Too many projects need a tailor-made calendar, there are some weak points of the available open source calendars, so we decided to build our own. Up to now our package support raw typescript+reactjs and SPFX SharePoint project. We will announce it once it is finished.
Finally here, SharePoint 2019 project types in Visual Studio 2017. Some people said we need to wait Visual Studio 2019, luckily no need.