NextFs

Thin Fable binding layer for writing Next.js App Router applications in F#.

The package stays close to native Next.js concepts instead of introducing a separate framework. If you already understand how a feature works in Next.js, the goal is that you can express the same shape in F# with minimal translation.

Install

dotnet add package NextFs

Reading Path

1. Quickstart — add the package and write your first page
2. Starter App Walkthrough — step through the full example
3. Data Fetching & Route Config — server fetch() and route segment exports
4. Server & Client Patterns — route handlers, mixed flows
5. Directives & Wrappers — 'use client' / 'use server' rules
6. Special Files — error.js, loading.js, not-found.js, and more
7. API Reference — complete module and type lookup

Other Guides

• DSL & Computation Expressions
• Instrumentation
• Migration Guide (0.x → 1.0)
• Package Design & Limitations
• FAQ

Compatibility

Package	Version
NextFs	1.0.x
next	>= 15.0.0 < 17.0.0
react / react-dom	>= 18.2.0 < 20.0.0
Fable.Core	4.5.0
Feliz	2.9.0

Source & Examples

• GitHub repository
• Starter example
• Elmish example
• Reaction example