I like your proposal @peg of a simple version of fwd'ing to start with. Here are the parts I read that I think could be trello cards :

• new schema : dark-crystal/forward + tests
• scuttle methods : forward.async.build (or maybe response.async.buildForward) and forward.async.publish (this pattern of seperating building and publishing is something I did in gatherings that I really liked, would like to check if it suits here.
• patchbay-dark-crystal : coherent design which helps user understand different 'parts'
  • sharing my things
  • supporting my friends
  • requesting my shards from another account ... OR being an executor for a dead friends estate and finding other custodians.
  • only when we've done this design work can we create cards for what the patchbay work really is