slim

I think they mean Server Side Rendering (normal rails controllers/views), and Slim is just the name of the templating engine. It's a little nicer than the default ERB. https://github.com/slim-template/slim There's also SSR with react and other js frameworks, but I don't think that's what they meant.

I use something very similar on https://lunar.fyi and https://lowtechguys.com but I wouldn’t call this “simple” anymore. They use Jinja templating, I prefer Slim (https://github.com/slim-template/slim#syntax-example) which has a more Pythonic syntax (there is plim [0] in Python for that) I use Tailwind as well for terse styling and fast experimentation (allows me to write a darkMode-aware and responsive 100 line CSS in a single line with about 10 classes) For interaction I can write CoffeeScript directly in the page [1] and have it compiled by plim. I run a Caddy static server [2] and use Syncthing [3] to have every file save deployed instantly to my Hetzner server. I use entr [4] and livereloadx [5] to rebuild the pages and do hot reload on file save. All the commands are managed in a simple Makefile [6] ——— You can already see how the f

I found my foolproof HTML in slim-lang. It produces standards-compliant HTML and prevents me from writing code that is not well-formed. The above is a nice side effect of its incredibly clean and terse syntax. Now I feel cheated any time I need to write regular HTML. https://github.com/slim-template/slim/blob/master/README.md I used emmet for a while but slim improves on writing and reading code.