How to add/alter environment variables?

How do you add or alter environment variable of apps?
I.e. I need to change some settings in Paperless-ngx which are part of the docker-compose file. Is there a way to edit those via umbrel or do I have to use the terminal to edit and re-deploy it myself?

In Umbrel, there isn’t a direct GUI option to edit the environment variables of an app like Paperless-ngx. To alter environment variables, you’ll need to this via terminal:

SSH in to your umbrel (ssh -t umbrel@umbrel.local) and type

sudo nano umbrel/app-data/paperless/docker-compose.yml

Then restart the app by right-clicking on the app and clicking restart.

There is also the option of using Umbrel´s on board terminal via the advanced settings.