Home Assistant is an amazing project. I use it a ton, and I deeply appreciate what they've done.

HOWEVER, Lovelace specifically is pretty terrible. Having used Grafana extensively, trying to use Lovelace to arrange a UI is so far backwards that it's constantly grating to try to create or modify dashboards. I really wish there was a way to use Grafana as the UI and embed cards as panels. The ability to drag and drop, resize, and move UI elements would be a godsend, but instead it feels like I'm writing Tk-style UI arrangement in yaml, and it's awful, so I do it as infrequently as possible.