↑↓ change by 1 min
·←→ change by 5 min
·Space start / stop
·R restart
·F fullscreen
Arrow keys also work while the timer is running — add or remove time on the fly.
Call for AV Support
Briefly describe the problem so the AV team knows what to bring:
Options
AV Support Call
Subscribe on phones at ntfy.sh (free app) and enter the same topic name.
Pick something hard to guess — topics are public.
Space / Enter: start & stop · R: restart · F: fullscreen
↑ ↓ ±1 min · ← → ±5 min (works while running)