We were Fauna users for several years and invested a lot of time working with it and around it. The time travel capability was one of the stand out features for us in addition to FQL which opened some interesting capabilities. That being said for various reasons we had to transition away from it and did so by creating a FQL compatible solution on top of Postgres. It is implemented in JavaScript/TypeScript and runs in Postgres through the plv8 extension. Is this something that would be interesting to other current users?