diff --git a/.build/header_info.txt b/.build/header_info.txt
new file mode 100644
index 0000000..2b6390e
--- /dev/null
+++ b/.build/header_info.txt
@@ -0,0 +1,7 @@
+This LaTeX {latex_file_type} is free software and distributed under the MIT License. You
+may use it freely for your purposes. The latest version of the {latex_file_type} can be
+obtained via GitHub under
+   https://github.com/kesslermaximilian/LatexPackages
+For further information see the url above.
+Reportings of bugs, suggestions and improvements are welcome, see the README
+at the Git repository for further information.
diff --git a/Makefile b/Makefile
index dcf91a4..f3d5239 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,11 @@
 .PHONY: build
+BUILD_FLAGS=--source-dir src --build-dir build --recursive --git-version --pytex-version --license --author "Maximilian Keßler" --pytex-info-text --extra-header ".build/header_info.txt" --name "prepend-author"
 
 build: .initsubmodulelock
-	@python3 build.py
+	@python3 build.py ${BUILD_FLAGS}
+
+dirty: .initsubmodulelock
+	@python3 build.py ${BUILD_FLAGS} --allow-dirty
 
 init: .initsubmodulelock .gitconfiglock
 
diff --git a/PyTeX b/PyTeX
index 12a03e7..126d420 160000
--- a/PyTeX
+++ b/PyTeX
@@ -1 +1 @@
-Subproject commit 12a03e79897dfc4cf3de218ed88ba7c56debfcad
+Subproject commit 126d420b7a6ed2d4b2a42d534ab2e12344869643