External links
Create PDF documents in crystal using libhpdf / libharu
The missing context shard for crystal
A simple http router for crystal
OIDC client for crystal
Crystal implementation ChaCha20 stream cipher as well as the Poly1305 authenticator and the AEAD mode defined in rfc8439.
Build HTML using a crystal DSL
Access the keycloak admin API from Crystal
Implements the openfeature specification in crystal