GeoSuite
GeoSuite (formerly GeoHelm) is an Open Source solution that allows a user to install, configure, and manage a complete GIS stack. It allows for browser based management of tools such as PostGIS, GeoServer, and PgRouting.
Get it on Github
QuartzMap
QuartzMap transforms your qgis2web maps into secure, dynamic maps. No extra plugins to install. Just FTP your QGIS project to QuartzMap. Support for qgis2threejs, D3 Charts, and Sentinel Hub.
Get it on Github