This portfolio
The site you are reading. Every change is tested in four browsers on a preview deploy before it can reach production.
Every push to main builds the site once and deploys it to a Cloudflare Pages preview. The full Playwright suite then runs against that preview in Chromium, Firefox, WebKit and a mobile viewport, including accessibility scans and screenshot comparisons. Only if all of it passes is the same build promoted to production, where a smaller smoke suite checks the live site.