If you are a solo developer focused on coding efficiency and seeking an intelligent coding assistant, choose Cursor. Its best-in-class AI completion and ability to navigate complex codebases make it ideal for those who frequently leverage AI in development and are comfortable with a closed-source tool. However, if you're looking for predictable billing or don't rely heavily on AI, it may not be the best fit.
On the other hand, if you're working on latency-sensitive applications and need to deploy servers close to your user base, Fly.io is your go-to. It offers excellent performance with multi-region deployment and cost-effective scaling options. Keep in mind, though, that it requires more operational knowledge and the billing can be unpredictable compared to simpler solutions. Avoid it if you prefer a fully managed platform with straightforward deployment processes.