A nostr relay in C with sqlite on the back end.

<!--
NOTE FOR ASSISTANTS: When updating the NIPs checklist below, ONLY change [ ] to [x] to mark as complete.
Do NOT modify the formatting, add emojis, or change the text. Keep the simple format consistent.
-->


### [NIPs](https://github.com/nostr-protocol/nips)

- [x] NIP-01: Basic protocol flow implementation
- [x] NIP-09: Event deletion
- [x] NIP-11: Relay information document
- [x] NIP-13: Proof of Work
- [x] NIP-15: End of Stored Events Notice
- [x] NIP-20: Command Results
- [x] NIP-33: Parameterized Replaceable Events
- [x] NIP-40: Expiration Timestamp
- [ ] NIP-42: Authentication of clients to relays
- [ ] NIP-45: Counting results.
- [ ] NIP-50: Keywords filter.
- [ ] NIP-70: Protected Events