Good question, never tried it…
So I tried it just now, and it works just like that. I opened renoise, selected “Hermod MIDI 1” as midi output, typed notes on the laptop keyboard, and hermod reacted as expected.
Just a quick test, so more hardcore use might reveal problems (but the squarp team seems to be very keen on making the hermod work with the quirkiest of hardware), but I’d say it seems like it just works…
It probably doesn’t matter in this day and age, but I’m running debian stable…