[nix] Install npm packages in the home dir

nix/hosts/alymac/default.nix

@@ -96,6 +96,10 @@ in
 
       home = {
         packages = packageSets.everything;
+
+        file.".npmrc".text = ''
+          prefix = ''${HOME}/.npm-packages
+        '';
       };
 
       # DO NOT CHANGE UNLESS YOU ARE ABSOLUTELY SURE ALL STATE AFFECTED BY THIS

nix/hosts/alymac/zsh.nix

@@ -6,6 +6,8 @@
     initExtra = ''
       export GPG_TTY=$(tty)
       source ${dotfiles}/zsh/zshrc
+
+      export PATH="$PATH:$HOME/.npm-packages/bin"
     '';
   };
 }