Seems fine to me! If you want you can probably just run it all on one Droplet to save costs for now. If you're able, I'd recommend using a DigitalOcean droplet

Seems fine to me! If you want you can probably just run it all on one Droplet to save costs for now. If you're able, I'd recommend using a DigitalOcean droplet with dedicated vCPUs -- they're a bit more expensive but you'll have normalized CPU performance and won't be choked out by noisy neighbor issues on the general purpose Droplets. Good luck with your SaaS side project!