DEV Community: Germán Alberto Gimenez Silva

Generating Charts in Pure Ruby Without JavaScript

Germán Alberto Gimenez Silva — Fri, 08 May 2026 02:39:06 +0000

May 7, 2026

Modern chart rendering usually assumes a browser, a JavaScript runtime, or a frontend stack.

But many Ruby applications do not actually need interactive dashboards.

They need deterministic image generation.

Things like:

scheduled reports
PDF exports
transactional emails
admin dashboards
analytics snapshots
CI metrics
server-side rendering pipelines

That was the motivation behind building RubyCharts: a lightweight chart rendering library written for backend-oriented Ruby workflows.

The project is still under active development, but the core idea is already working: generate PNG charts directly from Ruby using native rendering primitives.

The rendering backend is powered by ruby-libgd.

Built for Ruby on Rails

Build Maps Without

Google APIs

Generate beautiful production-ready maps directly from your Rails backend. Fast rendering, zero external dependencies, full control.

View Live Demo →Read Docs

✓ No API fees✓ Self-hosted✓ Rails Native✓ Fast Rendering

Why developers switch

Replace expensive map stacks.

Stop relying on third-party map billing and bloated JS libraries. Render static or dynamic maps directly in Ruby.

Try It Now

👉 Read the full article.

Generating Charts in Pure Ruby Without JavaScript – Linking Ruby knowledge from the most remote places in the world.

May 7, 2026 Modern chart rendering usually assumes a browser, a JavaScript runtime, or a frontend stack. But many Ruby applications do not actually need interactive dashboards. They need determinis…

rubystacknews.com

Why Ruby’s Hash Pattern Parser Update Matters for Your Code

Germán Alberto Gimenez Silva — Thu, 07 May 2026 02:08:24 +0000

Why Ruby’s Hash Pattern Parser Update Matters for Your Code

May 6, 2026

Reference: Ruby Parser開発日誌 – Hash pattern対応 (Day 42)

Built for Ruby on Rails

Build Maps Without

Google APIs

Generate beautiful production-ready maps directly from your Rails backend. Fast rendering, zero external dependencies, full control.

View Live Demo →Read Docs

✓ No API fees✓ Self-hosted✓ Rails Native✓ Fast Rendering

Why developers switch

Replace expensive map stacks.

Stop relying on third-party map billing and bloated JS libraries. Render static or dynamic maps directly in Ruby.

Try It Now

Ruby’s pattern matching feature has evolved significantly since its introduction in Ruby 2.7. A recent development in the Ruby parser implementation (updating how Hash patterns are compiled) represents important infrastructure work that will benefit all Ruby developers, even if you don’t think about pattern matching every day.

👉 Read the full article.

Why Ruby’s Hash Pattern Parser Update Matters for Your Code – Linking Ruby knowledge from the most remote places in the world.

Why Ruby’s Hash Pattern Parser Update Matters for Your Code May 6, 2026 Reference: Ruby Parser開発日誌 – Hash pattern対応 (Day 42) Built for Ruby on Rails Build Maps WithoutGoogle APIs Genera…

rubystacknews.com

Reference: かねこにっき – Ruby Parser開発日誌 (24-42) – Hash pattern対応

Tags: #Ruby #Parser #PatternMatching #RubyInternals #LanguageImplementation

Do you need to build a State Machine at least once in your career?

Germán Alberto Gimenez Silva — Wed, 06 May 2026 02:09:34 +0000

Do you need to build a State Machine at least once in your career?

May 5, 2026

Probably not.

Built for Ruby on Rails

Build Maps Without

Google APIs

Generate beautiful production-ready maps directly from your Rails backend. Fast rendering, zero external dependencies, full control.

View Live Demo →Read Docs

✓ No API fees✓ Self-hosted✓ Rails Native✓ Fast Rendering

👉 Read the full article.

Do you need to build a State Machine at least once in your career? – Linking Ruby knowledge from the most remote places in the world.

Do you need to build a State Machine at least once in your career? May 5, 2026 Probably not. Built for Ruby on Rails Build Maps WithoutGoogle APIs Generate beautiful production-ready maps directly …

rubystacknews.com

What RubyGems Stats Actually Reveal About the Ecosystem

Germán Alberto Gimenez Silva — Tue, 05 May 2026 02:21:48 +0000

What RubyGems Stats Actually Reveal About the Ecosystem

May 4, 2026

Lately I’ve been checking RubyGems more often.

Part of that comes from having a couple of gems I care about, but also because it’s one of the few places where you can observe the Ruby ecosystem as a system, not just as isolated projects.

Today I stumbled into the stats section and it’s more interesting than it looks at first glance.

A quick look at the numbers

~192,000 gems published
~242,000 users
248+ billion downloads

At face value, that’s just scale.

👉 Read the full article.

What RubyGems Stats Actually Reveal About the Ecosystem – Linking Ruby knowledge from the most remote places in the world.

What RubyGems Stats Actually Reveal About the Ecosystem May 4, 2026 Built for Ruby on Rails Build Maps WithoutGoogle APIs Generate beautiful production-ready maps directly from your Rails backend. …

rubystacknews.com

When your Rails app is secure… but your kernel isn’t

Germán Alberto Gimenez Silva — Mon, 04 May 2026 00:21:44 +0000

When your Rails app is secure… but your kernel isn’t

May 3, 2026

A new Linux kernel vulnerability CVE-2026-31431 , better known as Copy Fail is a reminder of something backend engineers tend to underweight:

your application security model is only as strong as the system it runs on.

This isn’t a remote exploit. It’s a local privilege escalation (LPE). At first glance, that sounds less urgent until you remember how modern systems actually work:

CI/CD pipelines
Containers with shared kernels
Third-party agents running on hosts
Developers with partial access

All of those are footholds.

Copy Fail turns any of them into root access with high reliability. No race conditions. No fragile timing. No exotic setup.

That changes the threat model.

👉 Read the full article.

When your Rails app is secure… but your kernel isn’t – Linking Ruby knowledge from the most remote places in the world.

When your Rails app is secure… but your kernel isn’t May 3, 2026 Built for Ruby on Rails Build Maps WithoutGoogle APIs Generate beautiful production-ready maps directly from your Rails backend. Fas…

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Opal: Running Ruby in the JavaScript Runtime (Without Losing Your Mind)

Germán Alberto Gimenez Silva — Thu, 30 Apr 2026 02:28:38 +0000

Opal: Running Ruby in the JavaScript Runtime (Without Losing Your Mind)

April 29, 2026

Ruby has always been a server-first language. But what if you could take Ruby beyond MRI and run it directly in the browser, or even on the edge?

That’s exactly what Opal enables.

Opal is not just a transpiler. It’s a full Ruby execution environment implemented in JavaScript, capable of compiling Ruby code into JS and running it with a custom runtime that emulates Ruby’s object model, core classes, and method dispatch.

This opens the door to a very different way of thinking about Ruby applications.

👉 Read the full article.

When your Rails app is secure… but your kernel isn’t – Linking Ruby knowledge from the most remote places in the world.

rubystacknews.com

Just added a new MapView banner to my latest article on RubyStackNews 👇

Germán Alberto Gimenez Silva — Wed, 29 Apr 2026 02:29:55 +0000

Generate maps from Rails. No API fees. Full control.
Take a look:

mapview.rubystacknews.com

ruby #rubyonrails #indiehackers

RubyKaigi 2026: Final Day Reflections with Matz’s Keynote

Germán Alberto Gimenez Silva — Fri, 24 Apr 2026 02:32:23 +0000

Read the full article.

RubyKaigi 2026: Final Day Reflections with Matz’s Keynote – Linking Ruby knowledge from the most remote places in the world.

April 23, 2026 Scan to try 🎯 Live Demo Available Introducing MapView Render beautiful, production-ready maps directly from your Ruby backend. No external APIs. No dependencies. Just pure speed and …

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MapView Flyers are at RubyKaigi 2026 – Here’s the Must-Watch Talk Schedule

Germán Alberto Gimenez Silva — Thu, 23 Apr 2026 02:11:40 +0000

👉 Read the full article.

MapView Flyers are at RubyKaigi 2026 – Here’s the Must-Watch Talk Schedule – Linking Ruby knowledge from the most remote places in the world.

MapView Flyers are at RubyKaigi 2026 – Here’s the Must-Watch Talk Schedule April 22, 2026 Scan to try 🎯 Live Demo Available Introducing MapView Render beautiful, production-ready maps directl…

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Ruby 4.0.3 Released: Critical ERB Deserialization Fix

Germán Alberto Gimenez Silva — Wed, 22 Apr 2026 01:56:57 +0000

Ruby 4.0.3 Released: Critical ERB Deserialization Fix

April 21, 2026

Introducing

MapView

Render beautiful, production-ready maps directly from your Ruby backend. No external APIs. No dependencies. Just pure speed and control.

✓
Zero external dependencies

✓
Lightning-fast rendering

✓
Production-ready & battle-tested

Try the Live Demo →Read Docs

April 21, 2026 Ruby 4.0.3 has been released with a critical security fix for a deserialization vulnerability in ERB that could lead to arbitrary code execution.

The Issue (CVE-2026-41316)

A flaw in ERB allows code execution when objects are reconstructed via Marshal.load on untrusted data.

ERB includes an @_init guard to prevent this but three methods bypass it:

ERB#def_method
ERB#def_module
ERB#def_class

These can evaluate template code without the guard, making them usable in deserialization attack chains.

Who Is Affected?

Any application that:

uses Marshal.load on untrusted data
loads both ERB and ActiveSupport

👉 Read the full article.

Ruby 4.0.3 Released: Critical ERB Deserialization Fix – Linking Ruby knowledge from the most remote places in the world.

Ruby 4.0.3 Released: Critical ERB Deserialization Fix April 21, 2026 Scan to try 🎯 Live Demo Available Introducing MapView Render beautiful, production-ready maps directly from your Ruby backend. N…

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Generating thousands of maps per minute in Ruby

Germán Alberto Gimenez Silva — Tue, 21 Apr 2026 02:33:24 +0000

April 20, 2026

👉 Read the full article.

Generating thousands of maps per minute in Ruby – Linking Ruby knowledge from the most remote places in the world.

April 20, 2026 Scan to try 🎯 Live Demo Available Introducing MapView Render beautiful, production-ready maps directly from your Ruby backend. No external APIs. No dependencies. Just pure speed and …

rubystacknews.com

Check the project

GitHub: https://github.com/ggerman/ruby-libgd

GitHub: https://github.com/ggerman/libgd-gis

RubyKaigi 2026: A Reminder of What Innovation Actually Looks Like

Germán Alberto Gimenez Silva — Thu, 16 Apr 2026 02:26:01 +0000

RubyKaigi 2026: A Reminder of What Innovation Actually Looks Like

April 15, 2026

👉 Read the full article.

RubyKaigi 2026: A Reminder of What Innovation Actually Looks Like – Linking Ruby knowledge from the most remote places in the world.

RubyKaigi 2026: A Reminder of What Innovation Actually Looks Like April 15, 2026 Scan to try 🎯 Live Demo Available Introducing MapView Render beautiful, production-ready maps directly from your Rub…

rubystacknews.com