Connecting to cups.lol
Your homeserver is cups.lol. Enter that when a client asks which server to use.
Element Web
Hosted here, nothing to install.
Element
Desktop and mobile, including Element X, the newer and faster app for iOS and Android. element.io/download
Cinny
Lightweight alternative for web and desktop. cinny.in
Any Matrix client will work with this server. The ones listed are a starting point.