Elastic ingest pipelines Open Guide to AWS https://www.strongdm.com Logstash, but in Rust https://greenmail-mail-test.github.io/greenmail/#deploy_docker_standalone Mingrammer diagrams as code Open Policy Agent is pretty darn cool, if you like Rego (derived from datalog, from Prolog). Related: Regula Learn AWS quick Benthos - I am always looking for better tools for processing streaming events. Logstash is powerful and flexible, but it's also a complete dog for performance. Also have my eye on Apache Storm, Flink, Wallaroo, and Mozilla Heka. Smallstep - Private x.509 certificate authority NSQ - Realtime distributed messaging SSH Agent Explained SaaS Operations Management - https://www.g2.com/categories/saas-operations-management https://www.checklyhq.com https://trackssl.com https://github.com/Netflix/bless https://jameshfisher.com/2018/03/16/how-to-create-an-ssh-certificate-authority/ SCIM