Crdt sync

[gedw99]

https://github.com/vlcn-io/cr-sqlite/ does crdt sync.

I am suggesting this as a reference as I know @maxpert is interested in column and row level crdt sync properties and this project has those properties.

see : https://vlcn.io/docs/background-concepts

[maxpert]

I've been working on extension of my own that will allow a column to be crdt https://github.com/maxpert/sqlite-y-crdt