feat: setup statix linter

.pre-commit-config.yaml

@@ -4,3 +4,11 @@ repos:
     hooks:
       - id: nixfmt-nix
         args: [--, --check]
+  - repo: local
+    hooks:
+      - id: statix
+        name: statix
+        entry: statix check
+        language: system
+        files: \.nix$
+        pass_filenames: false

flake.nix

@@ -111,7 +111,10 @@
         formatter = pkgs.nixfmt-tree;
 
         devShells.default = pkgs.mkShell {
-          packages = [ pkgs.pre-commit ];
+          packages = [
+            pkgs.pre-commit
+            pkgs.statix
+          ];
         };
       }
     );

statix.toml

@@ -0,0 +1 @@
+disabled = ["repeated_keys"]