diff --git a/TODO.md b/TODO.md
index 205d1aff..9c21b6c1 100644
--- a/TODO.md
+++ b/TODO.md
@@ -9,6 +9,7 @@
   - and if i had them differ and simultaneously online, then i'd exceed the OVPN machine count.
   - i should at least have them be up'd only on-demand.
 - sandbox: link cache means that if i update ~/.config/... files inline, sandboxed programs still see the old version
+- mpv: audiocast has mpv sending its output to the builtin speakers unless manually changed
 - mpv: no way to exit fullscreen video on moby
   - uosc hides controls on FS, and touch doesn't support unhiding
 - Signal restart loop drains battery