~rubyweekly | Bookmarks (183)

Safely 0.5: Rescue and Report Exceptions in Non-Critical Code — The idea here is that while you may want to know about failures and exceptions, they don’t necessarily need to result in crashing out.

Retest 2.3: A Simple Command Line Tool to Watch File Changes — Retest is made to be easy to install and work on any Ruby project to make your testing workflow more efficient.

🧠 Build Intelligent Applications with Rails — Learn about the strengths of Ruby and Rails in the AI era and why we choose them for AI applications development.

🤖 TinyMCP: Make Local MCP Tools in Ruby and Easily Serve Them — On the AI in Ruby front, create Model Context Protocol servers quickly with this tiny library.

▶  The RubyKaigi 2025 YouTube Playlist — Ruby's 'home' conference, RubyKaigi, is an important entry in the Ruby event calendar. 2025's event took place last month featuring a keynote from Matz and talks from Tenderlove, Koichi Sasada, and many others. There are 57 talks (in English and Japanese) so you’re sure to find something interesting, but I'll link a few highlights below.

Don’t Hire FastRuby to Upgrade Rails. Just DIY it 🚀 — What do next_rails, skunk, and RailsBump.org have in common? All are open source tools maintained by the FastRuby team. Ready to ship your next Rails upgrade? Check out 8 tools we use in our fixed-cost, monthly maintenance services.

A Series on Enumerable’s Loveliness — A celebration of the lovely expressiveness of Ruby’s Enumerable methods for solving problems. He then ran two rounds of benchmarks, concluding that writing expressive, readable Ruby first is a good idea, but it never hurts to benchmark and tune afterwards.

Concurrent Web Crawling in Ruby with Async — Even if you don’t need to crawl anything, more Async demos in the wild is a good thing.

Custom Domains and SSL in Rails Development — Using custom domains and SSL in local development not only looks nice, but can make a variety of ‘secure context’ only browser features work too.

CodeRabbit Brings AI Code Reviews to VS Code, Cursor & Windsurf — Get line-by-line reviews, one-click fixes & codebase-aware feedback - all free in your IDE. Seamlessly integrates with git workflows. Install the extension & start reviewing!

🤖 Anthropic SDK for Ruby v1.0 — An official Ruby library for Anthropic’s various APIs to work with its popular Claude LLMs.

Fast Allocations in Ruby 3.5 — Tenderlove never rests! His latest post shows his work in Ruby 3.5 for slashing object‐allocation costs (up to 6× faster for keyword-heavy constructors). He walks us through the techniques behind this win and leaves us buzzing for 3.5’s eventual release later this year.

Don’t Hire FastRuby to Upgrade Rails. Just DIY It 🚀 — What do next_rails, skunk, and RailsBump.org have in common? They're all open-source tools maintained by the FastRuby team to help you ship your next Rails or Ruby upgrade. Check out 8 tools we use in real client work (free and ready to use).

Ruby Namespaces 101 — Last week we featured a proposal to introduce virtual top-level namespaces to Ruby, and Xavier Noria has put together a more accessible digest of what they are, how they work, and how you can actually give them a try for yourself in an early form.

It’s TRUE, SQL Supports Booleans — A tip for doing things in Active Record in a way that’ll work across database implementations.

Managing Postgres Table Partitioning in Ruby — If your app uses a lot of data, Postgres’s table partitioning can offer a simple, transparent-to-Rails way to avoid many associated large data performance issues. Honeybadger has also created a gem to make it even easier to manage.

Don’t Measure What's Easy. Measure What Matters — Imagine Lord Business stops obsessing over story points. Data informs decisions—instead of controlling people.

OSV: A High Performance CSV Parsing Library — OSV brings a popular Rust-powered CSV parser to the Ruby world and boasts significantly faster performer than Ruby’s own csv. It’s highly configurable, supports numerous input sources (file paths, gzipped files, IO objects, strings), hash and array output formats, whitespace trimming options, and more.

🧠 Smart Augmentation: It's Not Always About Scaling the Team — How we helped a client achieve a shorter cycle time, lower infra costs and an improved communication.

A Proposal for Defining Virtual Top Level Namespaces — The idea is that defined namespaces can load libraries and dependencies and keep them separate from other namespaces. Numerous benefits are promised like avoiding issues with globally shared objects, name conflicts, or version conflicts. There’s an interesting blend of support and criticism in the responses.

Semian: Added Resiliency When Calling External Services — A library from Shopify we first linked exactly eight years ago! Semian intercepts resource access by several different libraries (e.g. mysal2, redis, Net::HTTP) and ‘fails fast’ when said external resources are slow or unresponsive.

🤖 Building a 'Coding Agent' in 94 Lines of Ruby — Inspired by a Go article that used 100 lines, Radan shows how Ruby can be used to build a (somewhat) functional coding agent in even fewer lines of code. It leans a lot on RubyLLM, but this is still very cool.

Ruby 3.4.4 Released — The latest minor release includes a fix for a YJIT bug as well as a build issue on Windows. Due to the importance of these fixes, it has been released ahead of schedule, meaning Ruby 3.4.5 is now expected in July.

Rails Upgrades: The Good Parts — Trust the agency behind the Standard Ruby tools used by 20,000+ projects. Complex upgrades for GitHub, Gusto, and Zendesk. We set you up for independent, painless, and iterative future upgrades. Flexible contracts, no retainers, no subscriptions.