Built a nice little PiKVM and deployed it in my NAS. The NAS is heavy and placed in a dark half-height place under the stairs so it’s awkward when things go wrong and you need hardware access.
For those that don’t know what PiKVM is: https://pikvm.org/
That’s basically it. It guarantees you can always access your computer remotely, even if you broke your ssh, or accidentally messed up your network config, or can’t boot due to filesystem corruption and need to run fsck from recovery mode.
Exactly, it isn’t a replacement. It is redundancy in the form of a screen with keyboard and mouse directly connected, but accessibly from remote (my couch). It is far from my primary interface with the server.