What improvements can be made to Next.js App Router for better developer experience?

[Gunjan-pandey85340]

Hey Next.js team and community! 👋

I’ve been exploring the new App Router and I really like the flexibility and file-based routing it provides. However, I had a few thoughts:

• Could we have better error messages when using nested layouts incorrectly?
• Maybe add optional TypeScript starter templates using App Router out of the box?
• Can loading UI states be auto-handled in more scenarios without extra boilerplate?

Just sharing my thoughts — would love to know if others feel the same or have suggestions.

[SametDulger]

Hi @Gunjan-pandey85340,

Thanks for sharing your feedback! I agree the App Router brings great flexibility, but there’s always room to improve developer experience.

A few suggestions aligned with your points:

Better error messages for nested layouts
More descriptive and actionable errors when layouts are misused or missing would help developers debug faster, especially when nesting deeply.

TypeScript starter templates
Official TypeScript starter projects with App Router preconfigured would be great for newcomers, reducing setup friction and showcasing best practices.

Auto-handling loading UI states
Built-in support to handle common loading states (like suspense boundaries or transitions) with less boilerplate would streamline async UX patterns.

Additional ideas:

Improved debugging tools or DevTools integration tailored for App Router’s unique data fetching and routing model.

Enhanced docs with migration guides from Pages Router and common pitfalls.

More flexible route grouping and dynamic segment handling without complex conventions.

Overall, it’s exciting to see how the ecosystem evolves. Curious to hear what others think!

[Gunjan-pandey85340]

Thanks for the detailed response! I really liked your suggestions, especially about debugging tools and migration guides. Excited to see how the App Router evolves!