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Articles and publications tagged Ruby across the Atmosphere.

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Articles

Publications

brennan.daySep 28, 2026

Kindness as First-class Citizen in Programming

The world needs more intentional kindness. There's a manufactured backlash against empathy from Elon Musk to Gad Saad's 'suicidal empathy.' Kindness already operates as a design constraint: the IndieWeb's eleventh principle, Elm's code of conduct, Recurse Center's social rules, Ubuntu's 'I am because we are,' Audre Lorde's anger as care, and Coraline Ada Ehmke's Contributor Covenant. We must reclaim Ruby's MINASWAN culture from the Rails era, and I announce LearnWebDev.fyi, my restoration of Flatiron's retired Learn.co curriculum with 1,672 free lessons.

personal essaySocial Commentary

Kuba's Lab NotesAug 17, 2026

Making Ruby go brrrr (with Codex)

Skyfall optimizations and a new gem

rubyperformance

Kuba's Lab NotesJul 30, 2026

RatProto for AtProto 🐀

Ruby CLI for digging inside some atproto things

Ewan’s Blog

Ewan’s BlogJul 18, 2026

I Spent an Hour Learning Who DHH Is. That Was Enough.

I am disgusted with this man.

brennan.dayJul 2, 2026

Fixing Work Imports from Other OTW-based Archives

By default, the OTWArchive codebase blocks all imports from AO3, a problem for every fork. My fix includes removing AO3 from PERMITTED_HOSTS, writing a custom Ruby story parser that extracts only the story content from AO3 work pages, and extending the same parser to support imports from other OTWA-based archives!

technicaltutorial

vivshaw's webbed sight

vivshaw's webbed sightFeb 24, 2026

Stress testing Claude's language skills

Polyglot or poly-not?

Andrew NesbittDec 28, 2025

The Compact Index: How Bundler Scales Dependency Resolution

The append-only index format that saved RubyGems.org, inspired Cargo's sparse index, and could speed up npm and PyPI too.

package-managersruby

Andrew NesbittDec 25, 2025

Cursed Bundler: Using go get to install Ruby Gems

Go's module system accidentally created a universal, content-addressed, transparency-logged package CDN. You could abuse this for any language.

package-managersgo

Andrew NesbittDec 21, 2025

Jekyll Stats Plugin

A Jekyll plugin that adds a stats command to show word counts, reading time, posting frequency, and tag distributions.

open-sourceruby

Andrew NesbittDec 14, 2025

Supply Chain Security Tools for Ruby

Ruby implementations of PURL, VERS, SBOM, SWHID, and SARIF specs.

MacKuba blogOct 15, 2025

How I ran one Ruby app on three SQL databases for six months

Since June 2023, I’ve been running a service written in Ruby (Sinatra) that provides several Bluesky custom feeds (initially built with a feed for the iOS/Mac developers community in mind, later expanded to many other feeds). If you don’t know much about Bluesky feeds, you make them by basically running a server which somehow collects and picks existing posts from Bluesky using some kind of algorithm (chronological or by popularity, based on keyword matching, personal likes, whatever you want), and then exposes a specific API endpoint. The Bluesky AppView (API server) then calls your service passing some request parameters, and your service responds with a list of URIs of posts (which the API server then turns into full post JSON and returns to the client app). This lets you share such feed with anyone on the platform, so they can add it to their app and use it like any built-in feed. (If you’re interested, check out my example feed service project.) In order to provide such service, in practice you need to connect to the Bluesky “firehose” streaming API which sends you all posts made by anyone on the network, and then save either those which are needed for your algorithm, or save all of them and filter later. I chose the latter, since that lets me retry the matching at any time after I modify the keyword lists and see what would be added after that change (and also some of the feeds I now run require having all posts). I also use the same database/service to generate e.g. the total daily/weekly stats here. All posts made on Bluesky is much less than all posts on Twitter, of course, but it’s still a lot of posts. At the moment (October 2025), there are around 3.5M posts made on average every day; at the last “all time high” in November 2024, it was around 7.5M per day. A post is up to 300 characters of (Unicode) text, but since I also store the other metadata that’s in the record JSON, like timestamp, reply/quote references, embeds like images and link cards, language tags etc., it adds up to a bit less than 1 KB of storage per post on average. In addition to that, the firehose stream (if you use the original CBOR stream from a relay, not Jetstream, which is a JSON-serving proxy) includes a lot of overhead data that you don’t need in a service like that, plus all the other types of events like handle changes, likes, follows, blocks, reposts, and so on. The total input traffic is around 15 Mbit/s average right now in October 2025 (or around 5 TB per month), and it used to be around twice that for a moment last year. (Jetstream sends around an order of magnitude less, especially if you ask it to send filtered data, e.g. only the posts.) On disk, the millions of posts per day add up to a few gigabytes per day. Since I was running this on a VPS with a 256 GB disk (Netcup, RS 1000 – reflink), I have a cron job set up to regularly prune all older posts and keep only e.g. last 40 days worth of them (since I don’t really need to keep the older posts …

Jamie Schembri

Jamie SchembriSep 15, 2025

New Experiences at Friendly.rb

A conference can be so much more than just its talks. These were my experiences at Friendly.rb, as a once-skeptic.

enumerator.dev

enumerator.devSep 9, 2025

Naming Things for What They Do

I just saw the Rails World announcement that flavorjones is working on ActiveRecord::Tenanted and all I can say is, “What a reasonable name!”

enumerator.dev

enumerator.devSep 9, 2025

Naming Things for What They Do

I just saw the Rails World announcement that flavorjones is working on ActiveRecord::Tenanted and all I can say is, “What a reasonable name!”

enumerator.dev

enumerator.devJul 21, 2025

Use Precomputed Hashes Instead of BCrypt in Test

I asked Claude to find the slowest test file again after my success [earlier today](/speeding-up-willow-camp-s-post_test-rb-by-99) and Claude found a call to BCrypt in my fixtures that was gobbling up time.

willow-campperformance

enumerator.dev

enumerator.devJul 21, 2025

Use Precomputed Hashes Instead of BCrypt in Test

I asked Claude to find the slowest test file again after my success [earlier today](/speeding-up-willow-camp-s-post_test-rb-by-99) and Claude found a call to BCrypt in my fixtures that was gobbling up time.

willow-campperformance

enumerator.dev

enumerator.devJul 20, 2025

Speeding Up willow.camp's post_test.rb by 99%

I just asked Claude to speed up the slowest test file in willow.camp. post_test.rb was taking over 1 second to execute. For a tiny Ruby app, that's a long time.

willow-campperformance

enumerator.dev

enumerator.devJul 20, 2025

Speeding Up willow.camp's post_test.rb by 99%

I just asked Claude to speed up the slowest test file in willow.camp. post_test.rb was taking over 1 second to execute. For a tiny Ruby app, that's a long time.

willow-campperformance

enumerator.dev

enumerator.devJun 5, 2025

How Rack::Timeout Keeps Your App Alive

Rack::Timeout is a library that monitors hanging processes in a Ruby app and kills them if they take too long. The default configuration in Rack::Timeout is to kill processes that are not responding in 15 seconds.

performanceruby

enumerator.dev

enumerator.devJun 5, 2025

How Rack::Timeout Keeps Your App Alive

Rack::Timeout is a library that monitors hanging processes in a Ruby app and kills them if they take too long. The default configuration in Rack::Timeout is to kill processes that are not responding in 15 seconds.

performanceruby

Jamie Schembri

Jamie SchembriAug 12, 2024

Remove the 'Choose Your Search Engine' Dialog in Capybara

An annoyance I came across when running tests in my app, leading to poor visibility.

Devtools FM

Devtools FMJul 15, 2024

Robby Russell - oh my zsh, Planet Argon

Robby Russell shares the origin story of Oh My ZSH and how Planet Argon evolved alongside the terminal customization revolution he sparked.

cbennell.com

cbennell.comMay 5, 2024

Using Ruby Structs to Model API Responses

Here's a technique I use to model API responses in a simple class. This provides nice ergonomics with minimal boilerplate.

cbennell.com

cbennell.comMay 1, 2024

Parameterized Modules in Ruby

Ruby lets you use `[]` for more than arrays—and that opens the door to clever tricks like parameterized modules.