Question: I need a tool that allows me to focus on writing code, not configuring infrastructure, for my application development.

If you need a service to help you concentrate on writing code without worrying about the underlying infrastructure, Replit is a good choice. It's a cloud-based development environment with tools like AI code generation, collaboration abilities and deployment options that are easy to manage. The service supports multiple programming languages and offers instant environments for rapid coding and deployment without any setup or downloads.

Another top choice is GitHub Copilot, an AI-powered tool that can help developers at every step of the process. It offers context-aware code completion, chat help and integration with other services like log error checking and cloud deployment. Copilot can help developers write code that's more secure and less prone to bugs, and that's easier to manage when projects get complicated.

For something different, Engine lets you build and deploy software apps by writing in natural language instead of programming code. It can update its hosted SQLite database and API schema in real time and integrates with GitHub for management. With a free core service and a professional plan at $19/month, it's good for everything from small projects to more complex ones.

Last, if you want an AI-powered code assistant that keeps your code private and secure, check out Tabnine. Tabnine automates mundane tasks, offers AI chat support and suggests personalized code completions based on your own coding behavior. It works with popular IDEs and programming languages and offers a variety of plans, including a free option, so it's good for solo developers and large teams.