I have started to look at Svelte to see what is possible. It feels like it should not be to difficult to create something easy. I will setup a Go backend to deal with API-calls and handle database/mqtt. I guess you will need a database of some kind to store the data for the dashboards.. I will try to free some time to work with this to see how complex it is. If i has a good structure and follow the openAPI for the backend it could be done as a common community project..