Install a system via nixos-anywhere

```bash
$ nix run github:numtide/nixos-anywhere -- \
  --flake 'git+https://git.hoyer.xyz/harald/nixcfg'.#hostname \
  root@hostname --no-reboot --tty -i $HOME/.ssh/id_ed25519
... enter disk password
$ ssh -t root@hostname systemd-cryptenroll /dev/luksdev --wipe-slot=tpm2 --tpm2-device=auto --tpm2-pcrs=1,15
```

nixos-rebuild remote git flake

```bash
$ nixos-rebuild --use-remote-sudo -L --show-trace --refresh --flake git+https://git.hoyer.xyz/harald/nixcfg boot
```
on darwin

```bash
$ darwin-rebuild --use-remote-sudo -L --show-trace --refresh --flake git+https://git.hoyer.xyz/harald/nixcfg switch
```


home-manager remote git flake

```bash
$ nix --refresh run 'git+https://git.hoyer.xyz/harald/nixcfg' -- \
  switch -b backup --flake 'git+https://git.hoyer.xyz/harald/nixcfg'
```