brew install flyctl && fly launch --from https://github.com/walkergriggs/libav-screencap
curl -L https://fly.io/install.sh | sh && fly launch --from https://github.com/walkergriggs/libav-screencap
iwr https://fly.io/install.ps1 -useb | iex; fly launch --from https://github.com/walkergriggs/libav-screencap