diff --git a/Scripts/capturer.py b/Scripts/capturer.py
index 7cbdee1d..2124f42d 100755
--- a/Scripts/capturer.py
+++ b/Scripts/capturer.py
@@ -7,14 +7,17 @@
 from asyncio.subprocess import DEVNULL, PIPE, STDOUT
 from dataclasses import dataclass
 
-import psutil
-
 if sys.version_info[0] != 3 or sys.version_info[1] < 6:
     print(
         "This script requires Python version 3.7 and later. Please upgrade your Python version to grade this lab."
     )
     sys.exit(0)
 
+try:
+    import psutil
+except ImportError:
+    print("This script requires PsUtil as main dependencies. Please install this module first.")
+    sys.exit(255)
 
 @dataclass
 class LineCapture:
diff --git a/Scripts/extras/lab5.mk b/Scripts/extras/lab5.mk
index e134ce3e..5fb741f2 100644
--- a/Scripts/extras/lab5.mk
+++ b/Scripts/extras/lab5.mk
@@ -51,6 +51,6 @@ gdb:
 
 grade:
 	$(MAKE) distclean
-	$(Q)$(GRADER)
+	$(Q)$(DOCKER_RUN) $(GRADER) -t $(TIMEOUT) -f $(LABDIR)/scores.json -s $(SERIAL) make SERIAL=$(SERIAL) qemu-grade
 
 .PHONY: qemu qemu-gdb gdb defconfig build clean distclean grade all
diff --git a/Scripts/kernel.mk b/Scripts/kernel.mk
index bfe78c49..e4e6fe59 100644
--- a/Scripts/kernel.mk
+++ b/Scripts/kernel.mk
@@ -50,6 +50,6 @@ gdb:
 
 grade:
 	$(MAKE) distclean
-	$(Q)$(GRADER) -t $(TIMEOUT) -f $(LABDIR)/scores.json -s $(SERIAL) make SERIAL=$(SERIAL) qemu-grade
+	$(Q)$(DOCKER_RUN) $(GRADER) -t $(TIMEOUT) -f $(LABDIR)/scores.json -s $(SERIAL) make SERIAL=$(SERIAL) qemu-grade
 
 .PHONY: qemu qemu-gdb gdb defconfig build clean distclean grade all
diff --git a/Scripts/lab.mk b/Scripts/lab.mk
index bdc429f8..e3d6bea0 100644
--- a/Scripts/lab.mk
+++ b/Scripts/lab.mk
@@ -24,6 +24,22 @@ include $(SCRIPTS)/env_generated.mk
 
 # Toolchain configuration
 GDB ?= gdb
+DOCKER ?= docker
+DOCKER_IMAGE ?= ipads/oslab:24.09
+ifeq (,$(wildcard /docker.env))
+DOCKER_RUN ?= 
+else
+DOCKER_RUN ?= $(DOCKER) run -it --rm \
+		-e SCRIPTS=$(SCRIPTS) \
+		-e LABROOT=$(LABROOT) \
+		-e LABDIR=$(LABDIR) \
+		-e TIMEOUT=$(TIMEOUT) \
+		-e LAB=$(LAB) \
+		-u $(shell id -u $(USER)):$(shell id -g $(USER)) \
+		-v $(LABROOT):$(LABROOT) -w $(CURDIR) \
+		--security-opt=seccomp:unconfined \
+		ipads/oslab:24.09
+endif
 QEMU-SYS ?= qemu-system-aarch64
 QEMU-USER ?= qemu-aarch64
 
diff --git a/Scripts/submit.mk b/Scripts/submit.mk
index febb8bfd..c0f292f0 100644
--- a/Scripts/submit.mk
+++ b/Scripts/submit.mk
@@ -1,5 +1,8 @@
 include $(CURDIR)/filelist.mk
 
+FILES := $(FILES) $(shell find -name "*.pdf" \
+		 -o -name "*.doc" \
+		 -o -name "*.docx")
 submit:
 	$(Q)tar -czf lab$(LAB).tar.gz $(FILES) | :
 	$(Q)echo "  Submit Lab$(LAB)"