brew install flyctl && fly launch --from https://github.com/andreasfertig/heise-2021-04-clean-code-mit-cpp-teil-2
curl -L https://fly.io/install.sh | sh && fly launch --from https://github.com/andreasfertig/heise-2021-04-clean-code-mit-cpp-teil-2
iwr https://fly.io/install.ps1 -useb | iex; fly launch --from https://github.com/andreasfertig/heise-2021-04-clean-code-mit-cpp-teil-2