[Feature Request] Run as service on non-systemd systems

[masoncfrancis]

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This is kind of a continuation of issue #147 but I'd be interested in implementing the ability to run this as a background service that runs on boot for other non-systemd systems, as well as Mac and Windows. I've found a library at github.com/kardianos/service that looks like it could manage the majority of the under-the-hood logic for us.

It's also worth mentioning that this library can also handle systemd stuff so it's usage would replace the code I submitted to you before.

If I submitted a PR with this functionality would you be willing to merge it?

[Forceu]

Yes, I think this would be a good idea! Thank you