plinth: should be usable with --no-install-recommends

Thanks to darkdragon-001:

I installed freedombox on debian with --no-install-recommends (manually adding ssl-certs for apache2). Now I am stuck at "Please wait for FreedomBox to finish installation. You can start using your FreedomBox once it is done." This is repeated every time the site is refreshed

Jun 17 19:22:45 9ba4bff63b3a sudo[31318]: pam_unix(sudo:session): session opened for user root by (uid=0)
Jun 17 19:22:45 9ba4bff63b3a sudo[31318]: pam_unix(sudo:session): session closed for user root
Jun 17 19:22:45 9ba4bff63b3a sudo[31356]:   plinth : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/usr/share/plinth/actions/users setup

python3-systemd package solved the problem. Overall to run the setup, I need the following additional packages: nscd python3-systemd samba-common-bin ssl-cert tdb-tools