This tag is the long name. The post filed here is the 2026 beginner guide: generate an SSH key in Bitwarden, write Butane, convert it to Ignition, hand that file to the Fedora CoreOS installer, and bring up AdGuard Home with a Podman Quadlet. I split it from the shorter coreos tag because the older notes used the short label, and both URLs already exist. Same project, two spellings, and I would rather explain that than pretend one page inherited the other.

Use this guide when the host does not exist yet. The Quadlet-only posts assume you can already SSH in. They cover Pi-hole, a tighter AdGuard Home unit with nftables, and a nightly reboot timer, and they are tagged coreos. I list them here anyway, because installing CoreOS and then losing the follow-up articles is a bad map. The Ignition file is the part people rush. If the SSH key is wrong, you do not get a console password prompt the way Workstation trained you to expect. Fix the key before you reflash for sport.

Fedora Workstation and Silverblue are a different tag. They are desktops that happen to share a vendor. CoreOS is the image I want for a VM or an old laptop whose only public service is DNS. Keep Hyprland, Resolve, and the browser on another machine. The project page for this appliance links the same posts if you want the repo context next to the tutorial.

Start here