There are 3 repositories under sr25519 topic.
High-performance Curve25519/ristretto255 for Go.
C bindings over RUST sr25519 https://github.com/w3f/schnorrkel
Pure C implementation of schnorrkel algorithm (sr25519)
.Net bindings for SR25519 crypto - https://github.com/w3f/schnorrkel
ecdsa, ed25519, sr25519 Kotlin wrappers
ecdsa, ed25519, sr25519 Swift wrappers
Rust's merlin and schnorrkel port to Kotlin
C# Implementation of SR25519 signing algorithm
Light module implementation for cryptography used in Substrate chains