I am not sure why there isn't a even lightweight sentry endpoint that does
- save post body to folders (use uuid as folder name to avoid spam)
- dir listing, and count number of entries
- render posted json to html, highlight stacktrace with js
- download raw json
- rotate, compress old entries.
I give those requirements to LLM, and I get a pretty much working rust implementation after few tweaks. It uses <5M ram idle. That covers the most basic feature that Sentry has (one-off error reporting, with rudimentary statistics). Sure, if that's enough for you then go ahead, but for most people using Sentry that's only the tip of the iceberg.