- system: `"x86_64-linux"`
 - host os: `Linux 5.3.5, NixOS, 19.09.736.9bbad4c6254 (Loris)`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.3`
 - channels(root): `"nixos-19.09.736.9bbad4c6254, unstable-20.03pre196201.07d4df59626"`
 - channels(mog): `""`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixos`