And how do I sleep well at night? CI/CD pipelines and automated tests of course! The first framework I used was NightwatchJS, which is built on top of Selenium. I needed a solution for cross-browser testing with Browserstack. Now that Cypress supports more browsers, it is the one I prefer for the front end. For back-end stuff, I use Jest. The CI/CD flows are set using CircleCI, but I also tried Github actions and I use the Amplify pipeline for some use cases.