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