brew install flyctl && fly launch --from https://github.com/junsuk5/java_design_pattern_lecture
curl -L https://fly.io/install.sh | sh && fly launch --from https://github.com/junsuk5/java_design_pattern_lecture
iwr https://fly.io/install.ps1 -useb | iex; fly launch --from https://github.com/junsuk5/java_design_pattern_lecture