chore: update flake.lock; update noctalia-shell

modules/core/nix.nix

@@ -114,10 +114,11 @@ in
       experimental-features = "nix-command flakes pipe-operators";
       substituters = lib.mkForce [
         "http://127.0.0.1:2048"
+        "https://mirror.sjtu.edu.cn/nix-channels/store"
+        "https://cache.nixos.org"
 
         # "https://mirrors.ustc.edu.cn/nix-channels/store"
         # "https://mirrors.sjtug.sjtu.edu.cn/nix-channels/store"
-        # "https://mirror.sjtu.edu.cn/nix-channels/store"
         # "https://nix-community.cachix.org"
         # "https://cache.garnix.io"
       ];

modules/core/user.nix

@@ -2,6 +2,7 @@
   config,
   lib,
   pkgs,
+  hostname,
   username,
   userdesc,
   secrets,
@@ -44,7 +45,7 @@ in
       extraRules = [
         {
           users = [ username ];
-          noPass = true;
+          noPass = hostname == "imxyy-nix";
           keepEnv = true;
         }
       ];