diff --git a/nontech/ortho/people/mazhuko.txt b/nontech/ortho/people/mazhuko.txt
index f18dce09e..01cc01cf6 100644
--- a/nontech/ortho/people/mazhuko.txt
+++ b/nontech/ortho/people/mazhuko.txt
@@ -22,6 +22,8 @@ people
     ! his students - S.S Averintsev, V Bibihin
 
 2025
+Mazhuko - Ready Formulas of 14:29
+    https://www.youtube.com/watch?v=Yqf-cbUNALk
 Mazhuko - Yavlenie Tsarstviya Nebesnogo of 18:01
     https://www.youtube.com/watch?v=PpYSZXqj7II
 Mazhuko - Sins of Fathers of 18:51
diff --git a/os/linux/immutable/docs/presentations.txt b/os/linux/immutable/docs/presentations.txt
new file mode 100644
index 000000000..af4d06756
--- /dev/null
+++ b/os/linux/immutable/docs/presentations.txt
@@ -0,0 +1,4 @@
+2023
+Zaney - Who Are Immutable Linux Distros For? of 7:37
+    https://www.youtube.com/watch?v=r9lWv64cZ-I
+    https://itsfoss.com/immutable-linux-distros/