diff --git a/.gitmodules b/.gitmodules
index c9aa5e2..e27e86a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "epub"]
 	path = epub
 	url = https://github.com/geek1011/ePubViewer
+[submodule "aperturescience"]
+	path = aperturescience
+	url = https://github.com/xBytez/aperturescience.git
diff --git a/aperturescience b/aperturescience
new file mode 160000
index 0000000..db74457
--- /dev/null
+++ b/aperturescience
@@ -0,0 +1 @@
+Subproject commit db744576d3a729a55497ad01e65b0e373fd78c8b
diff --git a/index.md b/index.md
index f969e9c..b3e8739 100644
--- a/index.md
+++ b/index.md
@@ -15,3 +15,7 @@
 [unixporn](reads/unixporn)
 
 [zach resources](reads/zachs-resources)
+
+[portal](aperturescience/portal)
+
+[portal2](aperturescience/portal2)