Nothing wrong with simple...
View attachment 3017496
I would say if you are going to use one pedal to go direct, it's the OCSD.
With the right cabling and a clip on tuner, I could conceivably use only the OCSD. Use the OCSD DI (as I currently do) to the mixer,
send my IEM feed to the aux in on the OCSD
plug my IEM's into the headphone out (with volume control) of the OCSD
use a clip on tuner
Thing is I like the quick tap and mute/tune of a tuner pedal so I'll probably just keep using my Nano board. It's not that big a deal.