Finally, a tool you can use without being a shadowy super coder!
On Ubuntu 22.04, you might need to install
libfuse2 first before running the app with something like:
sudo add-apt-repository universe sudo apt install libfuse2
As an alternative to having FUSE, you can manually extract the AppImage asset and run it. In a Terminal, it would look like:
chmod 777 Wagyu.Key.Gen-1.7.0.AppImage ./Wagyu.Key.Gen-1.7.0.AppImage --appimage-extract cd squashfs-root ./AppRun
"Wagyu Key Gen" cannot be opened because the developer cannot be verified:
macOS cannot verify the developer of "Wagyu Key Gen". Are you sure you want to open it?