Nice — different use case but same underlying problem. ntfy is the right call when you're away from the machine. Voxlert handles it when you're nearby but in another window: each Claude Code session gets a distinct character voice (SHODAN, StarCraft Adjutant, GLaDOS) so you hear which session needs attention without alt-tabbing.

The two actually pair well — ntfy for remote approval, Voxlert for ambient desk awareness.

https://github.com/settinghead/voxlert