Ooh, and back when that was not a thing (iirc a few years back) me and a friend of mine had built a spiritually similar index for spicedb for our final year project at uni. We had a mini WAL and the ability to safely reject queries that specified a minimum update requirement after the index updation.
jschorr|2 months ago
[1]: https://discord.com/invite/GBeT3R4k84