{pkgs}: {
  admin = {
    priv = pkgs.writeText "id_ed25519" ''
      -----BEGIN OPENSSH PRIVATE KEY-----
      b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
      QyNTUxOQAAACDu7qxYQAPdAU6RrhB3llk2N1v4PTwcVzcX1oX265uC3gAAAJBJiYxDSYmM
      QwAAAAtzc2gtZWQyNTUxOQAAACDu7qxYQAPdAU6RrhB3llk2N1v4PTwcVzcX1oX265uC3g
      AAAEDE1W6vMwSEUcF1r7Hyypm/+sCOoDmKZgPxi3WOa1mD2u7urFhAA90BTpGuEHeWWTY3
      W/g9PBxXNxfWhfbrm4LeAAAACGJmb0BtaW5pAQIDBAU=
      -----END OPENSSH PRIVATE KEY-----
    '';

    pub = ''
      ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIO7urFhAA90BTpGuEHeWWTY3W/g9PBxXNxfWhfbrm4Le root@client
    '';
  };

  alice = {
    priv = pkgs.writeText "id_ed25519" ''
      -----BEGIN OPENSSH PRIVATE KEY-----
      b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
      QyNTUxOQAAACBbeWvHh/AWGWI6EIc1xlSihyXtacNQ9KeztlW/VUy8wQAAAJAwVQ5VMFUO
      VQAAAAtzc2gtZWQyNTUxOQAAACBbeWvHh/AWGWI6EIc1xlSihyXtacNQ9KeztlW/VUy8wQ
      AAAEB7lbfkkdkJoE+4TKHPdPQWBKLSx+J54Eg8DaTr+3KoSlt5a8eH8BYZYjoQhzXGVKKH
      Je1pw1D0p7O2Vb9VTLzBAAAACGJmb0BtaW5pAQIDBAU=
      -----END OPENSSH PRIVATE KEY-----
    '';

    pub = pkgs.writeText "id_ed25519.pub" ''
      ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFt5a8eH8BYZYjoQhzXGVKKHJe1pw1D0p7O2Vb9VTLzB alice@client
    '';
  };

  bob = {
    priv = pkgs.writeText "id_ed25519" ''
      -----BEGIN OPENSSH PRIVATE KEY-----
      b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
      QyNTUxOQAAACCWTaJ1D9Xjxy6759FvQ9oXTes1lmWBciXPkEeqTikBMAAAAJDQBmNV0AZj
      VQAAAAtzc2gtZWQyNTUxOQAAACCWTaJ1D9Xjxy6759FvQ9oXTes1lmWBciXPkEeqTikBMA
      AAAEDM1IYYFUwk/IVxauha9kuR6bbRtT3gZ6ZA0GLb9txb/pZNonUP1ePHLrvn0W9D2hdN
      6zWWZYFyJc+QR6pOKQEwAAAACGJmb0BtaW5pAQIDBAU=
      -----END OPENSSH PRIVATE KEY-----
    '';

    pub = pkgs.writeText "id_ed25519.pub" ''
      ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJZNonUP1ePHLrvn0W9D2hdN6zWWZYFyJc+QR6pOKQEw bob@client
    '';
  };
}