diff --git a/XmacsLabs/X202305.tm b/XmacsLabs/X202305.tm
index 9b04966..c4bfc04 100644
--- a/XmacsLabs/X202305.tm
+++ b/XmacsLabs/X202305.tm
@@ -3,12 +3,191 @@
 <style|<tuple|seminar|comment>>
 
 <\body>
+  <\hide-preamble>
+    \;
+
+    <assign|x_0|<macro|<math|x<rsub|0>>>>
+
+    <assign|x_1|<macro|<math|x<rsub|1>>>>
+  </hide-preamble>
+
   <doc-data|<doc-title|Seminar X202305>|<doc-author|<author-data|<author-name|Darcy
   Shen>>>>
 
   <section|Welcome>
 
-  <section|Topic>
+  v1.1.2 Thanks to Issues Writers.
+
+  <section|Topic: Summer of Code>
+
+  <subsection|Todo List of Summer of Code>
+
+  <\itemize>
+    <item><todo|Re-create Logo in SVG format> by BadVortex
+
+    <item><todo|admin@xmacs.net> by Da
+
+    <item>Sync about Summer of Code with the TeXmacs developer/forum by Da
+
+    <item><todo|Community Video> by the Community
+  </itemize>
+
+  <subsection|Projects of SoC>
+
+  <\itemize>
+    <item>学生想做什么（社区讨论）
+
+    <\itemize>
+      <item>排版引擎支持图文混排
+
+      <\itemize>
+        <item>Scala重新实现
+
+        <item>表格很多问题
+
+        <item><LaTeX>里面有这个功能
+      </itemize>
+
+      <item>Scala重新实现排版引擎
+
+      <tree|TM|<tree|Tree|<tree|Box|PDF>|HTML>>
+
+      <\itemize>
+        <item>不涉及Scheme引擎的部分（Kawa/Clojure)
+
+        <item>TM -\<gtr\> Tree
+      </itemize>
+
+      <\itemize>
+        <item>TM -\<gtr\> Tree -\<gtr\> Box -\<gtr\> PDF（Hard）
+
+        <item>TM -\<gtr\> PS
+
+        <item>(TM -\<gtr\> Render)
+
+        <item>TM -\<gtr\> Tree -\<gtr\> HTML（Easy）
+
+        <item>TM -\<gtr\> DOCX
+
+        <item>TM -\<gtr\> EPUB
+
+        <item>TM -\<gtr\> PPT
+      </itemize>
+    </itemize>
+
+    <item>社区需要什么
+
+    <\itemize>
+      <item><hlink|改善墨干的绘图工具|<hlink|Issues \<centerdot\>
+      墨客实验室/墨干编辑器 - Gitee.com|https://gitee.com/XmacsLabs/mogan/issues?label_ids=179083549&label_text=%E7%BB%98%E5%9B%BE>>
+
+      <item>教育相关模版（有一些模版目前无法直接制作，需要代码提供支持）
+
+      <\itemize>
+        <item>本硕博论文模版
+
+        <item>幻灯片模版
+
+        <item>适用于线上授课的模版
+      </itemize>
+
+      <item>更好用快捷键编辑器（不需要Scheme）
+    </itemize>
+  </itemize>
+
+  <subsection|XmacsLabs member>
+
+  门槛
+
+  <\itemize>
+    <item>Who creates pull requests
+
+    <item>Law/Language
+  </itemize>
+
+  权利
+
+  <\itemize>
+    <item>Vote
+  </itemize>
+
+  <\question>
+    Who can vote?
+  </question>
+
+  Members of XmacsLabs can vote.
+
+  <\question>
+    How to join the lab?
+  </question>
+
+  <\itemize>
+    <item>(Join the video meeting) 自己申请
+
+    <item>Vote to add new member
+  </itemize>
+
+  <\itemize>
+    <item>实验室成员可以是匿名的
+
+    <item>不用每次都参加视频会议
+  </itemize>
+
+  <\question>
+    How to vote?
+  </question>
+
+  10个正式成员（每个成员都会提交pull request）
+
+  异步协作
+
+  \;
+
+  <\itemize>
+    <item>依据事项不同，投票的机制不同
+
+    <unfolded-comment|+1ZmOHbA21AVvmY03|+1ZmOHbA21AVvmY04|comment|jk|1680440233||新成员加入适当放宽>
+
+    <item>是否和开源社区理事会有点像？
+
+    探索阶段
+
+    <item>XmacsLabs
+
+    <\itemize>
+      <item>Developer (Mogan)
+
+      <\itemize>
+        <item>PMC Member
+
+        <item>Developer
+      </itemize>
+
+      <item>non-Developer
+
+      <\itemize>
+        <item>Planet (discuss)
+
+        <item>Wiki (goal)
+      </itemize>
+    </itemize>
+
+    <item>Debian Community
+
+    <\itemize>
+      <item>Debian Maintainer
+
+      <item>Debian Developer
+
+      <item>Debian Leader
+    </itemize>
+  </itemize>
+
+  \;
+
+  \;
+
+  \;
 </body>
 
 <\initial>
@@ -20,16 +199,11 @@
 
 <\references>
   <\collection>
-    <associate|auto-1|<tuple|1|2|X202303.tm>>
-    <associate|auto-10|<tuple|3|4|X202303.tm>>
-    <associate|auto-2|<tuple|2|2|X202303.tm>>
-    <associate|auto-3|<tuple|2.1|2|X202303.tm>>
-    <associate|auto-4|<tuple|2.2|2|X202303.tm>>
-    <associate|auto-5|<tuple|2.3|3|X202303.tm>>
-    <associate|auto-6|<tuple|2.4|3|X202303.tm>>
-    <associate|auto-7|<tuple|2.5|4|X202303.tm>>
-    <associate|auto-8|<tuple|2.6|4|X202303.tm>>
-    <associate|auto-9|<tuple|2.7|4|X202303.tm>>
+    <associate|auto-1|<tuple|1|2>>
+    <associate|auto-2|<tuple|2|2>>
+    <associate|auto-3|<tuple|2.1|2>>
+    <associate|auto-4|<tuple|2.2|2>>
+    <associate|auto-5|<tuple|2.3|4>>
   </collection>
 </references>
 
@@ -41,41 +215,20 @@
       <no-break><pageref|auto-1><vspace|0.5fn>
 
       <vspace*|1fn><with|font-series|<quote|bold>|math-font-series|<quote|bold>|2<space|2spc>Topic:
-      How to create a pull request in Gitee?>
-      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      Summer of Code> <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
       <no-break><pageref|auto-2><vspace|0.5fn>
 
-      <with|par-left|<quote|1tab>|2.1<space|2spc>Some simple preparations
+      <with|par-left|<quote|1tab>|2.1<space|2spc>Todo List of Summer of Code
       <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
       <no-break><pageref|auto-3>>
 
-      <with|par-left|<quote|1tab>|2.2<space|2spc>Generate and add SSH public
-      key <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
+      <with|par-left|<quote|1tab>|2.2<space|2spc>Projects of SoC
+      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
       <no-break><pageref|auto-4>>
 
-      <with|par-left|<quote|1tab>|2.3<space|2spc>Git clone
+      <with|par-left|<quote|1tab>|2.3<space|2spc>XmacsLabs member
       <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
       <no-break><pageref|auto-5>>
-
-      <with|par-left|<quote|1tab>|2.4<space|2spc>Git add
-      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
-      <no-break><pageref|auto-6>>
-
-      <with|par-left|<quote|1tab>|2.5<space|2spc>Git config
-      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
-      <no-break><pageref|auto-7>>
-
-      <with|par-left|<quote|1tab>|2.6<space|2spc>Git commit
-      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
-      <no-break><pageref|auto-8>>
-
-      <with|par-left|<quote|1tab>|2.7<space|2spc>Git push
-      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
-      <no-break><pageref|auto-9>>
-
-      <vspace*|1fn><with|font-series|<quote|bold>|math-font-series|<quote|bold>|3<space|2spc>Topic:
-      to purchase a Loongson laptop> <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
-      <no-break><pageref|auto-10><vspace|0.5fn>
     </associate>
   </collection>
 </auxiliary>
\ No newline at end of file