open webui - extend timeout

[Solear]

Hi, I have installed open webui and it runs successfully with local llama models.
However, with larger models where the responses take longer, a timeout error occurs. However, the AI result still comes if you wait even longer.

I have now read that an environment variable can be changed when open webui is normally pulled up via docker compose:
AIOHTTP_CLIENT_TIMEOUT=7200
In the example this would be 2h (7200s).

I have now looked at how this is installed in the LXC container. It also seems to be installed via docker compose. I have now opened nano /opt/open-webui/.env and inserted the above variable.
Then restarted the container - but webui no longer starts.

Does anyone have an idea how I can extend the timeout in the container?

Thanks!