For certain labextensions, which are bundled alongside their python packages as of JupyterLab 3, voila fails to find the bundled files. Notably this affects k3d 2.11.0: the files bundled with the ...

So when you deploy mutliple notebooks or voila apps from a parent directory, they both try to read/write to the same file so you get collisions. I would expected the rsconnect-python record to be ...