diff --git a/Dockerfile b/Dockerfile
index d7c29c7..077ee2a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ RUN sed -i s@/deb.debian.org/@/mirrors.tuna.tsinghua.edu.cn/@g /etc/apt/sources.
     useradd -u 1000 -ms /bin/bash tt && \
     useradd -u 1001 -ms /bin/bash student && \
     usermod -aG student tt && \
-    echo "student ALL=(tt) NOPASSWD:SETENV:/usr/local/bin/joj3\ntt ALL=(student) NOPASSWD:SETENV:ALL" > /etc/sudoers.d/joj
+    echo "student ALL=(tt) NOPASSWD:SETENV:/usr/local/bin/joj3,/usr/local/bin/joj3-forge-convert\ntt ALL=(student) NOPASSWD:SETENV:ALL" > /etc/sudoers.d/joj
 
 # install joint-teapot && joj3-forge
 # TODO: change it to FOCS gitea mirror for deployment
@@ -19,8 +19,8 @@ RUN pip install --no-cache-dir --break-system-packages \
     git+https://ghfast.top/https://github.com/BoYanZh/Joint-Teapot \
     git+https://ghfast.top/https://github.com/joint-online-judge/JOJ3-config-generator
 
-# install joj3 & repo-health-checker
-COPY bin/joj3 bin/repo-health-checker /usr/local/bin/
+# install joj3 & repo-health-checker & joj3-forge-convert
+COPY bin/joj3 bin/repo-health-checker bin/joj3-forge-convert /usr/local/bin/
 
 USER student
 WORKDIR /home/student
diff --git a/Makefile b/Makefile
index 2223f38..5d9ffc1 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ prepare:
 	$(MAKE) -C JOJ3
 	cp JOJ3/build/joj3 JOJ3/build/repo-health-checker bin/
 	ls -lha bin
-	upx --best bin/*
+	upx --best bin/joj3 bin/repo-health-checker
 	ls -lha bin
 
 force-build: prepare
diff --git a/bin/.gitkeep b/bin/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/bin/joj3-forge-convert b/bin/joj3-forge-convert
new file mode 100755
index 0000000..ff3071c
--- /dev/null
+++ b/bin/joj3-forge-convert
@@ -0,0 +1,3 @@
+#!/usr/bin/bash
+set -e
+joj3-forge convert /home/tt/.config/joj