It could be yep. One of the things that makes it a good fit for this use case is that Flecs has a query language that supports things like graph traversal and j

It could be yep. One of the things that makes it a good fit for this use case is that Flecs has a query language that supports things like graph traversal and joins. Combined with either the builtin REST API or some custom protocol you could use it as a realtime in-memory database (which is what I use it for).