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 - [nostream](https://github.com/Cameri/nostream)![stars](https://img.shields.io/github/stars/Cameri/nostream.svg?style=social) - a nostr relay written in Typescript backed by PostgreSQL (renamed from nostr-ts-relay)
 - [nostr_relay](https://code.pobblelabs.org/fossil/nostr_relay/) – a nostr relay written in python, backed by SQLite
 - [søstr](https://github.com/metasikander/s0str)![stars](https://img.shields.io/github/stars/metasikander/s0str.svg?style=social) – a private nostr relay written in rust, saves all notes from one pubkey and publish them to anyone that requests them
+- [knostr](https://github.com/lpicanco/knostr)![stars](https://img.shields.io/github/stars/lpicanco/knostr.svg?style=social) – a nostr relay implemented in Kotlin with support for Postgres and metrics(micrometer).
+
 
 ### Instances