+<li> Filesystem development and testing.
+<li> Bridge between proprietary disk storage/hypervisors, and
+the free world.
+<li> <span class="warning">⚠</span> Dangerous with untrusted disks — use libguestfs instead.
+</ul>
+
+<h2>Get it</h2>
+
+<ul>
+<li> nbdkit ≥ 1.8.3 available in major Linux distros.
+<li> nbd client ≥ 3.18 and kernel ≥ 4.18 recommended.
+<li> FreeBSD, OpenBSD, Haiku also supported as a server <small>(but
+those don't have kernel loop clients)</small>.