Linux
Install
Install Flatpak:
📈
flatpak install flathub io.github.brunoherbelin.Vimix
If you want to get the vimix Beta version try to create your own Beta flatpak !
Install Snap:

snap install vimix
Install the Debian Ubuntu package:
sudo apt install vimix
NB: the Debian package is stable but not up to date with latest developments.
Install from Ubuntu Software app
Search for 'vimix' in the software explorer and choose the origin, Snap (left) or Flatpak (right).
Set App permissions
For snap of deb packages, permissions are set in the system Settings (left). For Flatpak, install Flatseal to adjust permissions (right):
NB: the snap does not allow to enable Shared Memory (if you need SHM, install deb or flatpak package, or compile from source).
Mac OSX
Download
Download latest package from Github Releases page.
Install
Open the DMG package, agree to the license and drop the vimix app to your Applications folder
Set permissions
(Allow to accept)