diff --git a/.gitmodules b/.gitmodules
index 70519e6..71e71c6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,6 +7,9 @@
 [submodule "company-anaconda"]
 	path = borg/company-anaconda
 	url = https://github.com/pythonic-emacs/company-anaconda
+[submodule "cython-mode"]
+	path = borg/cython-mode
+	url = https://github.com/cython/emacs-cython-mode
 [submodule "dash"]
 	path = borg/dash
 	url = https://github.com/magnars/dash.el
@@ -22,6 +25,9 @@
 [submodule "s"]
 	path = borg/s
 	url = https://github.com/magnars/s.el
+[submodule "straight"]
+	path = borg/straight
+	url = https://github.com/radian-software/straight.el
 [submodule "use-package"]
 	path = borg/use-package
 	url = https://github.com/jwiegley/use-package
diff --git a/borg/cython-mode b/borg/cython-mode
new file mode 160000
index 0000000..3e47905
--- /dev/null
+++ b/borg/cython-mode
@@ -0,0 +1 @@
+Subproject commit 3e4790559d3168fe992cf2aa62f01423038cedb5