Since HGKeeper provides and SSH server, you will need to generate SSH host keys

for it. You can disable the SSH server if you like, see the [usage](usage)

documentation for more information.

You can generate SSH host keys for whatever key type you prefer, but we would

recommend not using `ssh-rsa` as it's been deprecated and schedule for removal

in [OpenSSH 8.7](https://www.openssh.com/txt/release-8.7). So for the purpose

of this documentation, we will be using `ed25519` keys.

By default, the SSH host keys will be looked for in the directory `host-keys`

in the working directory of HGKeeper. This can be changed via the

`ssh-host-keys-path` command line argument or the `HGK_SSH_HOST_KEYS_PATH`

environment variable.

This directory will be read and any files in it will attempt to be loaded as

SSH host keys into the server.

To generate a host key you can use the following command. Note that you can

create other types via the `-t` command line argument, but you should read the

`ssh-keygen` documentation as other options are available for each type.