In a virtual machine · Nightdrive docs

You can try the whole setup in an aarch64 Fedora 44 VM on any Apple Silicon Mac. Tested in Parallels Desktop 27:

Download the Fedora 44 KDE Plasma Desktop live ISO for aarch64 from fedoraproject.org/kde (the KDE edition, like Asahi Remix; Parallels' own Fedora download may be another release).
In Parallels: File › New › Install from an image file, tick Customize settings before installation, give it 8 GB of RAM (Deck's Rust build needs it) and under Graphics pick Best for Retina display. 3D acceleration (VirGL) is on by default for Linux on ARM; Parallels Tools aren't needed.
Install Fedora to the disk with an administrator user, reboot and check sudo dmesg | grep virgl shows +virgl.
Optional: to work in the Mac's Terminal (copy and paste) instead of the VM window, run sudo dnf install -y openssh-server && sudo systemctl enable --now sshd and ssh to the address ip -4 -br a prints.
Install as in the README and reboot. The installer detects the VM (systemd-detect-virt); ./install.sh --vm forces it.
To use ⌘ as Super inside the VM, set Parallels' VM settings › Hardware › Mouse & Keyboard › Send macOS system shortcuts to Always.
After restoring a snapshot, run sudo systemctl restart chronyd and check date a few seconds later: the VM's clock goes back with the snapshot (without Parallels Tools nothing syncs it with the Mac), chrony only slews a big gap slowly, and dnf rejects new packages whose signatures look made in the future.

On a VM the installer skips the notch step and writes config/hypr/local.lua with scale 2.0 (for Best for Retina display; pick 1.0 in the launcher's Settings › Display for Scaled), a software cursor, the rounded-corner shader off and, unless it's Finnish, the keyboard layout Fedora's installer set. It must be Fedora 44, because the Hyprland COPR builds only for that release. Containers won't work, since Hyprland needs a GPU. Parallels passes the Mac's battery to the VM; without a display or keyboard backlight their sliders are left out.