diff --git a/README.md b/README.md
index 240adae..6d1e63b 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,13 @@ apk add hunspell hunspell-en hunspell-en-us
 apk add neovim pandoc git less make gcc musl-dev openssl-dev mandoc man-pages
 ```
 
+To make sure sound and webcams work:
+
+```
+doas addgroup $USER audio
+doas addgroup $USER video
+```
+
 ### Firefox
 
 I use the following Firefox extensions: