diff --git a/inputs.nix b/inputs.nix
index 1979433..1c6c039 100644
--- a/inputs.nix
+++ b/inputs.nix
@@ -1,29 +1,84 @@
 let self = {
-  lock ? import ./lock.nix
-, lib ? import "${(self {}).nixpkgs}/lib"
+  lock ? import lockFile,
+  lockFile ? ./lock.nix,
+  pkgs ? throw "inputs called without pkgs",
 }:
 
 {
   inherit lock;
-  nixos-vscode-server = builtins.fetchTarball {
-    name = "nixos-vscode-server";
+  nixos-vscode-server = rec {
     url = "https://github.com/nix-community/nixos-vscode-server/archive/${lock.nixos-vscode-server.revision}.tar.gz";
-    sha256 = "${lock.nixos-vscode-server.sha256}";
+    updateScript = pkgs.den-http-get-updater {
+      fileLocation = lockFile;
+      previousHash = lock.nixos-vscode-server.sha256;
+      previousVersion = lock.nixos-vscode-server.revision;
+      versionUrl = "https://api.github.com/repos/nix-community/nixos-vscode-server/commits";
+      contentParser = "jq -rc '.[0].sha' <<< \"$newVersion\"";
+      prefetchUrlLocation = {
+        file = ./inputs.nix;
+        attrpath = "nixos-vscode-server.url";
+      };
+    };
+    outPath = builtins.fetchTarball {
+      inherit url;
+      name = "nixos-vscode-server";
+      sha256 = "${lock.nixos-vscode-server.sha256}";
+    };
   };
-  nixpkgs = builtins.fetchTarball {
-    name = "nixpkgs";
+  nixpkgs = rec {
     url = "https://github.com/NixOS/nixpkgs/archive/${lock.nixpkgs.revision}.tar.gz";
-    sha256 = "${lock.nixpkgs.sha256}";
+    updateScript = pkgs.den-http-get-updater {
+      fileLocation = lockFile;
+      previousHash = lock.nixpkgs.sha256;
+      previousVersion = lock.nixpkgs.revision;
+      versionUrl = "https://channels.nixos.org/nixos-24.11/git-revision";
+      prefetchUrlLocation = {
+        file = ./inputs.nix;
+        attrpath = "nixpkgs.url";
+      };
+    };
+    outPath = builtins.fetchTarball {
+      inherit url;
+      name = "nixpkgs";
+      sha256 = "${lock.nixpkgs.sha256}";
+    };
   };
-  nixpkgs-unstable = builtins.fetchTarball {
-    name = "nixpkgs-unstable";
+  nixpkgs-unstable = rec {
     url = "https://github.com/NixOS/nixpkgs/archive/${lock.nixpkgs-unstable.revision}.tar.gz";
-    sha256 = "${lock.nixpkgs-unstable.sha256}";
+    updateScript = pkgs.den-http-get-updater {
+      fileLocation = lockFile;
+      previousHash = lock.nixpkgs-unstable.sha256;
+      previousVersion = lock.nixpkgs-unstable.revision;
+      versionUrl = "https://channels.nixos.org/nixos-unstable/git-revision";
+      prefetchUrlLocation = {
+        file = ./inputs.nix;
+        attrpath = "nixpkgs-unstable.url";
+      };
+    };
+    outPath = builtins.fetchTarball {
+      inherit url;
+      name = "nixpkgs-unstable";
+      sha256 = "${lock.nixpkgs-unstable.sha256}";
+    };
   };
-  cosmic-modules = builtins.fetchTarball {
-    name = "cosmic-modules";
+  cosmic-modules = rec {
     url = "https://github.com/lilyinstarlight/nixos-cosmic/archive/${lock.cosmic-modules.revision}.tar.gz";
-    sha256 = "${lock.cosmic-modules.sha256}";
+    updateScript = pkgs.den-http-get-updater {
+      fileLocation = lockFile;
+      previousHash = lock.cosmic-modules.sha256;
+      previousVersion = lock.cosmic-modules.revision;
+      versionUrl = "https://api.github.com/repos/lilyinstarlight/nixos-cosmic/commits";
+      contentParser = "jq -rc '.[0].sha' <<< \"$newVersion\"";
+      prefetchUrlLocation = {
+        file = ./inputs.nix;
+        attrpath = "cosmic-modules.url";
+      };
+    };
+    outPath = builtins.fetchTarball {
+      inherit url;
+      name = "cosmic-modules";
+      sha256 = "${lock.cosmic-modules.sha256}";
+    };
   };
 };
 in self