diff --git a/etc/init.shy b/etc/init.shy
index bd9c560c..41eba688 100644
--- a/etc/init.shy
+++ b/etc/init.shy
@@ -68,3 +68,5 @@
     target web.chat.meet.miss
     target web.chat.lark.msg
 
+    target web.code.install
+
diff --git a/src/main.shy b/src/main.shy
index 8f5e54bb..18bfa51b 100644
--- a/src/main.shy
+++ b/src/main.shy
@@ -1,4 +1,5 @@
 title "contexts"
+premenu
 
 chapter "实践"
 label "实践" `
@@ -19,4 +20,44 @@ volcanos icebergs intshell
 learning toolkits contexts
 ` stroke red fill black
 
+chapter "logo"
+refer `
+艺术字 http://www.akuziti.com/
+`
+
+chapter "Tech"
+field webpack web.code.webpack
+field binpack web.code.binpack
+field modpack web.code.modpack
+
+
+chapter "Raft"
+refer `
+官网 https://raft.github.io/
+`
+
+chapter "Ceph"
+refer `
+官网 https://docs.ceph.com/docs/master/
+源码 https://github.com/ceph/ceph
+简介 https://blog.csdn.net/mingongge/article/details/100788388
+`
+
+chapter "Ledis"
+refer `
+源码 https://github.com/ledisdb/ledisdb
+`
+
+chapter "Dragonboat"
+refer `
+源码 https://github.com/lni/dragonboat
+`
+
+chapter "SuperVisor"
+refer `
+官网 http://supervisord.org/
+源码 https://github.com/Supervisor/supervisor
+`
+
+source usr/icebergs/misc/es/es.shy