A few hours ago I've discovered an OAuth2-related bug in Alby Hub that prevents you from linking your Alby account successfully.

By the way, thanks nostr:nprofile1qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcppemhxue69uhkummn9ekx7mp0qqsyv47lazt9h6ycp2fsw270khje5egjgsrdkrupjg27u796g7f5k0s0pfy4z for enabling signups again.

I've currently opened an issue on their Github and am trying to debug it.