> Why is it that AppImages, snaps, flatpaks, Nix and every distro package manager is replaced by docker? Where are you seeing distros using docker for containe

> Why is it that AppImages, snaps, flatpaks, Nix and every distro package manager is replaced by docker? Where are you seeing distros using docker for containerization? If anything, I'd say Flatpak is the one you're most likely to find installed in a 2021 workstation linux. Docker's killing features are the same as they always were: usability and ecosystem. 'docker run thingamajig' is simple and DockerHub is very likely to have thingamajig in its repos. Of the ones you listed, I'd say flatpak is the only one that compares favorably to Docker on both aspects ('flatpak install thingamajig'). And since flatpak is more designed for desktop applications, it's actually the one gaining ground. Docker or other containerd-based solutions should remain the preferred choice for servers, since they're designed for that. Nix is vastly less user friendly. Snaps, last I checked, still don't have an open-source repository implementation, meaning that Canonical has absolute control over them. I don't know much about AppImage, but AFAICT it's just a file format and not a full package manager.