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