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