How to download and setup rxqt
Open terminal and run command
                                            git clone https://github.com/tetsurom/rxqt.git
                                        
                                        git clone is used to create a copy or clone of rxqt 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 rxqt https://github.com/tetsurom/rxqt/archive/master.zip
Or simply clone rxqt with SSH
                                            [email protected]:tetsurom/rxqt.git                                    
                                    If you have some problems with rxqt
You may open issue on rxqt support forum (system) here: https://github.com/tetsurom/rxqt/issuesSimilar to rxqt repositories
Here you may see rxqt alternatives and analogs
openage tiled liteide qt qutebrowser MuseScore mapbox-gl-native qTox Clementine antimony flameshot gqrx mixxx appleseed pywebview toggldesktop edb-debugger openauto CuteMarkEd LibreCAD qgroundcontrol otter-browser feedback QDarkStyleSheet stellarium hotspot GoldenCheetah SlicerGitSVNArchive qtbase nitroshare-desktop