Can't get self-hosting to work with docker

I've followed the tutorial here multiple times now using both the manual and one-line script with different versions (0.32.0, 0.35.2 and 0.35.4) and every time it seems to fail for one reason or another.

My latest attempt was with the one-line script which failed until I commented out the

PGPASSWORD_SUPERUSER

PGPASSWORD_SUPERUSER

variable to allow it to default. Following that everything started up, but when I attempt to go to the page I get

Unable to Reach Back-end

Unable to Reach Back-end

with no logs to indicate as to why (from what I can see).

Attached is my server logs from docker compose and a screenshot of the webpage.

If I'm just being dumb here please feel free to let me know haha I'd rather just get it working than complain