endverbraucher

Or you can use open-source DBFlux https://dbflux.dev/

Also consider "Atkinson Hyperlegible Pro" an updated and slightly extendend Version: https://github.com/tryoxiss/atkinson-hyperlegible-pro

Look at this peace from Jeff Sutherland: https://qr.ae/pv4DI3. There is a study out there that shows, that teams working with estimates are less productive than teams working with no estimates. The key is: "Best teams have small stories and do no tasking." What I'll try next: only estimate with t-shirt sizes S and L. And everytime it's an L trying to slice it smaller.