Supabase - An open source Firebase alternative
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Apache Cassandra - The Apache Cassandra database is the right choice when you need scalability and high availability without compromising performance.
nginx - A high performance free open source web server powering busiest sites on the Internet.
Patroni - A Template for PostgreSQL HA with ZooKeeper, Etcd, or Consul
vCenter Server - IaaS platform for managing and deploying virtual machines