How to download and setup ggr
Open terminal and run command
                                            git clone https://github.com/majesticwizardcat/ggr.git
                                        
                                        git clone is used to create a copy or clone of ggr 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 ggr https://github.com/majesticwizardcat/ggr/archive/master.zip
Or simply clone ggr with SSH
                                            [email protected]:majesticwizardcat/ggr.git                                    
                                    If you have some problems with ggr
You may open issue on ggr support forum (system) here: https://github.com/majesticwizardcat/ggr/issuesSimilar to ggr repositories
Here you may see ggr alternatives and analogs
spritejs tinyrenderer appleseed yii2-render-many tangram pixijs bgfx Texture rendertron webglstudio.js mapnik asm-dom rust-doom react-tv gg herebedragons Glitter phenomenon ScriptableRenderPipeline Nidium Intrinsic armory PdfViewPager ShaderGraph ogre two WickedEngine Game-Programmer-Study-Notes glumpy ascii_art