This looks great, although the Azure requirement makes it a no-go for me. I just keep wishing for a simple solution that is easy to self-host locally. After a lot of work I managed to get an instance of Helicone running, but it's made of 6 or 7 different services, each with a pretty large footprint.
I feel like there's definitely room for a single-binary tool made in Go with a small sqlite database and in-memory caching.