How to download and setup Qss
Open terminal and run command
                                            git clone https://github.com/chenwen1126/Qss.git
                                        
                                        git clone is used to create a copy or clone of Qss 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 Qss https://github.com/chenwen1126/Qss/archive/master.zip
Or simply clone Qss with SSH
                                            [email protected]:chenwen1126/Qss.git                                    
                                    If you have some problems with Qss
You may open issue on Qss support forum (system) here: https://github.com/chenwen1126/Qss/issuesSimilar to Qss repositories
Here you may see Qss alternatives and analogs
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