1. Fly.io - https://fly.io/ Deploy app servers close to your users · FlyA Public Cloud Built For Developers Who Ship Over 3 million apps have launched on Fly.io, leveraging global Anycast load-balancing, zero-config private networking, hardware isolation, and instant WireGuard VPN connections, with push-button deployments scalfly.io2. MongoDB Atlas - https://www.mongodb.com/ko-kr/atlas MongoDB A..