move apps into pkgs and rename hosts

pkgs/tools/misc/encrypt-secret/package.nix

@@ -0,0 +1,11 @@
+{ pkgs, ... }:
+
+pkgs.writeShellScriptBin "encrypt-secret" ''
+  printf "\nEnter the secret data to encrypt for all hosts...\n\n" 1>&2
+  read -p "Secret: " secret
+  printf "\nEncrypting...\n\n" 1>&2
+  tmpfile=$(mktemp)
+  echo "''${secret}" > ''${tmpfile}
+  ${pkgs.age}/bin/age --encrypt --armor --recipients-file ${builtins.toString ../../../../misc/public-keys} $tmpfile
+  rm $tmpfile
+''