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(root)# apt install nix-bin (user)$ cd /some/where (user)$ git clone https://github.com/nixos/nixpkgs (user)$ cd nixpkgs (user)$ nix-build . -A gnucap-full (user)$ cd [..] (root)# mount -o bind ~user/.local/share/nix/root/nix/ /nix # is this needed? (user)$ nix-shell -p gnucap-full -I nixpkgs=/some/where/nixpkgs [nix-shell:~]$ gnucap [..] gnucap> _