diff --git a/content/about.md b/content/about.md
index f416d94..ff9f4b5 100644
--- a/content/about.md
+++ b/content/about.md
@@ -40,4 +40,4 @@ These are all existing recordings of some of my talks and presentations, most of
 - [Jak si vyrobit použitelný laptop -- Modifikace ThinkPadů X230 a T430](https://www.youtube.com/watch?v=R_SXGbItqbI)
 - [Cesta z pekla -- Instalujeme vlastní BIOS na ThinkPad x230](https://www.youtube.com/watch?v=03G4MchxqYA)
 - [PGP Key Signing Party](https://www.youtube.com/watch?v=rDMCPtjPuGo)
-- [~RGB Mixer~](#)
+- [RGB Mixer](https://ftp.microlab.space/prednasky/rgb-mixer.mp4)