ok ,this is all a bit off-topic, so please feel free to skip 
@ritchie did you manage to get it to work?
@kai I’ll try to remember to add a note about the VC++ redistributables.
48khz sample rate : to be clear this is because, the headphone output is always at 48khz, and I found the down/upsampling pretty inefficient. so if you turn off the headphones its not relevant (and not relevant on the Pico)
also its a bit of a trade off, if you run lots of plugins , then EigenD will use more (~10%) CPU processing these at 48kHz, compared to 44kHz (assuming same buffer sizes), so at some point the balance tips over 
EigenCommander - yeah, to be clear, EigenD didnt break anything,
on the Mac , Apple released an macOS update which broke one of the python UI libraries it uses.
unfortunately, the fix is to use a newer version, but the issue is to do this we need to go to a much newer version of python and the lib, which breaks other (UI related) things… and Ive not been able to figure about exactly whats needed… (despite spending quite a bit of time debugging it)
so until Microsoft break it, it should be working fine on Windows.
I also started exploring creating a new C++ version of EigenBrowser, but its quite a bit of work, which I just need to find the time to get around to doing…
I really like the idea of performance focused UI, a kind of sidekick to Workbench.
I originally intended to ‘just’ extend Stage, but the issue is, Stage communicated with a completely different protocol ( * ) to EigenD than EigenCommander/Browser, so its not really practical.
(*) this was due to supporting iOS, and its much more ‘limited’ in its coverage…