Move nh and just into direnv dev-shell

.envrc

@@ -0,0 +1 @@
+use flake

flake/dev-shells.nix

@@ -2,12 +2,21 @@
   perSystem =
     { pkgs, ... }:
     {
-      devShells.sops = pkgs.mkShell {
-        packages = [
-          pkgs.sops
-          pkgs.age
-          pkgs.ssh-to-age
-        ];
+      devShells = {
+        default = pkgs.mkShell {
+          packages = [
+            pkgs.just
+            pkgs.nh
+          ];
+        };
+
+        sops = pkgs.mkShell {
+          packages = [
+            pkgs.sops
+            pkgs.age
+            pkgs.ssh-to-age
+          ];
+        };
       };
     };
 }

hosts/common.nix

@@ -52,10 +52,7 @@
     vimAlias = true;
   };
 
-  environment.systemPackages = [
-    pkgs.git
-    pkgs.just
-  ];
+  environment.systemPackages = [ pkgs.git ];
 
   nixpkgs.config.allowUnfreePredicate =
     pkg:

hosts/inspiron/default.nix

@@ -31,6 +31,4 @@
       ssh.enable = true;
     };
   };
-
-  programs.nh.enable = true;
 }

hosts/north/default.nix

@@ -29,6 +29,5 @@
     };
   };
 
-  programs.nh.enable = true;
   programs.steam.enable = true;
 }