How to download and setup UniWinApi
Open terminal and run command
                                            git clone https://github.com/kirurobo/UniWinApi.git
                                        
                                        git clone is used to create a copy or clone of UniWinApi 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 UniWinApi https://github.com/kirurobo/UniWinApi/archive/master.zip
Or simply clone UniWinApi with SSH
                                            [email protected]:kirurobo/UniWinApi.git                                    
                                    If you have some problems with UniWinApi
You may open issue on UniWinApi support forum (system) here: https://github.com/kirurobo/UniWinApi/issuesSimilar to UniWinApi repositories
Here you may see UniWinApi alternatives and analogs
framework herebedragons ScriptableRenderPipeline ShaderGraph Entitas UniRx rant AssetsExtractor UtinyRipper kbengine C-Sharp-Promise NoahGameFrame wrmhl xLua MessagePack-CSharp LeopotamGroupLibraryUnity ml-agents PostProcessing awesome-unity UnityDecompiled tolua ZeroFormatter Arcadia Unity Unity-Script-Collection Steamworks.NET behaviac numix-gtk-theme unity Facepunch.Steamworks