diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000000..1050d4d06d370
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,58 @@
+[submodule "auth/emailadmin"]
+	path = auth/emailadmin
+	url = https://github.com/hrimhari/moodle-auth_emailadmin
+	branch = master
+	tag = 1.4.6
+[submodule "blocks/completion_progress"]
+	path = blocks/completion_progress
+	url = https://github.com/jonof/moodle-block_completion_progress
+	branch = master
+	tag = 2023063000
+[submodule "course/format/onetopic"]
+	path = course/format/onetopic
+	url = https://github.com/davidherney/moodle-format_onetopic
+	branch = master
+	tag = v4.1.05
+[submodule "enrol/coursecompleted"]
+	path = enrol/coursecompleted
+	url = https://github.com/ewallah/moodle-enrol_coursecompleted
+	branch = main
+	tag = v4.0.9
+[submodule "enrol/easy"]
+	path = enrol/easy
+	url = https://github.com/dbnschools/moodle-enrol_easy
+	branch = master
+[submodule "local/profilecohort"]
+	path = local/profilecohort
+	url = https://github.com/moodle-an-hochschulen/moodle-local_profilecohort
+	branch = MOODLE_401_STABLE
+	tag = v4.1-r2
+[submodule "mod/customcert"]
+	path = mod/customcert
+	url = https://github.com/mdjnelson/moodle-mod_customcert
+	branch = MOODLE_401_STABLE
+	tag = v4.1.1
+[submodule "mod/facetoface"]
+	path = mod/facetoface
+	url = https://github.com/catalyst/moodle-mod_facetoface
+	branch = MOODLE_400_STABLE
+[submodule "mod/questionnaire"]
+	path = mod/questionnaire
+	url = https://github.com/PoetOS/moodle-mod_questionnaire
+	branch = MOODLE_401_STABLE
+[submodule "report/coursestats"]
+	path = report/coursestats
+	url = https://github.com/dired-ufla/coursestats
+	branch = master
+[submodule "user/profile/field/associated"]
+	path = user/profile/field/associated
+	url = https://github.com/rezaies/moodle-profilefield_associated
+	branch = master
+[submodule "user/profile/field/conditional"]
+	path = user/profile/field/conditional
+	url = https://github.com/rezaies/moodle-profilefield_conditional
+	branch = master
+[submodule "user/profile/field/multiselect"]
+	path = user/profile/field/multiselect
+	url = https://github.com/nitinwaves/moodle-profilefield_multiselect
+	branch = master
diff --git a/auth/emailadmin b/auth/emailadmin
new file mode 160000
index 0000000000000..919e0354121df
--- /dev/null
+++ b/auth/emailadmin
@@ -0,0 +1 @@
+Subproject commit 919e0354121dff0eb1dcd5bc8c89d50811508d86
diff --git a/blocks/completion_progress b/blocks/completion_progress
new file mode 160000
index 0000000000000..4458bc8959bbb
--- /dev/null
+++ b/blocks/completion_progress
@@ -0,0 +1 @@
+Subproject commit 4458bc8959bbbcedc80da5b60c87d1a6e72ac1ea
diff --git a/course/format/onetopic b/course/format/onetopic
new file mode 160000
index 0000000000000..b4f25e29a50e3
--- /dev/null
+++ b/course/format/onetopic
@@ -0,0 +1 @@
+Subproject commit b4f25e29a50e38c1b3249945afc708074c35b544
diff --git a/enrol/coursecompleted b/enrol/coursecompleted
new file mode 160000
index 0000000000000..6c570652a9d2d
--- /dev/null
+++ b/enrol/coursecompleted
@@ -0,0 +1 @@
+Subproject commit 6c570652a9d2d727f96a62648bdeaa59f5dcfb61
diff --git a/enrol/easy b/enrol/easy
new file mode 160000
index 0000000000000..a97f8441f08a9
--- /dev/null
+++ b/enrol/easy
@@ -0,0 +1 @@
+Subproject commit a97f8441f08a95dc3461fb8d44ccf08398c3b61e
diff --git a/local/profilecohort b/local/profilecohort
new file mode 160000
index 0000000000000..82bc2160104cf
--- /dev/null
+++ b/local/profilecohort
@@ -0,0 +1 @@
+Subproject commit 82bc2160104cff787c7eaac1d8c9295fa9ca0aea
diff --git a/mod/customcert b/mod/customcert
new file mode 160000
index 0000000000000..7e1cea9cbd0d3
--- /dev/null
+++ b/mod/customcert
@@ -0,0 +1 @@
+Subproject commit 7e1cea9cbd0d33912ed621b8833e680f3fa9c8fa
diff --git a/mod/facetoface b/mod/facetoface
new file mode 160000
index 0000000000000..10d6966c09620
--- /dev/null
+++ b/mod/facetoface
@@ -0,0 +1 @@
+Subproject commit 10d6966c09620d76749bf3ca0f4a6245923808bb
diff --git a/mod/questionnaire b/mod/questionnaire
new file mode 160000
index 0000000000000..04023c231dd9c
--- /dev/null
+++ b/mod/questionnaire
@@ -0,0 +1 @@
+Subproject commit 04023c231dd9c55e6c19d46d19144343b51fc2bc
diff --git a/report/coursestats b/report/coursestats
new file mode 160000
index 0000000000000..82b4ee93cd633
--- /dev/null
+++ b/report/coursestats
@@ -0,0 +1 @@
+Subproject commit 82b4ee93cd6332b400cb024084e9eed584b7cd00
diff --git a/user/profile/field/associated b/user/profile/field/associated
new file mode 160000
index 0000000000000..6d481fa30ea62
--- /dev/null
+++ b/user/profile/field/associated
@@ -0,0 +1 @@
+Subproject commit 6d481fa30ea62500c47b81f875dcf9010a3c97a3
diff --git a/user/profile/field/conditional b/user/profile/field/conditional
new file mode 160000
index 0000000000000..ff92db6002973
--- /dev/null
+++ b/user/profile/field/conditional
@@ -0,0 +1 @@
+Subproject commit ff92db600297312ef31fc2b7d0f464e903fa9898
diff --git a/user/profile/field/multiselect b/user/profile/field/multiselect
new file mode 160000
index 0000000000000..4fa306e3a240e
--- /dev/null
+++ b/user/profile/field/multiselect
@@ -0,0 +1 @@
+Subproject commit 4fa306e3a240ebd647b309d1c9f4efca8ff5375c