How to download and setup Nidhogg
Open terminal and run command
                                            git clone https://github.com/Idov31/Nidhogg.git
                                        
                                        git clone is used to create a copy or clone of Nidhogg 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 Nidhogg https://github.com/Idov31/Nidhogg/archive/master.zip
Or simply clone Nidhogg with SSH
                                            [email protected]:Idov31/Nidhogg.git                                    
                                    If you have some problems with Nidhogg
You may open issue on Nidhogg support forum (system) here: https://github.com/Idov31/Nidhogg/issuesSimilar to Nidhogg repositories
Here you may see Nidhogg alternatives and analogs
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