In user:list output: with upper case
In filesystem: also upper case
when i add user in user-app with the same name, but with lower case, it creates this (example):
I create user in nextcloud named Boris, it creates user: “Boris: Boris”
I create user in user-app of syncloud named “boris”, it creates user: “boris_2742”: boris
I see, are you saying Syncloud Users app does not allow mixed case user names (I can check, but probably there is a reason for that)?
If you only need files for users (not other settings) then you can copy files to lower case user and then create user and sync files, they should appear.
After checking users app looks like only first letter must be lower case the rest are ok to be mixed case, which does not make sense to me.
Here is how you can disable the restriction if you want to test it now, meanwhile I will release an update to Users with the restriction removed (a day ot two).
sed -i 's#env\[USERNAME_REGEX\]=.*"#env[USERNAME_REGEX]="^[a-zA-Z][a-zA-Z0-9\._-]{1,32}$"#g' /var/snap/users/current/config/php-fpm.conf
Then restart Users:
snap restart users
Web should instantly allow adding users starting with capital letters.