Add Matrix container and Element web with nginx and DNS

hosts/h001/flake.lock

@@ -257,6 +257,22 @@
         "type": "github"
       }
     },
+    "matrix-nixpkgs": {
+      "locked": {
+        "lastModified": 1770562336,
+        "narHash": "sha256-ub1gpAONMFsT/GU2hV6ZWJjur8rJ6kKxdm9IlCT0j84=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "d6c71932130818840fc8fe9509cf50be8c64634f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "n8n-nixpkgs": {
       "locked": {
         "lastModified": 1769170682,
@@ -1335,6 +1351,7 @@
         "home-manager": "home-manager",
         "immich-nixpkgs": "immich-nixpkgs",
         "litellm-nixpkgs": "litellm-nixpkgs",
+        "matrix-nixpkgs": "matrix-nixpkgs",
         "n8n-nixpkgs": "n8n-nixpkgs",
         "nixarr": "nixarr",
         "nixpkgs": "nixpkgs_3",