shopware
                                Shopware 6 is an open commerce platform based on Symfony Framework and Vue and supported by a worldwide community and more than 3.100 community extensions
                            
                        How to download and setup shopware
Open terminal and run command
                                            git clone https://github.com/shopware/shopware.git
                                        
                                        git clone is used to create a copy or clone of shopware 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 shopware https://github.com/shopware/shopware/archive/master.zip
Or simply clone shopware with SSH
                                            [email protected]:shopware/shopware.git                                    
                                    If you have some problems with shopware
You may open issue on shopware support forum (system) here: https://github.com/shopware/shopware/issuesSimilar to shopware repositories
Here you may see shopware alternatives and analogs
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