Rogue Editors Started a Competing Wikipedia That’s Only About Roads

This issue is interesting in a generic sense - I have no particular interest in US roads, but the balance issue is difficult as editors are not evenly distributed - for example there are many articles about train stations in europe, but the level of detail is far from balanced wrt their relative importance ). Which leads to my question - did anybody consider a fediverse (decentralised) model of wikipedia whereby the community of interconnections gradually evolves, so inclusion / exclusion is less binary ?