diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..e3322d6
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "doxygen-awesome-css"]
+	path = doxygen-awesome-css
+	url = https://github.com/jothepro/doxygen-awesome-css.git
+[submodule "docs/doxygen-awesome-css"]
+	path = docs/doxygen-awesome-css
+	url = https://github.com/jothepro/doxygen-awesome-css.git
diff --git a/docs/doxygen-awesome-css b/docs/doxygen-awesome-css
new file mode 160000
index 0000000..a3c119b
--- /dev/null
+++ b/docs/doxygen-awesome-css
@@ -0,0 +1 @@
+Subproject commit a3c119b4797be2039761ec1fa0731f038e3026f6
diff --git a/doxygen-awesome-css b/doxygen-awesome-css
new file mode 160000
index 0000000..a3c119b
--- /dev/null
+++ b/doxygen-awesome-css
@@ -0,0 +1 @@
+Subproject commit a3c119b4797be2039761ec1fa0731f038e3026f6
diff --git a/src/util/gz_regex.cpp b/src/util/regex.cpp
similarity index 92%
rename from src/util/gz_regex.cpp
rename to src/util/regex.cpp
index fc1c433..fbcd196 100755
--- a/src/util/gz_regex.cpp
+++ b/src/util/regex.cpp
@@ -1,4 +1,4 @@
-#include "gz_regex.hpp"
+#include "regex.hpp"
 
 namespace gz::re {
     const std::regex types::intT(R"([+\-]?(0x|0X)?\d+)");
diff --git a/src/util/gz_regex.hpp b/src/util/regex.hpp
similarity index 100%
rename from src/util/gz_regex.hpp
rename to src/util/regex.hpp