bun
                                Bun is a simple to use C++ Object Database, Object Relational Mapper (ORM) and key-value library
                            
                        How to download and setup bun
Open terminal and run command
                                            git clone https://github.com/BrainlessLabs/bun.git
                                        
                                        git clone is used to create a copy or clone of bun 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 bun https://github.com/BrainlessLabs/bun/archive/master.zip
Or simply clone bun with SSH
                                            [email protected]:BrainlessLabs/bun.git