That sounds like @DavidC’s project and he’'s looking for help: Refly (new IF platform) & izyuk (in-memory IF-oriented graph database).
I’m also working a Javascript library that’s also graph oriented. I’ve only gotten as far as writing the parser, but it’s coming along nicely: https://whitewhalestories.com. The challenge is to encapsulate the complexity of these systems without compromising flexibility or power.