We mainly use the 'jail' service.
In our company we develop javaEE software with deployment on a Tomcat server, then some nodejs services, relational databases such as Mysql and NoSQL such as Mongo, a GitLab environment like corporate code repository, corporate chat with rocketChat, and a Maven private repository, these are some that come to my mind.
Therefore, all these applications, thanks to 'jails', find an ideal environment where they can be installed and run.
Obviously, the primary purpose of a corporate NAS has also been put to use. The ability to create users and manage permissions with ACL is simple and fast to use.