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Closer to Code

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Website title: Closer to Code - Blog about coding in various languages, security, and my other IT adventures.

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Message History

Announcing YARD-Lint: Keep Your Ruby Documentation Solid

TL;DR: YARD-Lint catches documentation issues, just like RuboCop for code. Star it and use it now.

I am happy to announce the release of YARD-Lint, a comprehensive linter designed for YARD documentation in Ruby and Rails projects. This gem i...

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When Your Hash Becomes a String: Hunting Ruby’s Million-to-One Memory Bug

Every developer who maintains Ruby gems knows that sinking feeling when a user reports an error that shouldn't be possible. Not "difficult to reproduce", but truly impossible according to everything you know about how your code works.

That's exactly what hit me when Karafka us...

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Announcing llm-docs-builder: An Open Source Tool for Making Documentation AI-Friendly

I am excited to announce the release of llm-docs-builder, a library that transforms Markdown documentation into an AI-optimized format for Large Language Models.

TL;DR: Open source tool that strips 85-95% of noise from documentation for AI systems. T...

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When Responsibility and Power Collide: Lessons from the RubyGems Crisis

The Ruby community experienced significant turbulence in September 2025 when Ruby Central forcibly took control of the RubyGems GitHub organization, removing long-standing maintainers without warning. As someone who has worked extensively on RubyGems security - first independently and later with Mend.i...

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WaterDrop Meets Ruby’s Async Ecosystem: Lightweight Concurrency Done Right

Ruby developers have faced an uncomfortable truth for years: when you need to talk to external systems like Kafka, you're going to block. Sure, you could reach for heavyweight solutions like EventMachine, Celluloid, or spawn additional threads, but each comes with its own complexity tax.

EventMachine forces you into callback hell. Threading introduces race conditions a...

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