diff --git a/flake.lock b/flake.lock
index 7f905ab..3ace04f 100644
--- a/flake.lock
+++ b/flake.lock
@@ -16,6 +16,27 @@
         "type": "gitlab"
       }
     },
+    "colmena": {
+      "inputs": {
+        "nix-github-actions": "nix-github-actions",
+        "nixpkgs": "nixpkgs",
+        "stable": "stable",
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1790716853,
+        "narHash": "sha256-IT0OZW81jngocoxi9Gg2CTSGOC1O6qLioW17nevqIUk=",
+        "owner": "nix-community",
+        "repo": "colmena",
+        "rev": "524ddd89f62721a92e8629063d347e7a1ed390de",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "colmena",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -80,6 +101,27 @@
         "type": "github"
       }
     },
+    "nix-github-actions": {
+      "inputs": {
+        "nixpkgs": [
+          "colmena",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1737420293,
+        "narHash": "sha256-F1G5ifvqTpJq7fdkT34e/Jy9VCyzd5XfJ9TO8fHhJWE=",
+        "owner": "nix-community",
+        "repo": "nix-github-actions",
+        "rev": "f4158fa080ef4503c8f4c820967d946c2af31ec9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nix-github-actions",
+        "type": "github"
+      }
+    },
     "nixlib": {
       "locked": {
         "lastModified": 1736643958,
@@ -118,27 +160,27 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1790417811,
-        "narHash": "sha256-hEHTLdjJ0goKe43HoPq2LWAU5T28hB5Q4qFVKiXXE+c=",
-        "owner": "NixOS",
+        "lastModified": 1790578696,
+        "narHash": "sha256-ZoxIApko70jCdbH3l20HWXOBaT2HZd87orzd2yJ9dVE=",
+        "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "d31a9b2676c62b7cdbffb788088d958b4530089b",
+        "rev": "7a0f122f5090cf4c2ade2a13a0e229d4e19ba71f",
         "type": "github"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixos-26.05-small",
+        "owner": "nixos",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "nixpkgs-master": {
       "locked": {
-        "lastModified": 1790448801,
-        "narHash": "sha256-nAq6wML4elZMHNi/29VVZSEnptPMSo9JwhacZnLVPZU=",
+        "lastModified": 1791154889,
+        "narHash": "sha256-5r+uZhucGDR0td6Wuy0sVJTGD06w08b7/JWCZqbIV0w=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f9bce96a417afbb9c64725f8727e42efafeafc21",
+        "rev": "41a5f2d024c835b961344e9251113613492170cf",
         "type": "github"
       },
       "original": {
@@ -150,11 +192,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1790406335,
-        "narHash": "sha256-AERkR3boxGJEFjgW8R8gQ7MxJws2asPI0CUxaVXjQ8U=",
+        "lastModified": 1791128802,
+        "narHash": "sha256-/aO6R5OgFwp+lDMjfP7khEz3yLECPGKhQd4GC+Wo3Xg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "36bebc5639fda7c20265de714291da8b628475ee",
+        "rev": "2f45e44cc987ef65a0fad53b519c2052e2f97fe8",
         "type": "github"
       },
       "original": {
@@ -165,6 +207,22 @@
       }
     },
     "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1791122812,
+        "narHash": "sha256-MM/PAvITakxphijJ3Xu9ad7fS4kJseWEDAmXjakIX5E=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "daf349815cf8a920ab861cffdf0708c697911162",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-26.05-small",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
       "locked": {
         "lastModified": 1779622335,
         "narHash": "sha256-ViA62qtL5za7V3d5I8OA9q9JcFhsVAiL5jVHwEclWqk=",
@@ -182,8 +240,9 @@
     },
     "root": {
       "inputs": {
+        "colmena": "colmena",
         "nixos-generators": "nixos-generators",
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs_2",
         "nixpkgs-master": "nixpkgs-master",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "simple-nixos-mailserver": "simple-nixos-mailserver",
@@ -195,7 +254,7 @@
         "blobs": "blobs",
         "flake-compat": "flake-compat",
         "git-hooks": "git-hooks",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs_3"
       },
       "locked": {
         "lastModified": 1785198005,
@@ -219,11 +278,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1790247521,
-        "narHash": "sha256-TNfgoHsqsYYvaJImlWctfRkh4PseTagzegU1Dgdbehw=",
+        "lastModified": 1791103873,
+        "narHash": "sha256-nFxM+pKoZ8LJAEnUXARyCaOAloWgaW9kZQOSjWzKcTE=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "2bd00bd9bb35fe6d114888c8f1c2e946c541dd8f",
+        "rev": "dcd241ba97088c22569d1573286e1b9daad340c0",
         "type": "github"
       },
       "original": {
@@ -231,6 +290,37 @@
         "repo": "sops-nix",
         "type": "github"
       }
+    },
+    "stable": {
+      "locked": {
+        "lastModified": 1790608446,
+        "narHash": "sha256-CYsYyk0zInkpQ6ojuCpvb9MahlhFXkeZpzjOU9Lxkpk=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "c619be20e3508300c88af8aeafeaa7017559313f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "release-26.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1776166891,
+        "narHash": "sha256-bI8yrEGjrohR5hkQox7UrxDH7XqrYMwI8SL/LrJ1+S8=",
+        "owner": "nix-systems",
+        "repo": "triplet",
+        "rev": "6de7bc09397911ce03636afbcf6118745ab2cda0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "triplet",
+        "type": "github"
+      }
     }
   },
   "root": "root",