diff --git a/.gitmodules b/.gitmodules
index 6f74db19d7262b7ce813bc05ec5df490be89d996..0906182aa66665cdfa8a473655125b61e90667ad 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -22,3 +22,6 @@
 [submodule "pseudowalls"]
 	path = pseudowalls
 	url = https://gitlab.com/pseudowalls/pseudowalls.git
+[submodule "subprojects/fmt-prelims"]
+	path = subprojects/fmt-prelims
+	url = git@git.ecdf.ed.ac.uk:personal-latex-documents/research/fourier-mukai-transform-preliminaries.git
diff --git a/subprojects/fmt-prelims b/subprojects/fmt-prelims
new file mode 160000
index 0000000000000000000000000000000000000000..e013642c6fdd3c8abf11e179c394c651516fd491
--- /dev/null
+++ b/subprojects/fmt-prelims
@@ -0,0 +1 @@
+Subproject commit e013642c6fdd3c8abf11e179c394c651516fd491