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