> What advantages has Nix over Flatpak? Seems to be just yet another esoteric solution for installing software? Why should one prefer it over other solutions?

> What advantages has Nix over Flatpak? Seems to be just yet another esoteric solution for installing software? Why should one prefer it over other solutions? It's not just for installing software - I have a declarative, shared configuration for each software that works deterministically on each system I share it with (NixOS or not). > Are Nix-Installations portable? I use Flatpak to have the same installation on different systems available, just move my SSD between them. How ell would this work with Nix? No, but the configurations are (see earlier response), so this seems to be the same benefit here. > How well does Nix integrate packages into the system? Flatpak is integrating apps into the desktop environments. Probably just following standards, but is Nix doing this too? I don't exactly know how to answer this - and it's probably partially because I don't use many modern desktop environments (when on NixOS I use i3, otherwise I'm on macOS, which is a bit of a specialized usecase). So I can't really comment here. As far as installing immutable packages accessible from the system - it does a pretty exceptional job.