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