What I am missing most of all right now is a way to broadcast a zeroconf/bonjour hostname to the local network similar to Avahi. Everything I have found so far that can do this tends to be a bag of parts providing libraries for app developers to add this feature to their own code.
My use case is that I want to fire up a service under termux, for example, and tell a neighbour on the WiFi to go to
mylineageosphone.local to connect to the data or service I provide there. I run gitea under termux on my phone (spinning it up when I want to use it), and it would be great if I didn’t have to keep editing my git remotes every time I hit a new DHCP lease on a café network or something.