Move custom packages

flake-modules/new-draft.nix

@@ -0,0 +1,33 @@
+{
+  perSystem =
+    { pkgs, ... }:
+    {
+      packages.new-draft = pkgs.writeShellApplication {
+        name = "new-draft";
+
+        runtimeInputs = with pkgs; [
+          coreutils
+          git
+        ];
+
+        text = ''
+          title="$1"
+
+          exclude_words="for|at|and"
+
+          filtered_title=$(echo "$title" | sed -E "s/\b($exclude_words)\b//g")
+
+          slug=$(echo "$filtered_title" | tr '[:upper:]' '[:lower:]' | sed -e 's/[^a-z0-9]/-/g' -e 's/-\+/-/g' -e 's/^-//g' -e 's/-$//g')
+
+          file="source/_posts/$slug.md"
+
+          echo -e "---\ntitle: $title\ndate: ~\ndraft: true\n---" > "$file"
+
+          echo "File created: $file"
+
+          git add "$file"
+          git commit -s -m "Add draft: $title"
+        '';
+      };
+    };
+}