There are 6 repositories under root-ca topic.
A simple zero-config tool to make locally trusted development certificates with any names you'd like.
Generate self signed ssl certificates with your own root CA certificate
Bash shell scripts to make (and view) x509 certificates, CSRs and other files including SANs and other extensions.
Certificate Authority Tools
the Script to creating CA and Certificates using OpenSSL
CertPy is a high level toolkit for generating x509 (e.g. SSL/TLS/HTTPS) certificates in Python.
Samba AD DC como Entidad Certificadora
Causal Understanding and Remediation for Enhancing Robot Performance
... with root CA restricted to single domain
Repozytrium startowe dla projektów opartych o "Docker Compose"