docker and CUDA
A technical walkthrough of running ComfyUI locally with Docker and CUDA to generate AI images, including anime and Ghibli styles, with full control over models, extensions, and workflows.
Colorizing Black and White Images with A.I.
Using DDColor inside Docker to colorize old black and white photos, plus a Reinhard global color transfer hack to bias the result toward a reference image.
2017 - October
2 posts[Beginner] Long live PhantomJS, let's use Chrome Headless now
Fabio shows how to replace Poltergeist and PhantomJS with Selenium WebDriver and Chrome Headless in RSpec and Capybara. The setup changed, but the existing feature specs ran without alterations.
How NOT to zero out your Pusher development quota
Pusher Fake keeps Rails development and tests connected to a local server without using Pusher's free quota. Fabio explains the setup with Foreman, matching variables, and RSpec.
2017 - June
2 postsRails 5.1 Deployment Checklist for Heroku
This checklist prepares a small Rails 5.1 app for production on Heroku, covering PostgreSQL, Procfiles, Webpack, a CDN with CORS, Memcached, and SSL, without claiming to fit every scenario.
Starting with Blender
My guide to getting started with Blender covers initial settings like Cycles, Filmic, and CUDA, then moves into photography, composition, and PBR materials. Learning takes study, practice, and shortcuts.
2016 - March
1 postIs your Rails app ready for Production?
A Rails production checklist covers deployment, web servers, monitoring, dependencies, databases, queues, CDNs, and access. The final recommendation is to optimize with metrics before rewriting everything.
2015 - November
1 postElixir 101 - Introducing the Syntax
Using ExMangaDownloadr examples, I introduce pattern matching, recursion, Lists, Tuples, Keyword Lists, and the pipe operator to show how Elixir makes Erlang primitives accessible.
2012 - July
1 post[English] Minimal I18n with Rails 3.2
The author adapts his two-part tutorial on minimal i18n with Rails 3.2 into English, using a demo application hosted on Heroku and code published on GitHub.
2011 - April
3 posts[Objective-C] Distributing your Static Library
Akita shows how to configure targets in Xcode 4, use lipo to combine ARM and i386 binaries into a Universal Binary, and distribute a static library with headers in a reusable ZIP for iOS apps.
[Objective-C] Categories, Static Libraries and Gotchas
While testing an Objective-C static library, Akita finds categories missing at runtime and fixes the linker problem with -all_load on targets that depend on the library.
[Objective-C] It's a Unix System! I know this!
Akita uses strftime and CocoaOniguruma on iOS to create date and regex helpers with Ruby-like syntax, showing how to integrate C libraries into Objective-C without a complex bridge.