diff --git a/flake.lock b/flake.lock
index 5b81ed1..a74ed2d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,53 +1,6 @@
 {
   "nodes": {
-    "attic": {
-      "inputs": {
-        "crane": "crane",
-        "flake-compat": "flake-compat",
-        "flake-parts": "flake-parts",
-        "nix-github-actions": "nix-github-actions",
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "nixpkgs-stable": "nixpkgs-stable"
-      },
-      "locked": {
-        "lastModified": 1736394512,
-        "narHash": "sha256-dIrCD0rLXlW1XsNiF50vTeHi1l4xHYh0m+aCdHNcMfU=",
-        "owner": "cything",
-        "repo": "attic",
-        "rev": "e91261dc9a22d267700ab9095155f5581ac3b06c",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cything",
-        "ref": "compression",
-        "repo": "attic",
-        "type": "github"
-      }
-    },
     "crane": {
-      "inputs": {
-        "nixpkgs": [
-          "attic",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1722960479,
-        "narHash": "sha256-NhCkJJQhD5GUib8zN9JrmYGMwt4lCRp6ZVNzIiYCl0Y=",
-        "owner": "ipetkov",
-        "repo": "crane",
-        "rev": "4c6c77920b8d44cd6660c1621dea6b3fc4b4c4f4",
-        "type": "github"
-      },
-      "original": {
-        "owner": "ipetkov",
-        "repo": "crane",
-        "type": "github"
-      }
-    },
-    "crane_2": {
       "inputs": {
         "nixpkgs": [
           "lanzaboote",
@@ -105,44 +58,7 @@
         "type": "github"
       }
     },
-    "flake-compat_2": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1696426674,
-        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
-        "type": "github"
-      },
-      "original": {
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "type": "github"
-      }
-    },
     "flake-parts": {
-      "inputs": {
-        "nixpkgs-lib": [
-          "attic",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1722555600,
-        "narHash": "sha256-XOQkdLafnb/p9ij77byFQjDf5m5QYl9b2REiVClC+x4=",
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "rev": "8471fe90ad337a8074e957b69ca4d0089218391d",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "type": "github"
-      }
-    },
-    "flake-parts_2": {
       "inputs": {
         "nixpkgs-lib": [
           "lanzaboote",
@@ -225,9 +141,9 @@
     },
     "lanzaboote": {
       "inputs": {
-        "crane": "crane_2",
-        "flake-compat": "flake-compat_2",
-        "flake-parts": "flake-parts_2",
+        "crane": "crane",
+        "flake-compat": "flake-compat",
+        "flake-parts": "flake-parts",
         "flake-utils": "flake-utils",
         "nixpkgs": [
           "nixpkgs"
@@ -250,27 +166,6 @@
         "type": "github"
       }
     },
-    "nix-github-actions": {
-      "inputs": {
-        "nixpkgs": [
-          "attic",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1729742964,
-        "narHash": "sha256-B4mzTcQ0FZHdpeWcpDYPERtyjJd/NIuaQ9+BV1h+MpA=",
-        "owner": "nix-community",
-        "repo": "nix-github-actions",
-        "rev": "e04df33f62cdcf93d73e9a04142464753a16db67",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "nix-github-actions",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1736012469,
@@ -320,22 +215,6 @@
       }
     },
     "nixpkgs-stable": {
-      "locked": {
-        "lastModified": 1724316499,
-        "narHash": "sha256-Qb9MhKBUTCfWg/wqqaxt89Xfi6qTD3XpTzQ9eXi3JmE=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "797f7dc49e0bc7fab4b57c021cdf68f595e47841",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-24.05",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs-stable_2": {
       "locked": {
         "lastModified": 1710695816,
         "narHash": "sha256-3Eh7fhEID17pv9ZxrPwCLfqXnYP006RKzSs0JptsN84=",
@@ -362,7 +241,7 @@
           "lanzaboote",
           "nixpkgs"
         ],
-        "nixpkgs-stable": "nixpkgs-stable_2"
+        "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
         "lastModified": 1717664902,
@@ -380,7 +259,6 @@
     },
     "root": {
       "inputs": {
-        "attic": "attic",
         "disko": "disko",
         "home-manager": "home-manager",
         "lanzaboote": "lanzaboote",
diff --git a/flake.nix b/flake.nix
index 779e8a7..f7c743f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,10 +23,6 @@
       url = "github:nix-community/lanzaboote/v0.4.1";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    attic = {
-      url = "github:cything/attic/compression";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
 
     nixpkgs-borg.url = "github:cything/nixpkgs/borg"; # unmerged PR
     nixpkgs-btrbk.url = "github:cything/nixpkgs/btrbk"; # unmerged PR