I came across CSS Zero recently:

https://csszero.lazaronixon.com/lookbook/pages/overview

which bills itself as an "opinionated front-end starter kit" specifically for Rails and includes Stimulus.js code for JavaScript functionality.

It seems the benefits are that it is no build (pure CSS with CSS variables) and easy to modify and extend.

It also has the additional benefit of not being based on Tailwind, unlike most of the others listed in the original post and comments here.

Yes, it's a good one. I'll include csszero in the updated version of the post.

Michel Marten’s code is some of the beautiful code I have ever had the pleasure of reading. His “less code” philosophy is almost an art form—even down to the naming of his libraries. They are all small, focused libraries dedicated to solving one particular problem. The best bit is that they are all tiny, sporting less than 500 SLOC. Browse his GitHub profile to get a taste. [1]

He is probably best known for his Ruby libraries Ohm and Cuba, but I enjoy using Syro and Mote.

[1] https://github.com/soveran

This describes the purpose of the (paid) resource available at “The Great Code Club” [1].

Marc-André Cournoyer has put together several different projects: - 2D/3D Game - Database Engine - Virtual Machine - Backend + Frontend Framework - Neural Network - Language - Server - Real-Time Web Engine

Full Disclosure: I am a happy customer of Marc Andre’s “Owning Rails” [2] workshop. No other affiliation.

[1] http://www.greatcodeclub.com [2] http://owningrails.com

Very nice! These days think of something and someone somewhere has not just thought about it already but also making money out of it :)

What’s even better is that he did in a reply to a comment by _ThePawnBreak_.

Most definitely. I’ve been cycling in the Netherlands for three months now and I've found myself instinctively opting for a quasi-circular route when going to and from a destination to ensure maximum flow via right-hand turns.

I work in an incubator/accelerator space in the UK, and there's a new team who are working on a FOSSier, more flexible e-commerce platform called Molt.in You should see if their solution fits with your desired philosophy. It's definitely hitting a pain point that a lot of developers feel when they are forced into "off-the-shelf" solutions like Shopify, that aren't quite flexible enough for their particular needs.