kojix2 articles - 48 total
Embedding the Crystal Compiler in Your Program
Introduction The Crystal compiler can be used as a library. This document explains how to...
Easily Visualize Debian Package Dependencies with debtree
Introduction Sometimes you might want a quick and easy way to visualize and understand...
Writing SIMD in Crystal with Inline Assembly
Introduction In this article, we explore how to write SIMD instructions—SSE for x86\64 and...
Building Portable Crystal Binaries on macOS with GitHub Actions
Overview If you’ve ever tried to share a Crystal tool you built, you may have noticed that...
Writing Inline Assembly in the Crystal Programming Language
Introduction When you want to make your code run significantly faster, or just want to...
Building My First Web App with the Help of AI
Introduction Since the beginning of 2025, AI agents have made dramatic progress. We're now...
Wombat - Syntax Highlighting with Rust's Bat Called from Crystal
Introduction Hello! Have you heard of the command-line tool bat, written in Rust? bat...
Scan Your Linux Disk and Visualize It on Mac with GrandPerspective
Introduction GrandPerspective is a useful disk space visualization tool for Mac. Have you...
One-Liner for Finding Typos
Let's Find Those Typos typos. typos --format brief --color always | ruby -e 'puts...
How to Fix the 'argp.h' Not Found Error on macOS
When compiling a Linux-oriented tool written in C/C++ on macOS, you might encounter the following...
Mixing FFI, Fiddle, and C Extension in Ruby
Introduction If you're working with Ruby and need to invoke a function written in C...
Using Ruby with Conda🐍
There might be cases where you want to install and use Ruby with Anaconda or Miniconda. Normally, you...
Calling Deepl's API from the Crystal language
As the title suggests, recently, ChatGPT is becoming popular. However, ChatGPT is more accurate in...
Calling the ChatGPT API interactively from Crystal language
require "http/client" require "json" require "colorize" struct PostData include...
Calling OpenAI API from Crystal Language
If you want to use OpenAI API from Crystal Language, you can use the following code. (Note that you...
Act like a cat! - Calling the OpenAI API from Ruby
I heard that ChatGPT API has been released. You can call it easily from Ruby. I wrote a mini...
Tried Polars in Ruby
Polars is a data frame in the Rust language using Apache Arrow Columnar Format. polars-ruby is the...
Meld, a GUI tool for diffing, in the Age of ChatGPT
This article was translated into English by ChatGPT. The original post is here. Convenient...
Show a Tanuki with Samtools!
↑ Tanukis (raccoon dogs) at Obihiro Zoo (Wikimedia) __,-─-､__ （〆-─-ヽ) （ ´・ω・｀ ） <...
UMAP clustering in Ruby
Introduction Uniform Manifold Approximation and Projection (UMAP) is a well-known...
Text generation with GPT-2 in Ruby
Introduction Many people think that accessing AI from languages other than Python is too...
YOLOv7 object detection in Ruby in 10 minutes
Young people these days don't do Ruby. So I am writing this note about YOLOv7 in Ruby. Since there...
Fast multi-core installation of Ruby gems with C extensions
It's easy. Simply set the environment variable GNUMAKEFLAGS or MAKEFLAGS. export...
💎 `eval` in Crystal language! Anyolite 🟢🔴 is amazing...
There is no eval in the Crystal language. If you had to use eval in the Crystal language, you would...
How to define exceptions in Ruby C extension library
introduction In the Ruby language, exceptions are defined by inheriting...
Create shared library symbolic links when crystal interpreter does not work in crystal 1.4.0
When I run crystal i on Ubuntu impish, I get the following message. librt.so is missing libdl.so is...
Create Github Pages in the mint language
When executing the mint build command, several options need to be added. See:...
I built my Crystal language tool with Github Actions and added the deb created by checkinstall to the release page...
Distributing tools created in the Crystal language People use the Crystal language for...
ffi-bitfield - read/write bit fields with Ruby-FFI
Bit field for Ruby-FFI