I use Halcyon with Pleroma and when I try to add new user to my list, I have an error " undefined".
It's working using "Mastodon FE" the mastodon's like frontend of Pleroma. So that's not a big trouble because I can add people using "Mastodon FE" and then read my list from pleroma.
Thank you for Halcyon, that's really great !
PS : don't know if it's relevant but I'm using "develop" tag for Pleroma.
Thank you very much for reporting this problem.
The error is still left from the time when Pleroma changed from numeric IDs to alphanumeric IDs and it's very easy to fix.
I just forgot it on that page.
It will be fixed with the next version of Halcyon.