Can't send invites to a self hosted relay

**Describe the bug**
Running Buzz on MacOS, with a buzz relay running on NixOS.

Trying to copy the invite link fails with `Couldn’t copy the invite link. Try again.`

**Steps to reproduce**
1. Go to Settings/Invites
2. Click on Invite to Community
3. Click Copy link
4. `Couldn’t copy the invite link. Try again.`
5. Feeling lonely in the community :(

**Expected behavior**
Needed a link to invite collaborators, got to the link interface, got no link.

**Version and platform**
Find your version at the bottom of the Settings sidebar. Write "unknown" if you can't determine it.
- Buzz version: Buzz v0.4.46
- OS: MacOS on a Macbook Pro M1

**Logs / additional context**
No idea where logs are, would love to know