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Giménez Silva Germán Alberto @[email protected] · 2026-04-30 · 02:31 UTC

Ruby beyond the server 👇

Opal lets you run Ruby inside the JavaScript runtime—browser, Node, even edge.
Not a transpiler. A full Ruby VM in JS.
Here’s what works, what breaks, and why it matters:
👉 https://rubystacknews.com/2026/04/29/opal-running-ruby-in-the-javascript-runtime-without-losing-your-mind/

#ruby #javascript #webdev #opal #programming

Giménez Silva Germán Alberto @[email protected] · 2026-03-23 · 03:05 UTC

Can Ruby Read an X-Ray? Building a Medical Image Processor.

When I built ruby-libgd I included Sobel edge detection, Laplacian filter, Gaussian blur, and custom convolution as native C bindings. I knew those filters would be useful someday.

Turns out medical imaging is exactly that use case.

Full article with code and Jupyter notebook below.

https://rubystacknews.com/2026/03/23/can-ruby-read-an-x-ray-building-a-medical-image-processor/

#Ruby #MedicalImaging #DataScience #RubyDev #ImageProcessing

#ruby #medicalimaging #datascience #rubydev #imageprocessing

Giménez Silva Germán Alberto @[email protected] · 2026-03-13 · 21:58 UTC

I always envied Python developers typing plt.show() in Jupyter and getting a beautiful graph.

So I built the Ruby equivalent.

Docker + JupyterLab + Ruby kernel + ruby-libgd:

```
plot = Plot.new
plot.add("sin(x)")
plot.add("x**2 + y**2 - 9", type: :implicit)
plot.render("/work/graph.png")
```

Scientific plotting is coming to Ruby. Full article on RubyStackNews — link in comments.

https://rubystacknews.com/2026/03/13/plotting-mathematical-functions-in-ruby-inside-jupyter/

#Ruby #JupyterNotebook #OpenSource #RubyLibGD

#ruby #jupyternotebook #opensource #rubylibgd

Giménez Silva Germán Alberto @[email protected] · 2026-03-12 · 02:04 UTC

🚀 Run Ruby on Rails entirely in your browser!

I just published a deep-dive guide: “Ruby on Rails on WebAssembly: A Full-Stack, In-Browser Journey”. Learn how to:

✅ Compile Ruby and Rails to Wasm
✅ Run SQLite and Active Record in-browser
✅ Handle file uploads via OPFS
✅ Launch your app as a PWA
✅ Build offline-first apps, demos, and educational playgrounds

🔗 Read the full article https://rubystacknews.com/2026/03/11/ruby-on-rails-on-webassembly-a-full-stack-in-browser-journey/

#Ruby #Rails #WebAssembly #Wasm #FullStack #PWA #InBrowserDev #RubyOnRails #WebDev

#ruby #rails #webassembly #wasm #fullstack #pwa

Giménez Silva Germán Alberto @[email protected] · 2026-03-11 · 03:25 UTC

Most developers associate Ruby with web applications, but Ruby can also run inside embedded systems, firmware, and IoT devices.

If you're curious about Ruby beyond the server, this ecosystem is definitely worth exploring.

https://rubystacknews.com/2026/03/11/mruby-gems-extending-ruby-for-embedded-systems/

#Ruby #mruby #EmbeddedSystems #IoT #OpenSource

#ruby #mruby #embeddedsystems #iot #opensource

Giménez Silva Germán Alberto @[email protected] · 2026-03-10 · 01:52 UTC

🚀 ruby-libgd hits 3,000 downloads!

From version 0.1.0 in January to 0.3.0 in March, ruby-libgd has grown into a lightweight, efficient Ruby library for dynamic image generation, filters, and GIF animations.

Years of iteration, community feedback, and careful optimization have brought us here — and the journey is just beginning. 🌟

Discover the library’s capabilities, the milestone story, and what’s next: https://rubystacknews.com/2026/03/09/ruby-libgd-reaches-3000-downloads-a-milestone-in-ruby-image-generation/

#Ruby #OpenSource #ImageGeneration #GIF #rubyLibGD

#ruby #opensource #imagegeneration #gif #rubylibgd

Giménez Silva Germán Alberto @[email protected] · 2026-03-02 · 02:02 UTC

In this article, I explore the modern Ruby CLI stack — Thor, TTY Toolkit, and more — and show how to move from simple scripts to polished terminal applications.

👉 If you build developer tools, automation, DevOps utilities, or internal platforms, this ecosystem is worth knowing.

Ruby on Terminal is real — and it’s powerful.

🔗 Read the article: https://rubystacknews.com/2026/03/01/%f0%9f%9a%80-terminal-ux-in-ruby-beautiful-tools-without-leaving-the-shell/

#Ruby #CLI #DevTools #Terminal #SoftwareEngineering #RubyLang #OpenSource

#ruby #cli #devtools #terminal #softwareengineering #rubylang

Giménez Silva Germán Alberto @[email protected] · 2026-02-27 · 01:35 UTC

Rack isn’t just a gem — it’s the interface that connects Ruby web frameworks to the outside world.

With Rack 3, the project is actively evolving to support modern workloads: stricter contracts, improved streaming, stronger security, and a more modular core.

A deep dive into why Rack remains the backbone of the Ruby web stack 👇
👉 https://rubystacknews.com/2026/02/26/%f0%9f%a7%b1-rack-is-still-innovating-the-backbone-of-rubys-web-stack-keeps-evolving/

#ruby #rack #rails #webdev #opensource

Giménez Silva Germán Alberto @[email protected] · 2026-02-19 · 03:18 UTC

⚡ From ~30 minutes to ~2 minutes: how a Rails team achieved ultra-fast CI — without rewriting tests.

Parallel RSpec done right, smart workload balancing, PostgreSQL on tmpfs (RAM), and even reconsidering cloud vs physical hardware.

Inspired by a Kaigi on Rails 2025 talk 🇯🇵

🔗 https://rubystacknews.com/2026/02/18/%e2%9a%a1-from-30-minutes-to-2-speed-running-rails-ci-without-cheating-much/

#Ruby #Rails #CI #RSpec #DevOps #Performance #KaigiOnRails

#ruby #rails #ci #rspec #devops #performance

Giménez Silva Germán Alberto @[email protected] · 2026-02-18 · 02:52 UTC

🚫 Stop checking admin? — it may be creating technical debt.

Authorization bugs aren’t minor issues.
They can expose salaries, contracts, or customer data.

This article breaks down a Kaigi on Rails 2025 talk proposing a permission-centric architecture that scales with real SaaS systems — combining RBAC + ABAC and explicit rules instead of implicit roles.

Read 👇
https://rubystacknews.com/2026/02/17/stop-checking-admin-designing-authorization-that-wont-become-technical-debt-kaigi-on-rails-2025/

#Ruby #Rails #Authorization #Security #SaaS #WebDev #KaigiOnRails

#ruby #rails #authorization #security #saas #webdev

Giménez Silva Germán Alberto @[email protected] · 2026-02-12 · 12:56 UTC

When introducing parallelism in Rails,
the real danger isn’t threads.

It’s connection pool exhaustion.

Based on a Kaigi on Rails 2025 talk by @katakyo, I wrote a breakdown of how to safely scale parallel workloads in production Rails systems.

Full article here:

https://rubystacknews.com/2026/02/12/designing-safe-parallelism-in-rails/

#Ruby #Rails #Sidekiq #Performance #AWS #Scaling

#ruby #rails #sidekiq #performance #aws #scaling

Giménez Silva Germán Alberto @[email protected] · 2026-02-11 · 13:14 UTC

At Kaigi on Rails 2025, Rails Committer Yasuo Honda walked through:

• Protocol 3.2 & extended cancel keys
• Why pg ≥ 1.6 matters
• UNLOGGED partition removal
• pg_stat_statements improvements
• Virtual generated columns (now default in PG18)
• Rails 8.1 adapter support

This is a great example of ecosystem coordination:
PostgreSQL core → pg gem → Rails adapter → production apps.

Full technical breakdown 👇

https://rubystacknews.com/2026/02/11/rails-meets-postgresql-18/

#Rails #PostgreSQL #Ruby #ActiveRecord #OpenSource

#rails #postgresql #ruby #activerecord #opensource

Giménez Silva Germán Alberto @[email protected] · 2026-02-10 · 15:22 UTC

Maps don’t always need to be interactive.

With libgd-gis v0.4.1, maps can now include built-in legends, rendered directly into the image — fully server-side in Ruby.

This makes maps self-explanatory artifacts:
• no frontend
• no JavaScript
• no screenshots
• style-driven rendering
• optional post-processing via map.image

https://rubystacknews.com/2026/02/10/when-maps-explain-themselves-legends-style-and-finished-images-in-ruby/

#Ruby #GIS #OpenSource #ImageProcessing #libgd

#ruby #gis #opensource #imageprocessing #libgd