I just tried to add the PPA as mentioned in README.md but I got this:
Err:8 http://ppa.launchpad.net/paolorotolo/droidcam/ubuntu bionic Release
404 Not Found [IP: 91.189.95.83 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/paolorotolo/droidcam/ubuntu bionic Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
I just tried to add the PPA as mentioned in README.md but I got this: