On: Osm-p2p: a peer-to-peer distributed OpenStreetMap ...

[substack]

The focus is offline, but the underlying techniques work just as well across the public internet. For example, you could use https://www.npmjs.com/package/webrtc-swarm to sync the hyperlogs:

    var wswarm = require('webrtc-swarm')
    var signalhub = require('signalhub')
    var swarm = wswarm(signalhub('p2p-map', ['https://signalhub.mafintosh.com'])

    var osm = require('osm-p2p')()
    swarm.on('peer', function (peer, id) {
      peer.pipe(osm.log.replicate()).pipe(peer)
    })