1. create a manual editor which can
   1. add node and edge
      1. edit node name and edge name
   2. node
      1. usually a service, can have diff type
         1. name: name of the service
         2. type: C++ backend service/ C# GUI
         3. description: what does it do?
         4. connection: one upstream per connection? how data transmission works? subscription base? request base? etc.
         5. link: link to doc? link to optic?
      2. or a middleware? redis?
   3. edge
      1. usually data transmission
         1. name: what is the data being transferred
         2. transmit media: kafka? redis? https?
         3. transmit rule? subscription? request?
   4. persist data, load data
   5. how to edit? how to review?