diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
deleted file mode 100644
index 618ca4d..0000000
--- a/.github/workflows/main.yml
+++ /dev/null
@@ -1,32 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-jobs:
-  build:
-    name: Deploy gh-pages
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-      pull-requests: write
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          submodules: 'recursive'
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-      - name: install mdbook
-        run: (test -x $HOME/.cargo/bin/mdbook || cargo install mdbook)
-      - name: build and test
-        run: mdbook build
-      - name: publish
-        if:   github.event_name == 'push' && github.ref == 'refs/heads/main' && github.repository_owner == 'eunomia-bpf'
-        uses: JamesIves/github-pages-deploy-action@v4.4.1
-        with:
-          branch: gh-pages
-          folder: book
diff --git a/.github/workflows/test-libbpf.yml b/.github/workflows/test-libbpf.yml
index e567b3e..af7a834 100644
--- a/.github/workflows/test-libbpf.yml
+++ b/.github/workflows/test-libbpf.yml
@@ -84,4 +84,7 @@ jobs:
 
     - name: test 44
       run: |
-          make -C src/43-kfuncs
+          make -C src/44-scx-simple
+    - name: test 45
+      run: |
+          make -C src/45-scx-nest
diff --git a/README.md b/README.md
index 2fa1315..55e8253 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # eBPF Developer Tutorial: Learning eBPF Step by Step with Examples
 
-[![CI](https://github.com/eunomia-bpf/bpf-developer-tutorial/actions/workflows/main.yml/badge.svg)](https://github.com/eunomia-bpf/bpf-developer-tutorial/actions/workflows/main.yml)
+[![Test run](https://github.com/eunomia-bpf/bpf-developer-tutorial/actions/workflows/main.yml/badge.svg)](https://github.com/eunomia-bpf/bpf-developer-tutorial/actions/workflows/test-libbpf.yml)
 [![Test and trigger downstream tutorial sync](https://github.com/eunomia-bpf/bpf-developer-tutorial/actions/workflows/trigger-sync.yml/badge.svg)](https://github.com/eunomia-bpf/bpf-developer-tutorial/actions/workflows/trigger-sync.yml)
 
 [GitHub](https://github.com/eunomia-bpf/bpf-developer-tutorial)
diff --git a/README.zh.md b/README.zh.md
index c9ad69f..b9a634d 100644
--- a/README.zh.md
+++ b/README.zh.md
@@ -1,6 +1,6 @@
 # eBPF 开发者教程与知识库：eBPF Tutorial by Example
 
-[![CI](https://github.com/eunomia-bpf/bpf-developer-tutorial/actions/workflows/main.yml/badge.svg)](https://github.com/eunomia-bpf/bpf-developer-tutorial/actions/workflows/main.yml)
+[![Test run](https://github.com/eunomia-bpf/bpf-developer-tutorial/actions/workflows/main.yml/badge.svg)](https://github.com/eunomia-bpf/bpf-developer-tutorial/actions/workflows/test-libbpf.yml)
 
 [GitHub](https://github.com/eunomia-bpf/bpf-developer-tutorial)
 [Gitee 镜像](https://gitee.com/yunwei37/bpf-developer-tutorial)
diff --git a/book.toml b/book.toml
deleted file mode 100644
index 432b20f..0000000
--- a/book.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[book]
-authors = ["eunomia-bpf"]
-language = "en"
-multilingual = false
-src = "src"
-title = "bpf-developer-tutorial"