I recall taking a look at NuttX when I was shopping for an RTOS for a project a while back. Ended up choosing Zephyr (https://www.zephyrproject.org/) but I'm curious if anyone here has experience with both and can contrast them a bit.
Yeah, this seems great if you want to completely eliminate the middle tier and have a client application talk directly w/ the database. I'm curious why there's an entire query API via query string parameters. Why not just expose a single POST /query endpoint where you can send some SQL?