Speaking of bad UIs, volià: my first attempt at building something with Gio:

A screenshot of a window with the title Gio, a connection header, a left pane showing a NATS message to send, and a right pane showing messages that can be received

It doesn’t do anything now, but I’m hoping this will be something I can use to test NATS. I will say Gio shows promise. Not a huge range of controls to use, but having everything run in a single memory address is nice.