Hey thanks for the in depth reply.
Rez works with Vanilla apps too, you can keep them out entirely if you wish too.
Atm at my place we do not have all dccs as Rez packages, but just resolve the env and then launch egg substance in that shell with the resolved env. I would not want to miss Rez, just to overcome python requirements and their deps.
But I will give this is a shot and report back how it all went.
I like your ecosystem of tools, unimenu, detect app already run at our place (in Rez via Rez pip). So thanks for all your work out in the open.
Now that I think of that I think I ran into an issue with detect app… but I will make a gh issue.
Maybe you could join the TSC Meeting which is once a month sometime to ask questions there, or the ASWF slack is also good if you would want to ask questions there is a dedicated Rez channel.