I’d tried to find another topic about Renoise on stage, but didn’t succeed.
EDIT
there it is: https://forum.renoise.com/t/the-renoise-based-liveset/17599
full of good tips.
/EDIT
well, If you start with a computer/laptop with renoise, and a midi controller you can do a lot already.
with the keys you can for instance play samples or a VSTi
you could also assign other knobs to track volume to mute unmute tracks or to the panning or maybe a filter…
very much is possible as you can see to have enough input on your performance.