Did you see the site? We only go the other way! We are an altcoin migration service. We help people moved over to Bitcoin via Lightning. We no longer support going the other way. It's something like a "teleburn" service, as far as the user is concerned. Send your altcoins to an address we control, and we almost instantly disburse sats directly into your Lightning wallet (Alby,Kollider). On the backend, we liquidate the positions to refill our own buffer wallet(s) with sats.