There is an .env.example file. Make your changes there and rename it to .env The start the image.
$ docker compose up -d
Then stop the container:
$ docker compose down
Locally you have to create the shared network:
$ docker create network kali-net
Add these to you .env and rebuild/restart the conainer:
$ docker compose up -d --build --force-recreate
For further documentation see the official guide at https://beszel.dev/.
Deployment is done by Github actions.
Changes to the vHost are done only LIVE in vHost files in the bound volume vhost.
They should be named as the VIRTUAL_HOST:
# content of the subdomain.example.com
client_max_body_size 100m;