I've not come across a tutorial in which it helps explain how to compile supercollider with plugins on bela. I was wondering if this is something anyone is willing to share, step by step in this post, or can point to a similar post that already contains a tutorial?

Specifically, since Bela is a great tool for multichannel audio, I'm focusing on the Ambisonic toolkit: http://www.ambisonictoolkit.net

If there is already a SC3plugins folder, can we confirm that we can simply add UGENs to this folder and it'll work on boot?

SC3plugins should already be on the board, and ATK should be part of it.

Instructions to build SC3plugins on Bela are here, however they are fairly outdated. Probably something like this would work today, after you copied this supercollider source to /root/supercollider and the sc3-plugins source to /root/sc3-plugins

cd /root/sc3-plugins
mkdir build
cd build
cmake -DSC_PATH=/root/supercollider -DCMAKE_C_FLAGS="-march=armv7-a -mtune=cortex-a8 -mfloat-abi=hard -mfpu=neon -O2" -DCMAKE_CPP_FLAGS="-march=armv7-a -mtune=cortex-a8 -mfloat-abi=hard -mfpu=neon -O2" ..
make
make install

but - again - they are already on the board so you shouldn't need to do the above.

Fantastic — There are more plugins that i've been investigating other than ATK, but it was an example to suggest incase it wasn't already there.

Thanks for the post, hopefully it's helpful to others too 😃 Music time!