A small progress from me. Progress is quite good (the git repository isn't up to date with the latest changes yet). The input and menu subsystems of FS-UAE are coming along nicely, and are soon usable.
I'm also, in parallel, working on giving the Launcher an overhaul, and that's been the main focus recently. I'm attaching a screenshot of how the Launcher is currently looking, I believe that is quite representative of how FS-UAE Launcher 4.0 will look
