No version available for Ubuntu 23.04

[amcewen]

The touchpad on my Starbook MkV had been working okay on Ubuntu 22.04. I've just upgraded to 23.04 and the right-click doesn't work. When I try installing this, I get the following error when running the initial sudo add-apt-repository ppa:starlabs/ppa:

Err:6 https://ppa.launchpadcontent.net/starlabs/ppa/ubuntu lunar Release
404 Not Found [IP: 185.125.190.52 443]
Reading package lists... Done
E: The repository 'https://ppa.launchpadcontent.net/starlabs/ppa/ubuntu lunar Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Presumably that's because it's fairly new and there isn't a release for it yet? Any chance we could get one added? 😀