How to download and setup brewfile
Open terminal and run command
                                            git clone https://github.com/posquit0/brewfile.git
                                        
                                        git clone is used to create a copy or clone of brewfile repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with brewfile https://github.com/posquit0/brewfile/archive/master.zip
Or simply clone brewfile with SSH
                                            [email protected]:posquit0/brewfile.git                                    
                                    If you have some problems with brewfile
You may open issue on brewfile support forum (system) here: https://github.com/posquit0/brewfile/issuesSimilar to brewfile repositories
Here you may see brewfile alternatives and analogs
brew teaching-app-dev-swift hub open-source-ios-apps SVProgressHUD awesome-mac ios-good-practices macOS-Security-and-Privacy-Guide awesome-macOS ChakraCore openFrameworks dotfiles dotfiles cider dotfiles dotfiles vim-anywhere massren pywebview homebrew-bundle Awesome-CoreML-Models purge-wrangler WWDC SwiftyStoreKit Awesome-Swift-Playgrounds XHLaunchAd apns2 Hackintosh-Installer-University swift-summary Bender