Refactor flake structure with flake-parts

treefmt.nix

@@ -0,0 +1,60 @@
+{
+  perSystem = {pkgs, ...}: {
+    treefmt = {
+      programs = {
+        alejandra = {
+          enable = true;
+          excludes = ["pkgs/_sources/*.nix"];
+        };
+        biome = {
+          enable = true;
+          includes = ["*.json"];
+          excludes = ["pkgs/_sources/*.json"];
+          settings = {
+            javascript.formatter.enabled = false;
+            css.formatter.enabled = false;
+          };
+        };
+        dprint = {
+          enable = true;
+          includes = ["*.md" "*.toml" "*.yaml"];
+          excludes = ["secrets/*.yaml"];
+          settings = {
+            plugins = pkgs.dprint-plugins.getPluginList (plugins:
+              with plugins; [
+                dprint-plugin-toml
+                dprint-plugin-markdown
+                g-plane-pretty_yaml
+              ]);
+          };
+        };
+        just = {
+          enable = true;
+          includes = [".justfile"];
+        };
+        typos = let
+          config = ./.typos.toml |> builtins.readFile |> builtins.fromTOML;
+        in {
+          enable = true;
+          includes = ["*"];
+          excludes = ["assets/*"] ++ config.files.extend-exclude;
+          configFile = toString ./.typos.toml;
+          # Disable all extra option in treefmt module.
+          # Use config file.
+          sort = false;
+          isolated = false;
+          hidden = false;
+          noIgnore = false;
+          noIgnoreDot = false;
+          noIgnoreGlobal = false;
+          noIgnoreParent = false;
+          noIgnoreVCS = false;
+          binary = false;
+          noCheckFilenames = false;
+          noCheckFiles = false;
+          noUnicode = false;
+        };
+      };
+    };
+  };
+}