2. UlfiusWeb Framework to build REST APIs, Webservices or any HTTP endpoint in C language. Can stream large amount of data, integrate JSON data with Jansson, and create websocket services
3. GlewlwydSingle Sign On server, OAuth2, Openid Connect, multiple factor authentication with, HOTP/TOTP, FIDO2, TLS Certificates, etc. extensible via plugins
4. rhonabwyJavascript Object Signing and Encryption (JOSE) library - JWK, JWKS, JWS, JWE and JWT