React Monorepo Tech Stack Architecture 2025
Summary of:
deepresearch/dev-workflow/react-monorepo-tech-stack-2025.md
Key Points
- NX vs Turborepo: NX 7x faster for large repos but steeper learning curve; Turborepo adds speed in 10 minutes
- Two-tool state management: TanStack Query for server state, Redux Toolkit for client state is the 2025 pattern
- Vite replacing Webpack: 76.7% faster dev startup, 96.3% faster HMR, but Module Federation support immature
- React 19 requires patience: 38% faster loads, 32% fewer re-renders, but ecosystem compatibility is blocker
- TypeScript 5.8: Better tsconfig discovery, improved ESM support, direct Node.js execution
- pnpm dominance: 2-3x faster than npm, 15GB disk savings, strict dependency resolution
- Next.js 15: Requires React 19, explicit caching control, Turbopack stable
Critical Insights
- Delay React 19 until Q2-Q3 2026 - Performance gains don't outweigh ecosystem instability risk
- Use right tool for each state type - Server state (TanStack Query), client state (Redux), URL state (Router)
- Module Federation is the blocking factor - Keeps teams on Webpack despite Vite's superior DX
Quick Reference
| Tool | 2025 Status | Recommendation |
|---|---|---|
| NX | Best for complex projects | New projects, long-term codebases |
| Turborepo | Best for quick wins | Add speed to existing repos |
| TanStack Query | Industry standard for server state | Use for all new API data |
| Redux Toolkit | Best for client state | Auth, theme, preferences |
| Vite | Best DX | New SPAs without MF |
| Webpack | Required for MF | Micro-frontends |
| React 18 | Stable | Stay until ecosystem ready |
| React 19 | Bleeding edge | Wait for library support |
| TypeScript 5.8 | Stable | Upgrade immediately |
| pnpm | Package manager standard | Use for all new projects |
State Management Pattern 2025
// Redux for client state
const user = useSelector(state => state.auth.user)
const theme = useSelector(state => state.theme)
// TanStack Query for server state
const { data: movies } = useQuery(['movies'], fetchMovies)
const { data: profile } = useQuery(['profile'], fetchProfile)
Migration Priorities
- TypeScript 5.8 - Stable, immediate upgrade
- pnpm - If not already using
- TanStack Query - For new features
- React 19 - Q2-Q3 2026 after ecosystem stabilizes
- Vite - When Module Federation support matures