A setup to test tinc on a hetzner box

# steps

## OPTIONAL: generate fresh ssh keys

```sh
ssh-keygen -P "" -f sshkey
```

## OPTIONAL: generate new tinc keys

```
nix-shell -p tinc_pre --run "tinc --config . generate-keys 4096"
cat *.pub host_file
rm *.pub
```

## generate machine

```sh
cd ./01-terranix
nix-shell --run "create"
```

## provision machine

```sh
cd ./02-build
nix-shell --run deploy-server
```

## cleanup

```sh
cd ./01-terranix
nix-shell --run "clean"
```