Since there is not native (or source code) for Minecraft Bedrock for FreeBSD you can run Bedrock Minecraft server on FreeBSD using Linux Jail - with Linux Binary Compatibility FreeBSD feature.

Details here:

- https://forums.freebsd.org/threads/minecraft-bedrock-edition...

> Can you provide proof? It feels like an empty statement.

Here:

- https://news.ycombinator.com/item?id=43594043