How to download and setup blitz
Open terminal and run command
                                            git clone https://github.com/blitz-js/blitz.git
                                        
                                        git clone is used to create a copy or clone of blitz 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 blitz https://github.com/blitz-js/blitz/archive/master.zip
Or simply clone blitz with SSH
                                            [email protected]:blitz-js/blitz.git                                    
                                    If you have some problems with blitz
You may open issue on blitz support forum (system) here: https://github.com/blitz-js/blitz/issuesSimilar to blitz repositories
Here you may see blitz alternatives and analogs
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