* [Lego v5.4.0](https://github.com/go-acme/lego) – Let's Encrypt client and ACME library written in Go.

* [mkcert Web UI v4.3.3](https://github.com/jeffcaldwellca/mkcertWeb) – Web-based interface for managing mkcert CLI internal CA and generating downloadable local development SSL certificates.

* [Kubelet Serving Certificate Approver v0.11.1](https://github.com/alex1989hu/kubelet-serving-cert-approver) – Custom approving controller that approves kubernetes.io/kubelet-serving Certificate Signing Requests for kubelet TLS endpoints.