Hello @johannes,
Sure. The command to completely uninstall Bacularis on Ubuntu is following:
apt remove --purge bacularis bacularis-<web_server_name>
For the Lighttpd web server this is:
apt remove --purge bacularis bacularis-lighttpd
If you want to remove Bacularis with all its dependencies (web server, PHP), this command will be better
apt autoremove --purge bacularis bacularis-lighttpd
Best regards,
Marcin Haba (gani)