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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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Embedding the Crystal Compiler in Your Program

Embedding the Crystal Compiler in Your Program

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2 min read
Writing SIMD in Crystal with Inline Assembly

Writing SIMD in Crystal with Inline Assembly

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8 min read
Building Portable Crystal Binaries on macOS with GitHub Actions

Building Portable Crystal Binaries on macOS with GitHub Actions

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2 min read
Applying the Presenter Pattern in Marten

Applying the Presenter Pattern in Marten

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3 min read
Writing Inline Assembly in the Crystal Programming Language

Writing Inline Assembly in the Crystal Programming Language

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3 min read
Instrumenting a Marten App with OpenTelemetry

Instrumenting a Marten App with OpenTelemetry

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

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

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1 min read
Using marisa.cr for Efficient String Storage in Crystal

Using marisa.cr for Efficient String Storage in Crystal

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2 min read
Semaphores in Crystal

Semaphores in Crystal

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Building My First Web App with the Help of AI

Building My First Web App with the Help of AI

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4 min read
Recording My Crystal Snippets from Today’s Learning

Recording My Crystal Snippets from Today’s Learning

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

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

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6 min read
Make Marten Web Framework work with minitest.cr

Make Marten Web Framework work with minitest.cr

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3 min read
Yes, Ruby is fast, but…

Yes, Ruby is fast, but…

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5 min read
Add @Hotwire/Turbo to a Lucky Application

Add @Hotwire/Turbo to a Lucky Application

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1 min read
Advent of Code #14 (in Crystal)

Advent of Code #14 (in Crystal)

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2 min read
Advent of Code #12 (in Crystal)

Advent of Code #12 (in Crystal)

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2 min read
Advent of Code #13 (in Crystal)

Advent of Code #13 (in Crystal)

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1 min read
Advent of Code #11 (in Crystal)

Advent of Code #11 (in Crystal)

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1 min read
Advent of Code #6 (in Crystal)

Advent of Code #6 (in Crystal)

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1 min read
Advent of Code #4 (in Crystal)

Advent of Code #4 (in Crystal)

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3 min read
Advent of Code #3 (in Crystal)

Advent of Code #3 (in Crystal)

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2 min read
Advent of Code #16 (in Crystal)

Advent of Code #16 (in Crystal)

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2 min read
Advent of Code #5 (in Crystal)

Advent of Code #5 (in Crystal)

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2 min read
Advent of Code #10 (in Crystal)

Advent of Code #10 (in Crystal)

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2 min read
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