diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a415272..7d70f67 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,5 @@
 # Generated by soonix, DO NOT EDIT
 include:
-- component: gitlab.com/TECHNOFAB/nix-gitlab-ci/nix-gitlab-ci@3.0.0-alpha.2
+- component: gitlab.com/TECHNOFAB/nix-gitlab-ci/nix-gitlab-ci@3.1.2
   inputs:
-    version: 3.0.0-alpha.2
+    version: 3.1.2
diff --git a/docs/index.md b/docs/index.md
index 986e3aa..b457a50 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -102,4 +102,3 @@ Soonix is designed as a cleaner, more maintainable alternative to Nixago:
 Ready to start using Soonix? Check out the [Usage Guide](./usage.md) for detailed
 setup instructions and examples, or browse the [Integration Guide](./integrations.md)
 to see how to use Soonix with different development tools and frameworks.
-
diff --git a/nix/repo/devShells.nix b/nix/repo/devShells.nix
index 16ebc5d..c473189 100644
--- a/nix/repo/devShells.nix
+++ b/nix/repo/devShells.nix
@@ -3,18 +3,66 @@
   inputs,
   ...
 }: let
-  inherit (inputs) pkgs devshell treefmt;
+  inherit (inputs) pkgs devshell treefmt devtools-lib;
+  inherit (cell) soonix;
+  treefmtWrapper = treefmt.mkWrapper pkgs {
+    projectRootFile = "flake.nix";
+    programs = {
+      alejandra.enable = true;
+      mdformat.enable = true;
+    };
+    settings.formatter.mdformat = {
+      excludes = ["CHANGELOG.md" "LICENSE.md"];
+      command = let
+        pkg = pkgs.python3.withPackages (p: [
+          p.mdformat
+          p.mdformat-mkdocs
+          p.mdformat-frontmatter
+        ]);
+      in "${pkg}/bin/mdformat";
+    };
+  };
 in {
   default = devshell.mkShell {
-    imports = [cell.soonix.devshellModule];
+    imports = [soonix.devshellModule devtools-lib.devshellModule];
     packages = [
       pkgs.nil
-      (treefmt.mkWrapper pkgs {
-        programs = {
-          alejandra.enable = true;
-          mdformat.enable = true;
-        };
-      })
+      treefmtWrapper
     ];
+    lefthook.config = {
+      "pre-commit" = {
+        parallel = true;
+        jobs = [
+          {
+            name = "treefmt";
+            stage_fixed = true;
+            run = "${treefmtWrapper}/bin/treefmt";
+            env.TERM = "dumb";
+          }
+          {
+            name = "soonix";
+            stage_fixed = true;
+            run = "nix run .#soonix:update";
+          }
+        ];
+      };
+    };
+    cocogitto.config = {
+      tag_prefix = "v";
+      ignore_merge_commits = true;
+      changelog = {
+        authors = [
+          {
+            username = "TECHNOFAB";
+            signature = "technofab";
+          }
+        ];
+        path = "CHANGELOG.md";
+        template = "remote";
+        remote = "gitlab.com";
+        repository = "soonix";
+        owner = "TECHNOFAB";
+      };
+    };
   };
 }
diff --git a/nix/repo/flake.lock b/nix/repo/flake.lock
index e223cb3..b746e0a 100644
--- a/nix/repo/flake.lock
+++ b/nix/repo/flake.lock
@@ -13,24 +13,43 @@
       "original": {
         "dir": "lib",
         "owner": "rensa-nix",
+        "ref": "v0.1.0",
         "repo": "devshell",
         "type": "gitlab"
       }
     },
+    "devtools-lib": {
+      "locked": {
+        "dir": "lib",
+        "lastModified": 1767214272,
+        "narHash": "sha256-gvW7flZ60xdv3Z3Ksec5jcRjW2sqRHsGoJdwsNWQVPk=",
+        "owner": "rensa-nix",
+        "repo": "devtools",
+        "rev": "f40e59c32c48cdbf4cbc621c2f0f11e7bb80dbd3",
+        "type": "gitlab"
+      },
+      "original": {
+        "dir": "lib",
+        "owner": "rensa-nix",
+        "ref": "v0.1.0",
+        "repo": "devtools",
+        "type": "gitlab"
+      }
+    },
     "nix-gitlab-ci-lib": {
       "locked": {
         "dir": "lib",
-        "lastModified": 1756974596,
-        "narHash": "sha256-KxQj76sUqvPNtrqzNWMZeOWqTitc0aFCYj7UZzToiEA=",
+        "lastModified": 1765444672,
+        "narHash": "sha256-B0cMjRs9P50ym9Le0VUcRN69Yy6tbV13MXq81tTTEus=",
         "owner": "TECHNOFAB",
         "repo": "nix-gitlab-ci",
-        "rev": "00cf5b83c6c46698fba12a54b9cc15c6d4e5a4dd",
+        "rev": "8f88a53b5479773cd626420362631bc1da99e677",
         "type": "gitlab"
       },
       "original": {
         "dir": "lib",
         "owner": "TECHNOFAB",
-        "ref": "3.0.0-alpha.2",
+        "ref": "3.1.2",
         "repo": "nix-gitlab-ci",
         "type": "gitlab"
       }
@@ -72,6 +91,7 @@
     "root": {
       "inputs": {
         "devshell-lib": "devshell-lib",
+        "devtools-lib": "devtools-lib",
         "nix-gitlab-ci-lib": "nix-gitlab-ci-lib",
         "nixmkdocs-lib": "nixmkdocs-lib",
         "nixtest-lib": "nixtest-lib",
diff --git a/nix/repo/flake.nix b/nix/repo/flake.nix
index 8a17542..87d2d37 100644
--- a/nix/repo/flake.nix
+++ b/nix/repo/flake.nix
@@ -1,9 +1,10 @@
 {
   inputs = {
-    devshell-lib.url = "gitlab:rensa-nix/devshell?dir=lib";
-    nixtest-lib.url = "gitlab:TECHNOFAB/nixtest?dir=lib";
+    devshell-lib.url = "gitlab:rensa-nix/devshell/v0.1.0?dir=lib";
+    devtools-lib.url = "gitlab:rensa-nix/devtools/v0.1.0?dir=lib";
+    nixtest-lib.url = "gitlab:TECHNOFAB/nixtest/v1.2.1?dir=lib";
     nixmkdocs-lib.url = "gitlab:TECHNOFAB/nixmkdocs?dir=lib";
-    nix-gitlab-ci-lib.url = "gitlab:TECHNOFAB/nix-gitlab-ci/3.0.0-alpha.2?dir=lib";
+    nix-gitlab-ci-lib.url = "gitlab:TECHNOFAB/nix-gitlab-ci/3.1.2?dir=lib";
     treefmt-nix = {
       url = "github:numtide/treefmt-nix";
       flake = false;