C#/Java/Firebase/Axelor/Flutter developpement

We have a business management application in C #, we want to migrate it o the open source Axelor project, step by step. For the moment we need to connect the Axelor server, with the C # application, and a Flutter mobile application. We need a SEED project, and extend our application as well as axelor. we need 1) Create a mobile application with Flutter and firebase (Type CRM). with offline support 2) the Axelor server is synchronized with the mobile aplication via firebase. 3) The C # application is synchronized with axelor via SignalR technology. Before answering, please consult the Axelor project [login to view URL], as well as DevExpress Winforms sample projects: [login to view URL], as C # application has synchronized. An example from you, which implements the connection between the C # DevExpress application, and Axelor via SignalR. Offers without this example won't be considered.