Refresh flake.lock and toggle system options

Upgrade several flake inputs to newer commits and hashes, remove the
unused
`nixpkgs_2` entry, and adjust its dependent inputs. Enable VirtualBox
support
while disabling the Winboat remote‑desktop module. Update `nh` command
aliases
to use the short `-H` flag and always‑run the dry‑run mode.

flake.lock

@@ -145,11 +145,11 @@
       },
       "locked": {
         "dir": "pkgs/firefox-addons",
-        "lastModified": 1774152686,
-        "narHash": "sha256-RlEgsdHr9IQm79SsXKNT8iU+ZjjIOPTJXcatMqgSfwk=",
+        "lastModified": 1774497795,
+        "narHash": "sha256-tzgxKaCEMcU6XT0fjV/vEqDCM9yij6wBgPPBKiK8Dfk=",
         "owner": "rycee",
         "repo": "nur-expressions",
-        "rev": "4c83dbe717272428562a33db817f492195e227ae",
+        "rev": "11af6f465a038233b8123022dcb7e293f3229f11",
         "type": "gitlab"
       },
       "original": {
@@ -349,11 +349,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1774201162,
-        "narHash": "sha256-th4i3X3P3yikPk3qu1A5DQ40tIztZKvAKPaa9hjXF+U=",
+        "lastModified": 1774539458,
+        "narHash": "sha256-H9GIOqdMfQZ6lFetsQhO9TCq53hYzpTHDWOt3PRh9V0=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "932ca46013acabbedd13c27dc278e3d043707e46",
+        "rev": "e2e5f512b33ed19a7a3271d0b73ed5eefcc0be5f",
         "type": "github"
       },
       "original": {
@@ -422,11 +422,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1773821835,
-        "narHash": "sha256-TJ3lSQtW0E2JrznGVm8hOQGVpXjJyXY2guAxku2O9A4=",
+        "lastModified": 1774386573,
+        "narHash": "sha256-4hAV26quOxdC6iyG7kYaZcM3VOskcPUrdCQd/nx8obc=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "b40629efe5d6ec48dd1efba650c797ddbd39ace0",
+        "rev": "46db2e09e1d3f113a13c0d7b81e2f221c63b8ce9",
         "type": "github"
       },
       "original": {
@@ -467,22 +467,6 @@
         "type": "github"
       }
     },
-    "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1770107345,
-        "narHash": "sha256-tbS0Ebx2PiA1FRW8mt8oejR0qMXmziJmPaU1d4kYY9g=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "4533d9293756b63904b7238acb84ac8fe4c8c2c4",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "noctalia": {
       "inputs": {
         "nixpkgs": [
@@ -491,11 +475,11 @@
         "noctalia-qs": "noctalia-qs"
       },
       "locked": {
-        "lastModified": 1774202729,
-        "narHash": "sha256-rSyMyO1xwqOUwYYQz8R89VKygYMNhvpiqOXp9Fp0mEA=",
+        "lastModified": 1774536980,
+        "narHash": "sha256-j7I4XVEaUsiR0EOUJGnY7DZ0V/GYtcGJ97K3abzU9QY=",
         "owner": "noctalia-dev",
         "repo": "noctalia-shell",
-        "rev": "56c0904dc6f1c1b2fbfc06756252eda5c8828a60",
+        "rev": "396fba755b515913f4ac7596c30b827b0f67d53a",
         "type": "github"
       },
       "original": {
@@ -514,11 +498,11 @@
         "treefmt-nix": "treefmt-nix_2"
       },
       "locked": {
-        "lastModified": 1774059741,
-        "narHash": "sha256-ObYsrf7XLJDqWVbJ+GWH5JYV/EUc7SVdhGx5r5wWKno=",
+        "lastModified": 1774351986,
+        "narHash": "sha256-N131zILQ06ZNEvtgtjjFZ0N5qEI70rKKhCZsBcZoDH8=",
         "owner": "noctalia-dev",
         "repo": "noctalia-qs",
-        "rev": "c9beee5c634ec784af128b8e7c56db14012ab17f",
+        "rev": "066835ebd5daeabc86df1e62fb5fe82a51407cc0",
         "type": "github"
       },
       "original": {
@@ -797,7 +781,11 @@
     },
     "treefmt-nix_2": {
       "inputs": {
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": [
+          "noctalia",
+          "noctalia-qs",
+          "nixpkgs"
+        ]
       },
       "locked": {
         "lastModified": 1772660329,