Currently when looking up a DID, the knot server defaults to https://plc.directory, it appears this is coming from this dependency https://github.com/bluesky-social/indigo/blob/main/atproto/identity/directory.go#L62
As a result when performing DID resolution all requests are only sent that directory, it would be nice if there was a way for a knot to be configured to use an alternative PLC or a mirror.
Additional information My specific use case for this is https://plc.directory does not have a AAAA record for ipv6 networking
shail@debian13:~/tangled/tangled/core$ curl -6 https://plc.directory/did:plc:fjoxhdnj2kep6llsvhtxqrk3
curl: (6) Could not resolve host: plc.directory
and from journalctl -u knotserver
Oct 02 23:57:37 debian-2gb-ash-1 knot[16017]: time=2025-10-02T23:57:37.813Z level=ERROR msg="signature verification failed" command=knot url=/xrpc/sh.tangled.repo.create err="token is unverifiable: error while executing keyfunc: token has invalid issuer: resolving DID (did:plc:fjoxhdnj2kep6llsvhtxqrk3): DID resolution failed: PLC directory lookup: Get \"https://plc.directory/did:plc:fjoxhdnj2kep6llsvhtxqrk3\": context deadline exceeded (Client.Timeout exceeded while awaiting headers)"
closing as duplicate of https://tangled.org/@tangled.org/core/issues/259