@j-po my first guess would be to create a specific profile with that plugin and run leiningen with-plugin ... when you want to use it or add a - to the front of the profile name if you want to exclude it. Examples in https://github.com/technomancy/leiningen/blob/master/doc/PROFILES.md

What is it called when you add an option to a lein template? (ex. lein new lumins myapp +auth, what is the +auth part called?)

figured it out, they're apparently called profiles

I don’t know if this is the right place to ask, but I’m getting this exception java.io.FileNotFoundException: /usr/local/src/server/.lein-env (Permission denied)

I understood that environ checked .lein-env and other locations but I find it weird that it throws an exception if it doesn’t find one of those

It says Permission denied. Is it possible that the server isn't allowed to access /usr/local/src/server/?

yeah, but I understood that environ “tried” (emphasis on the tried) to read from a couple of files AND the sys environment.

Didn’t know it would just explode if it couldn’t read one of those files.

this seems more and more like an environ issue.

just found it weird that it would just crash if it couldn’t read the first file. I was assuming it would eventually get to parse the system vars.

yeah, I would ask the environ people about that