Top 2 multiple-versions open source projects

CK repository with components and automation actions to enable portable workflows across diverse platforms including Linux, Windows, MacOS and Android. It includes software detection plugins and meta packages (code, data sets, models, scripts, etc) with the possibility of multiple versions to co-exist in a user or system environment:

Simple development of multi-version api based on spring-mvc annotation via @apiversion, support for uri, header, param.