diff --git a/css/main.css b/css/main.css
index d0be0a0..93fcadc 100644
--- a/css/main.css
+++ b/css/main.css
@@ -1,6 +1,14 @@
 /* 
 https://github.com/rgb-24bit/org-html-theme-list org-joshua
 */
+
+@font-face{ /* FROM isopenbsdsecu.re */
+    font-family: miriam libre;
+    font-display: auto;
+    src: url(https://cdn.jsdelivr.net/npm/@fontsource/miriam-libre/files/miriam-libre-all-400-normal.woff) format('woff');
+    font-style: normal;
+}
+
 @media all
 {
     body {
@@ -16,7 +24,7 @@ https://github.com/rgb-24bit/org-html-theme-list org-joshua
     }
     body .title {
         margin-left: 0;
-        font-family: Trebuchet;
+        font-family: Miriam Libre,serif;
     }
 
     #org-div-home-and-up{
diff --git a/gmi/gopher_collections.gmi b/gmi/collections.gmi
similarity index 100%
rename from gmi/gopher_collections.gmi
rename to gmi/collections.gmi
diff --git a/gmi/shit_7net.gmi b/gmi/shit_7net.gmi
new file mode 100644
index 0000000..2a590da
--- /dev/null
+++ b/gmi/shit_7net.gmi
@@ -0,0 +1,24 @@
+# 七天学伴是个什么鬼
+
+班级群里说要用 "七天学伴" 交作业
+别用! 别用! 别用!
+
+我的第一反应就是上半年学习通那个事件[^1]:
+全国一亿多学生, 十分之一的中国公民的信息! 都被泄露了, 在社工库上被贩卖!
+
+这个软件我一看就和学习通特别像, 危险!
+
+我搜了一下, "官方" 的只有 IOS 版(长眼睛的去看看评论)[^2],
+然后就是各种 "p2p下载站", 那些安卓端的家长必然有不少又要受害了!
+
+甚至官网上都没有明显的下载链接, 这么不成熟一软件, 校方直接采用, 土鳖!
+
+多少个软件了! 钉钉, 微信, 腾讯会议, 还来?
+恭喜你安了4个 Chromium!
+
+我真的想要呐喊: 别用! 别用! 别用! 垃圾软件! 无良商家!
+可我这个异端又能阻止得了什么呢?
+
+
+=> https://piaogewala.ga [1]
+=> https://apps.apple.com/cn/app/七天学伴/id1499983860 [2]
diff --git a/index.html b/index.html
index 33b128c..06e6a3f 100644
--- a/index.html
+++ b/index.html
@@ -12,13 +12,13 @@
  *::-webkit-scrollbar{width:auto}
  *::-webkit-scrollbar-track{background:#404040}
  *::-webkit-scrollbar-thumb{background:gray}
- body{background-color:#3B4252;color:#dcdccc;font-family:dejavu sans mono,monospace;font-size:16px;padding:5em 0 0;margin:0}
+ body{background-color:#3B4252;color:#dcdccc;font-family:dejavu sans mono,Lucida Console,Courier,monospace;font-size:16px;padding:5em 0 0;margin:0}
  a{color:#efdcbc;text-decoration:none}
  a:visited{color:#dca3a3}
  a:hover{color:#f8f893}
  .home{position:absolute;width:100%;text-align:center}
  .home pre{max-width:80ch;padding:0 1rem;margin-left:auto;margin-right:auto;line-height:1.5em;overflow:auto;display:inline-block;text-align:left}
- pre{font-family:dejavu sans mono,monospace;margin:1rem}
+ pre{font-family:inherit;margin:1rem}
  #quote{color:#66ccff;font-style:italic;text-align:center}
  #comment{color:grey;font-style:italic}
  body,#normal{color:#dcdccc}
diff --git a/org/cheatsheet.org b/org/cheatsheet.org
index 99e4c64..46f97c3 100644
--- a/org/cheatsheet.org
+++ b/org/cheatsheet.org
@@ -95,3 +95,8 @@ git show :1:file  # 1common 2ours 3theirs
 | M-Left/Right | jump world, or prevd/nextd |
 | M-s          | sudo the last command      |
 | M-w          | what is this               |
+
+* ffmpeg
+#+BEGIN_SRC shell
+ffmpeg -hwaccel qsv -i IN -ss 5:00 -t 30:00 -s 720x480 -r 30 -an -threads 2 OUT
+#+END_SRC
diff --git a/posts.md b/posts.md
index 9d65554..fe24c19 100644
--- a/posts.md
+++ b/posts.md
@@ -1,5 +1,6 @@
 ## Table of Contents
 ### Posts (sorted by time)
+- [七天学伴是个什么鬼](shit_7net.gmi.txt)<br>
 - [狗日的腾讯会议](damn_tencent_meeting)<br>
 上网课有感而发
 - [New Blog Architecture](new_blog_arch)<br>
@@ -25,7 +26,7 @@ any kind of contribution is welcome
 - [<font color=red>大概是语文知识整理</font>](digua-YW)<br>
 Big project
 - [Gopher/Gemini reactions](re.gmi.txt)<br>
-- [Gopher/Gemini collections, a quiet web](gopher_collections.gmi.txt)<br>
+- [Gopher/Gemini collections, a quiet web](collections.gmi.txt)<br>
 - [Random Ideas](ideas)<br>
 画大饼
 - [折腾 sway 的一些记录(problem&solution)](wayland)<br>