def print-notify [message: string] {

        def print-notify [message: string, progress: int = -1] {

                let base_args = ["--appname=Rebuild" "--replace=1001"]
                let args = if $progress >= 0 {
                    $base_args | append ["--hints" $"int:value:($progress)"]
                } else {
                    $base_args
                }

                    ^dunstify --appname="Rebuild" --urgency=critical --timeout=30000 "Error" $"($message)"

                    ^dunstify ...$args --urgency=critical --timeout=30000 "Error" $"($message)"

                    ^dunstify --appname="Rebuild" "Status" $"($message)"

                    ^dunstify ...$args "Status" $"($message)"

          # Execute build and activation.

          print-notify $"($action) ($platform) configuration for ($host)..."

          print-notify $"($action) ($platform) configuration for ($host)..." 0

              print-notify "Starting remote build..." 25

              exit 1

          print-notify "Rebuild succeeded." 100