Guidance to hosting and putting a domain on wasp

Hey there, I'm currently using the openSaaS template and was wondering how I can link this to a DNS? I've purchased a domain name but was unsure how to host the wasp SaaS on that domain? I've tried cloudflare hosting, namecheap and vercell but all of them had problems with it. Anyone got any guides/tutorials I could follow, I'd really appreciate it. Thanks!