Released version 0.13.2 of #Dropserver today:
https://github.com/teleclimber/Dropserver/releases/tag/v0.13.2
It adds an HTTP proxy to the sandbox as a starting point to monitor outbound requests from the app.
It fixes some leaking file descriptors and goroutines which caused problems for long-running instances.
Lots of code cleanup to clear the path for the next things I'll work on.