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