fix(home): set correct namespace for environment variable

users/aaron/home.nix

@@ -4,6 +4,13 @@
   # user config
   home.username = "aaron";
   home.homeDirectory = "/home/aaron";
+  # set env vars
+  home.sessionVariables = {
+    EDITOR = "vim";
+    NH_FLAKE = "/home/aaron/git/nixconfig";
+  };
+  # don't change
+  home.stateVersion = "25.11";
 
   # nixvim config
   programs.nixvim = {
@@ -137,20 +144,8 @@
     };
   };
 
-  # set env vars
-  home.sessionVariables = {
-    EDITOR = "vim";
-  };
-
-  # add flake env variable for nh
-  environment.sessionVariables = {
-    NH_FLAKE = "/home/aaron/git/nixconfig";
-  };
-
   # enable syncthing for user
   services.syncthing.enable = true;
   # enable home manager
   programs.home-manager.enable = true;
-  # don't change
-  home.stateVersion = "25.11";
 }