Out of nowhere the matrix homeserver started a rampage in the LAN.
I already have a suspicion, but to not jeopardize other services, I've decided to pull the plug for the next few hours.
I am already working on it.
Simply point your client to cat.casa and go!
Notice: If your client does not support delegation you may use matrix.cat.casa, but keep an eye out for this page and the status page if it suddenly stops working!
I am working on a new website, this one is only up because I still have to reconfigure some services.