When I spin up an embedded computer, I often have the problem of trying to figure out which IP address it got. This is especially problematic when it’s not generally connected to keyboard/mouse. (I generally have a screen, though, because I like seeing what’s going on.)
The best solution I’ve found is to start up a program that prints the address of the network interface when it starts up. The latest iteration of this simple program also has some graphs for load / RAM used / network use / CPU temperature. You can check it out and build it here:
It’s built in C++ using FLTK 1.3, to make the footprint smaller than a full GTK or Python or Electron application would have, and thus it also starts up quite quickly.