diff --git a/.gitmodules b/.gitmodules
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+++ b/.gitmodules
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+[submodule "themes/hugo-bootstrap-bare"]
+	path = themes/hugo-bootstrap-bare
+	url = https://gitlab.com/patdavid/hugo-bootstrap-bare.git
+[submodule "themes/hugo-darktable-docs-theme"]
+	path = themes/hugo-darktable-docs-theme
+	url = https://gitlab.com/pixlsus/hugo-darktable-docs-theme.git
+[submodule "themes/hugo-pdf-theme"]
+	path = themes/hugo-pdf-theme
+	url = https://gitlab.com/pixlsus/hugo-pdf-theme.git
diff --git a/themes/hugo-bootstrap-bare b/themes/hugo-bootstrap-bare
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index 0000000..d552655
--- /dev/null
+++ b/themes/hugo-bootstrap-bare
@@ -0,0 +1 @@
+Subproject commit d552655ad5693160475d9390d3465e6b83756f77
diff --git a/themes/hugo-darktable-docs-theme b/themes/hugo-darktable-docs-theme
new file mode 160000
index 0000000..d296d5d
--- /dev/null
+++ b/themes/hugo-darktable-docs-theme
@@ -0,0 +1 @@
+Subproject commit d296d5d99273c88d7a6b05a5ccc8a1a5463b2674
diff --git a/themes/hugo-pdf-theme b/themes/hugo-pdf-theme
new file mode 160000
index 0000000..9e213cf
--- /dev/null
+++ b/themes/hugo-pdf-theme
@@ -0,0 +1 @@
+Subproject commit 9e213cf0af315f8a8585aea9ca08168393c708f4