I am at the point of integrating the internals into the machine.
Will update as I make progress.
https://gaggiuino.github.io/#/guides-stm32/lego-component-build-guide
Initial build of 3d printed enclosure. Was messy and difficult to get these wires so tightly packed into the case. Trick is to run some between the expansion board and the blackpill.
You do not have to disconnect as much as you think! Really just the brew switches. Leave the boiler wires attached!
After tidying the cables up a bit and realizing I only needed to move the boiler a small bit, not remove it, I proceeded:
Here it is booted!