diff --git a/.gitea/workflows/compile.yml b/.gitea/workflows/compile.yml
new file mode 100644
index 0000000..b17f707
--- /dev/null
+++ b/.gitea/workflows/compile.yml
@@ -0,0 +1,25 @@
+name: build pdf
+on: push
+
+jobs:
+  build:
+    runs-on: macos
+
+    steps:
+      - name: Check out the repository
+        uses: http://localhost:3000/sxlxc/checkout@v4
+
+      - name: Compile LaTeX using local TeX Live
+        run: |
+          echo "Compiling document..."
+          latexmk -pdf main.tex
+
+      - uses: http://localhost:3000/sxlxc/gitea-release-action@v1
+        with:
+          body: ''
+          prerelease: true
+          name: PDF
+          token: ${{ secrets.RELEASE_TOKEN }}
+          tag_name: latest
+          files: |-
+            ./*.pdf
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 5cef906..5a90523 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 
 .vscode/
 *.sage.py
+./*.pdf
 ## Core latex/pdflatex auxiliary files:
 *.aux
 *.lof
diff --git a/.latexmkrc b/.latexmkrc
deleted file mode 100644
index d78de37..0000000
--- a/.latexmkrc
+++ /dev/null
@@ -1 +0,0 @@
-$pdflatex=q/xelatex -synctex=1 %O %S/
\ No newline at end of file
diff --git a/main.pdf b/main.pdf
deleted file mode 100644
index 4f36214..0000000
Binary files a/main.pdf and /dev/null differ
diff --git a/main.tex b/main.tex
index f3d0e10..62386ec 100644
--- a/main.tex
+++ b/main.tex
@@ -1,5 +1,5 @@
 \documentclass[12pt]{article}
-\usepackage[sans]{myctex}
+\usepackage{chao}
 
 
 \geometry{a4paper,margin=2cm}