I deploy to AWS with a serverless architecture and infa-as-code written in the same language as my app using CDK. Serverless is great for side-projects because

I deploy to AWS with a serverless architecture and infa-as-code written in the same language as my app using CDK. Serverless is great for side-projects because the scale based pricing effectively makes things free unless they really take off. And if it ever does go to decent scale, there's a good chance you don't need to re-architect or even tune anything to scale up with traffic. If you wanted to prioritize 100% predictable fixed costs over everything else, then maybe a VPS would be a better option.