CanIUse
Invaluable tool for keeping track on what technologies are currently implemented in browsers.
CSS stats
CSS Stats provides analytics and visualizations for your stylesheets. This information can be used to improve consistency in your design, track performance of your app, and diagnose complex areas before it snowballs out of control.
Werf
GitOps CLI tool. Consistent delivery tool. Git as a single source of truth. Build, deploy to Kubernetes, stay in sync.