I work for Het CAK in the Netherlands and develop backend functionality in .Net.
Currently we are implementing an exchange with member states using EESSI for "Actual cost claims" (S_BUC_19, AW_BUC_05) and "Fixed amounts" (S_BUC_21). The technologies we use are:
- EF Core
- Oracle DB
- ActiveMq classic
- MassTransit (@phatboyg)
Our usage of ActiveMq was my drive to implement an ActiMq Classic host component for the Aspire CommunityToolkit that could be used by ActiveMq. I did this because MassTransit expects a scheme "activemq" in the connectionstring.
Support for ActiveMq Artemis will be available soon.