I knew it! - but also fixed it because Orion refreshes on F5 and it was trivial.
Feature does not cut it, because I want the refresh on any change inside the project dir which Orion does not have to take care of.
Here is the relevant part in the watch.rb script, which lives here : watch.rb
thank you for Kagi and Orion, I had almost given up hope.
' %x{osascript<<ENDGAME
tell application "Orion"
activate
end tell
tell application "System Events" to keystroke "r" using {command down}
ENDGAME
}
end
end
sleep 1
end
`