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Why I came back to FreeBSD

published Β· 2026-08-20 Β· Twenty-five years after a first install at sixteen, the VFS, ZFS and jails brought me back to a system I could read.
The FreeBSD daemon
FreeBSD daemon

Twenty-five years ago, at sixteen, I first tried FreeBSD. I had come from Slackware, where simplicity was the point, and FreeBSD felt the same: one system, built together, nothing extra between you and the machine. I liked it immediately and never quite unlearned it.

For years I worked with other things. Then, on purpose, I decided to go back to the origins β€” the Unix philosophy and the fundamentals. I started reading FreeBSD's internals, the VFS layer and the vnode, how a file really works. Understanding how the pieces fit made the machine legible again.

Two practical reasons closed the decision. ZFS, because a filesystem should have a memory β€” snapshots, checksums, a mistake that can be undone. And jails, because isolation should not mean running a second operating system for every service.

So the plan is simple: host as much as I can inside jails, on ZFS, and keep following that philosophy. Small, legible, assembled from parts I can still see.