I believe the ecosystem idea requires only what's described in this document . Once we have that, or if we have enough resources, in parallel to that, we could also develop some extras. This document describes one of those extras: a public footprint/symbol/resource library.

Service: library repository

How my favorite service would look like

(Meanwhile I've designed, implemented and started a service called edakrill, using these ideas. In the below list I mark points that are already done by edakrill.)