As I understand it, the problem that both Nix and Docker try to solve is "How do I bundle and run this application in such a way that its dependencies are explicitly specified and don't interfere with anything installed on the host system".
They have different approaches, but I think that goal is the same?
That's Nix, not NixOS.
I also wouldn't be too sure on that "explicit" part for Docker. It's somewhat isolated, sure, but everything but explicit: you can download arbitrary data from wherever you like.
No, containers further isolate the network and hardware interaction of the process etc
Unless it has changed recently, Docker is not intended to be a security layer as far as I know.
As I understand it, the problem that both Nix and Docker try to solve is "How do I bundle and run this application in such a way that its dependencies are explicitly specified and don't interfere with anything installed on the host system".
They have different approaches, but I think that goal is the same?
That's Nix, not NixOS.
I also wouldn't be too sure on that "explicit" part for Docker. It's somewhat isolated, sure, but everything but explicit: you can download arbitrary data from wherever you like.
No, containers further isolate the network and hardware interaction of the process etc
Unless it has changed recently, Docker is not intended to be a security layer as far as I know.