The Apache Software Foundation (ASF) is an American charitable organization with over 320 active software projects. These projects are enterprise-grade and freely available, and form the backbone of many widely used applications around the globe.
LXD is primarily a container management tool. It utilizes Linux Containers (LXC) under the hood for containers. More recently it has embraced QEMU/KVM to run virtual machines (VM).
WordPress is an easy to use content management system (CMS). It’s broadly used on the internet to facilitate websites for organizations big and small. Additionally, it is well documented, along with a huge ecosystem of extensions to allow its use publishing personal weblogs to large consumer websites.