How can I have Kicad version v5 and the new v6 together in the same machine while v6 is not still official?

it should be already available at kicd.org download site…

as in this forum

we would configure bundled python to load python modules only from the appimage… unfortunately I’m not confident enough with AppImg to know how to solve it…

Unfortunately it seems that @probono is not very active ATM nor here nor at AppImage forum