Might check the file permissions then. Who owns the file? Does VMM have read permissions to the file? UUID 1000 is root, so it sounds like VMM is being run as your user, but the ISO is owned by root. You could try chown’ing that file to your user.
I think for those people it boils down to systemd being an init system that does more than an init system maybe should. Combine that with it being more complicated to work with and with Redhat not really being that open to feedback.
Headscale is great if you like networking fun, but that aside I’m not understanding why VC funding is such a black mark to the poster. Tailscale doesn’t generate meaningful revenue streams as its early-stage, so it has to secure funding to continue operations until they achieve high enough revenue to go public. That’s pretty standard in a business life-cycle, though. It seems like the main complaint is that Tailscale is a business. And what about the Linux Foundation? They are funded through private equity. Should you consider switching away because of that?
That mouse is probably using like 0.5W of power, that’s way too much. Throw it away and keybind everything.