Recently I launched the Tools section on CraftQuest, and one of those tools is the Smoke Test Suite.
It's a complete, plug-and-play Playwright smoke test suite for Craft CMS. Point it at your site, edit one config file, wire it to your deployment tool, and get pinged in Slack the moment something breaks.
The suite has seven checks: availability, template rendering, JS console errors, broken links, SEO basics, form submissions, and CP login check.
It answers the only question that matter right after a fresh deploy: is the site up, rendering, and are the most important pages working?
Two years ago I showed you a clever trick: pulling luma values from Craft's color field and running them through calc() to force legible text with proper contrast in some of the UI design here on CraftQuest.
You can delete all of that now. CSS has contrast-color(), and it's one line. This follow-up video replaces the old approach on the same real code as the original.