diff --git a/.gitmodules b/.gitmodules
index b4894f1..2c4abcc 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,9 @@
 [submodule "cs4212/week-02-x86lite"]
 	path = cs4212/week-02-x86lite
 	url = https://github.com/cs4212/week-02-x86lite
+[submodule "cs4212/hw2-x86lite-flavour-town"]
+	path = cs4212/hw2-x86lite-flavour-town
+	url = https://github.com/cs4212/week-02-x86lite
+[submodule "cs4212/hw3-llvmlite-flavourtown"]
+	path = cs4212/hw3-llvmlite-flavourtown
+	url = https://github.com/cs4212/hw3-llvmlite-flavourtown
diff --git a/cs4212/hw2-x86lite-flavour-town b/cs4212/hw2-x86lite-flavour-town
new file mode 160000
index 0000000..b312ce6
--- /dev/null
+++ b/cs4212/hw2-x86lite-flavour-town
@@ -0,0 +1 @@
+Subproject commit b312ce6ef2ba8cbd4bd14d0f4c87411307e83b6b
diff --git a/cs4212/hw3-llvmlite-flavourtown b/cs4212/hw3-llvmlite-flavourtown
new file mode 160000
index 0000000..b0efc2f
--- /dev/null
+++ b/cs4212/hw3-llvmlite-flavourtown
@@ -0,0 +1 @@
+Subproject commit b0efc2f6f1fb6a107aace155e1fb6a1b2fa3f729
diff --git a/cs4212/week-01-simple-2025 b/cs4212/week-01-simple-2025
index 9ef6c44..6e675d6 160000
--- a/cs4212/week-01-simple-2025
+++ b/cs4212/week-01-simple-2025
@@ -1 +1 @@
-Subproject commit 9ef6c4412425b9b537139ba7a5b1aada9a307896
+Subproject commit 6e675d68c688f74b6cba5d4fd127058a52af6a59
diff --git a/cs4212/week-03-ir-2025 b/cs4212/week-03-ir-2025
new file mode 160000
index 0000000..c5c64ad
--- /dev/null
+++ b/cs4212/week-03-ir-2025
@@ -0,0 +1 @@
+Subproject commit c5c64adb55a8998d62bec1a65802f647e13a5f3a