carddav not working

[ajkessel]

hydroxide is working well for me except I'm unable to make carddav queries. The server is listening on the default port (8080) and accepting HTTP connections, but whether I query it locally directly or go through Caddy reverse-proxy for HTTPS, I get an error.

Going to my reverse-proxied domain name from a browser shows:

carddav: not found

curl locally:

# curl --user $HYDROXIDE_USER:$HYDROXIDE_PASSWORD -sD - -o /dev/null http://localhost:8080/
HTTP/1.1 500 Internal Server Error
Content-Type: text/plain; charset=utf-8
Www-Authenticate: Basic
X-Content-Type-Options: nosniff
Date: Tue, 03 Dec 2024 00:17:44 GMT
Content-Length: 19

# curl --user $HYDROXIDE_USER:$HYDROXIDE_PASSWORD -sD - -o /dev/null http://localhost:8080/.well-known/caldav
HTTP/1.1 500 Internal Server Error
Content-Type: text/plain; charset=utf-8
Www-Authenticate: Basic
X-Content-Type-Options: nosniff
Date: Tue, 03 Dec 2024 00:17:49 GMT
Content-Length: 19

with debug enabled, I see this when trying to connect from Thunderbird:

2024/12/02 19:22:37 &struct { protonmail.resp; *protonmail.Event }{resp:protonmail.resp{Code:1000, RawAPIError:(*protonmail.RawAPIError)(nil)}, Event:(*protonmail.Event)(0xc00007e480)}

Probably not relevant to the issue, but this is currently running on an Ubuntu Oracular box.

Any tips?