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The Crystal Programming language

This tag is for anything related to the Crystal programming language, its ecosystem, and related tooling. Development, usage, apps, shards, tips, and requests for help.

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Cover image for Why Is Crystal Compilation So Slow?

kojix2

Dec 8

Why Is Crystal Compilation So Slow?

#crystal

5 min read

Shaquel Kothari

Nov 28

⚡ Dartalyst: A New Full-Stack SSR Framework That Just Hit 30,937 Requests Per Second

#webdev #dart #javascript #crystal

3 min read

GalactHD

Nov 27

Setup Vite with Kemal!

#crystal #webdev #javascript #vite

2 min read

Cover image for Debugging a Double Free in Crystal with libxml2, GDB, and Valgrind

Michael Nikitochkin

Dec 7

Debugging a Double Free in Crystal with libxml2, GDB, and Valgrind

#crystal #crystallang #programming

5 min read

Cover image for A Practical Guide to Parallel Programming in Crystal (2025)

kojix2

Nov 21

A Practical Guide to Parallel Programming in Crystal (2025)

#crystal

8 min read

Cover image for Lucky is Lightning Fast!

kinvoki

Nov 3

Lucky is Lightning Fast!

#crystal #lucky #benchmarks #performance

3 min read

kojix2

Oct 15

Notes on Building CLI and GUI tools with Crystal

#crystal #webview

4 min read

Oct 6

Announcing Lustra: a Postgres ORM for Crystal

#crystal #orm

2 min read

kojix2

Sep 26

libui and Garbage Collection - Challenges in Creating Ruby and Crystal Bindings

#libui #crystal #ruby

4 min read

kojix2

Sep 22

12 Things I Learned Writing CLI Tools in Crystal

#crystal

4 min read

Cover image for Embedding the Crystal Compiler in Your Program

kojix2

Aug 9

Embedding the Crystal Compiler in Your Program

#crystal

2 min read

kojix2

Aug 7

Writing SIMD in Crystal with Inline Assembly

#crystal #assembly

8 min read

Hedy

Sep 2

How to effectively deal with crystal oscillator failure in TM4C129X MCU

#tm4c129 #crystal #oscillator #ti

3 min read

Cover image for Building Portable Crystal Binaries on macOS with GitHub Actions

kojix2

Jul 21

Building Portable Crystal Binaries on macOS with GitHub Actions

#crystal

2 min read

Marvin Ahlgrimm

Jun 23

Applying the Presenter Pattern in Marten

#marten #crystal #webdev #refactorit

3 min read

kojix2

Jun 20

Writing Inline Assembly in the Crystal Programming Language

#crystal #assembly #llvm

3 min read

Cover image for Instrumenting a Marten App with OpenTelemetry

Michael Nikitochkin

May 13

Instrumenting a Marten App with OpenTelemetry

#crystal #crystallang #programming #marten

7 min read

Cover image for Speeding Up Crystal CI/CD: Fast Drafts, Optimized Builds

Michael Nikitochkin

May 2

Speeding Up Crystal CI/CD: Fast Drafts, Optimized Builds

#crystal #crystallang #marten #cicd

1 min read

Bend

Apr 11

Using marisa.cr for Efficient String Storage in Crystal

#crystal

2 min read

Mar 23

Semaphores in Crystal

#crystal #tutorial #programming

3 min read

kojix2

Mar 23

Building My First Web App with the Help of AI

#crystal #koyeb #neon #cline

4 min read

Cover image for Recording My Crystal Snippets from Today’s Learning

Michael Nikitochkin

Mar 15

Recording My Crystal Snippets from Today’s Learning

#crystal #programming

3 min read

Cover image for Wombat - Syntax Highlighting with Rust's Bat Called from Crystal

kojix2

Jan 16

Wombat - Syntax Highlighting with Rust's Bat Called from Crystal

#crystal #rust #c #bat

6 min read

Cover image for Make Marten Web Framework work with minitest.cr

Michael Nikitochkin

Jan 7

Make Marten Web Framework work with minitest.cr

#crystal #programming #marten

3 min read

Cover image for Yes, Ruby is fast, but…

May 9 '24

Yes, Ruby is fast, but…

#ruby #crystal #performance #programming

5 min read

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