It is developed in a single source tree and released as a complete operating system, so the base-system utilities are all very well integrated with the OS and c

It is developed in a single source tree and released as a complete operating system, so the base-system utilities are all very well integrated with the OS and consistent with each other. The third-party software ecosystem is very flexible (especially with Poudriere) and does a very good job keeping those packages from interfering with the base system without also making them feel separate. It had containers before they were cool. A lot of configuration can be done in a very concise and consistent way, and the documentation is overall very thorough, for example: https://www.freebsd.org/cgi/man.cgi?query=rc.conf&sektion=5 https://www.freebsd.org/cgi/man.cgi?query=rc.conf&sektion=5 https://www.freebsd.org/cgi/man.cgi?query=tuning&sektion=7 https://www.freebsd.org/cgi/man.cgi?query=tuning&sektion=7