For point 2, there is a maintained SSH server lib in the standard library. Its default options execute Erlang shell commands, but can be configured to run other

For point 2, there is a maintained SSH server lib in the standard library. Its default options execute Erlang shell commands, but can be configured to run other stuff (https://erlang.org/doc/man/ssh_server_channel.html https://erlang.org/doc/man/ssh_server_channel.html).