There are 2 repositories under sharepoint-2019 topic.
The SharePoint Client Browser (SPCB) uses the CSOM to connect to a remote SharePoint site collection and shows the site structure with related properties and values.
JavaScript SharePoint REST Web Services Library
The SharePoint FBA Pack for SharePoint 2010, 2013, 2016 & 2019. Web parts and tools to manage your SharePoint forms based authentication users.
Packer templates and build workflows for SharePoint professionals - Windows 2016, SQL 2016, SharePoint 2016 and Visual Studio 2017.
Custom SharePoint Forms for SharePoint 2013/2016/SPOnline. Using AngularJS
Official SharePoint Server Connector Package for Elastic Enterprise Search - Workplace Search
Reusable PowerShell modules used in uplift project
Create First SharePoint SPFx Framework Project