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