If you have SSH access the best solution would be to install emacs on your client and edit remotely. Tramp allows you to edit remote files transparently. Setup

If you have SSH access the best solution would be to install emacs on your client and edit remotely. Tramp allows you to edit remote files transparently. Setup key based auth if you can, add an entry for you device in client's .ssh/config, then editing is as easy as opening "/ssh:hostname:/path/to/remote/file" with C-c C-f