Damn also need to build one of these! Looks great.
If you set up the environment carefully it should also be possible to run different node versions/environments on one machine.
“Just” set the PATH environment when starting the application (magic mirror/pimatic) and make sure only the path of the needed node version is in. Sure you need to be careful to install everything into distinct directories (not “\usr\bin” or something similar)
However we should maybe focus to get a nice pimatic compatible dashboard running so that we don’t need extra software but just a browser on the mirror pointing to the address of the dashboard hosted within pimatic.