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