Snap, Flatpak and/or AppImages?

[Linux for blind general discussion]

As far as I am aware, AppImages are single-file binaries that include 
everything needed to run an application. I know they are distributed 
without any central repository, and I don't believe they need any setup 
in order to run. Information about the AppImage specification and how it 
works is available from

https://appimage.org/

~Kyle