Rogue likes usually run on a toaster. What’re people’s favorites?
I have a huge soft spot for Crawl: Stone Soup. Runs in a browser, or probably even lower requirements if you download it. The game’s design goals want to minimize tedium and gotchas, so it’s pretty respectful of your time. Auto-explore and auto-travel are real nice. So is the global search for when you’re like “is there anything in this run with resist poison?”
I’ve played a little nethack, adom, and angband, but I always go back to crawl.
Zomnibus covers a wide variety of minor QoL mods from what I remember. Configurable auto-rest and -explore is a godsend; you can set them to request 1 FPS when in action which drastically speeds the game up while also demanding less of your system.