That would be a big big effort, and frankly speaking the impact would be too small to justify investing resources into it.
You are probably the only one that would like to self-host it rn, and if nostr grows the amount of RAM required to keep the graph on Redis would cut off most home servers anyway.
And it's not a do it and forget it thing. With every new version I would have to test it works, and promise support, which is just too much. Hope you understand