Codeminer42 Blog
blog.codeminer42.com · Company blog · on HN since 2016
Codeminer42, a Brazilian software company, writes about Ruby, Rails, React, front-end patterns, and other engineering topics.
What HN saysHN links it for its Rails and React posts; one commenter singles out a post on working with the Lean 4 language as fun.
16HN people shared it
2linked it in comments
41stories submitted
471story points
8 months agolast shared
2016people per year2026
Most-shared posts
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- 2React 19 almost made the internet slower1 people · 202 points · first shared 2024 · 284 comments on HN
- 3Git Workflow Basics1 people · 187 points · first shared 2016 · 75 comments on HN
- 4Ruby on Rails: The Open-Source Blueprint1 people · 20 points · first shared 2025 · 14 comments on HN
- 5What's New in Ruby 3.41 people · 6 points · first shared 2024 · 1 comments on HN
- 6What's New in Ruby 4.01 people · 3 points · first shared 2025 · discussion on HN
- 7Everything you need to know about React concurrent with a little bit of Suspense1 people · 3 points · first shared 2022 · discussion on HN
- 8Common patterns in scalable front end applications1 people · 3 points · first shared 2018 · discussion on HN
- 9Crystal by Numbers: Kemal vs. Sinatra / Rails1 people · 3 points · first shared 2017 · 1 comments on HN
- 10Good communication in software development teams1 people · 2 points · first shared 2016 · discussion on HN
- 11Working Effectively with a Headless CMS in React1 people · 2 points · first shared 2024 · discussion on HN
- 12Third-party cookies are phasing out, now what?1 people · 2 points · first shared 2024 · discussion on HN
- 13Node.js and Good Practices – Separation of concerns doesn't need to be boring1 people · 2 points · first shared 2017 · discussion on HN
- 14Git Basics: Adding more changes to your last commit1 people · 2 points · first shared 2016 · discussion on HN
- 15Five core concepts that explain how AI coding agents work1 people · 2 points · first shared 2026 · discussion on HN
What HN people wrote when they linked it
b9r5 · 2023-10-28
I thought this post was fun:
https://blog.codeminer42.com/overcoming-challenges-and-crafting-in-the…
alwillis · 2023-01-17
> Should I group by behaviour type — put all the margins and padding in one place, all the font stuff in another? How does that jive with grouping in a different dimension: by element hierarchy. All the buttons stuff in one file. All the headings stuff in another.
I've been where you are.
All I can say is Inverted Triangle CSS (ITCSS) [1] solves the issues you're talking about. It's so obvious once you get it—it's one of those "why didn't I think of this" kind of thing. You write your code in specificity order. It sounds odd at first but it makes total sense and eliminates so many of the "issues" people complain about. It makes the cascade your friend and not your foe.
[1]: https://blog.codeminer42.com/how-to-organize-your-styles-with-itcss-37…