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RoRvsWild @rorvswild.com · 14/05/2026

Even small optimizations are rewarding.

RoRvsWild @rorvswild.com · 23/04/2026

Added a cute tiny @genevarb.bsky.social stamp to the #Ruby passport. Thank you @adrianthedev.com & @avohq.io team for the passports and goodies for the meetup. Everybody was happy and couldn't stop playing with your quite satisfying fidget toy ❤️

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RoRvsWild @rorvswild.com · 13/04/2026

📱 RoRvsWild Android 1.0 🎉 play.google.com/store/apps/d...

RoRvsWild Android App on Google Play Store.

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RoRvsWild @rorvswild.com · 03/04/2026

🆕 Generate Markdown for requests and jobs pages. ✨ Paste it into an issue or your favorite LLM…

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RoRvsWild @rorvswild.com · 19/03/2026

Yesterday at @genevarb.bsky.social we had a presentation of render-later by Adrien Jarthon. No needs for PJAX, Turbo or XHR and less network round trips. He also wrote a blog post updown.io/blog/asynchr...

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RoRvsWild @rorvswild.com · 09/03/2026

Rack provides Rack::Deflater (to compress response), but not Rack::Inflater (to decompress requests). I just wrote a simple one.

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RoRvsWild @rorvswild.com · 12/12/2025

🪩 Friday deploy! - Server alerts: get notified when CPU, RAM, or disk is above your specified threshold for some time (80% for 15 min. by default). - Discord webhook notifications.

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RoRvsWild @rorvswild.com · 29/10/2025

🤔 Exceptions in Markdown (add .md to URLs). What would you do with this?

Screenshot of an exception page with a "View as Markdown" button.

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RoRvsWild @rorvswild.com · 08/10/2025

We don't need catch, throw and redo either, because unrolling loops is faster!

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RoRvsWild @rorvswild.com · 19/06/2025

This method has been entirely generated by AI. If you care about performances, you still have a job :-)

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RoRvsWild @rorvswild.com · 04/06/2025

Read The Nice Manual! In the happy world of #Ruby, we don’t #RTFM, we #RTNM New documentation website for Ruby, Rails, and a bunch of selected gems: rubyrubyrubyruby.dev Short intro post: www.rorvswild.com/blog/2025/re... Contribute: github.com/BaseSecrete/... Wdyt?

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RoRvsWild @rorvswild.com · 01/05/2025

Here's my recipe to increase code coverage: 1. Set minimum code coverage with current value 📏 2. You're not allowed to decrease it ⛔️ 3. Every week check the value and increase the minimum accordingly 🔄 4. Code coverage will slowly but magically increase ⬆️

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RoRvsWild @rorvswild.com · 18/03/2025

Maybe this, to avoid locking in the happy path.

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RoRvsWild @rorvswild.com · 07/03/2025

One more good reason to come at Geneva.rb on the 12 march: after the talk we will eat a fondue 🫕 at Bains des Pâquis. Even if you far, or abroad, it worth it 😋

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RoRvsWild @rorvswild.com · 29/11/2024

Avoid returning records from a model's method Because a SQL query is triggered on each call. Memoizing the result is not necessarily better since it won't be uncached when reload is called. Instead, switch that method to a relation.

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RoRvsWild @rorvswild.com · 25/11/2024

One step further It works fine with a few thousand. But that would probably eat too much memory if you're loading a lot of ActiveRecord instances. The trick is to load IDs only if you do not need to access any attributes or methods.

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RoRvsWild @rorvswild.com · 25/11/2024

Enqueuing a lot a jobs really fast Enqueuing via ActiveJob::Base#perform_later triggers callbacks and generates one round-trip for each job. Bulk enqueuing skips callbacks and enqueues all jobs in one step.

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RoRvsWild @rorvswild.com · 15/11/2024

Stop waiting for Redis responses with pipelining Pipelining sends a bunch of commands without waiting for each individually. Instead of having N round-trips, there is only one, thus code is less idle. Of course, that's not possible when you need the result of the previous command for the next one.

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RoRvsWild @rorvswild.com · 04/11/2024

Importing a lot of records and their associations quickly ActiveRecord's method insert_all is fast but limited when dealing with associations. Fortunately the gem activerecord-import has come to the rescue. It triggers a single query per table to avoid round-trips with the database.

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