We haven't worked on this feature in a couple years, but we have
some documentation that may be useful to existing developers.
This was initially written by Joshua a long time ago, but we never added
it to our repo.
Change-Id: Icf0dbc40978ed8529c2918304b712d0f9d84811d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/408342
Commit-Queue: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Nate Biggs <natebiggs@google.com>
Matthew Nitschke