Hackathon-Starter-Pack-Complete-Guide-Roadmap

05. Tech Stack Chooser

A good stack is not the most powerful stack. It is the stack that gets you to a working demo fastest.

Stack selection logic

flowchart TD
    A[What are you building?] --> B{Need auth?}
    B -->|Yes| C{Need realtime?}
    B -->|No| D{Need backend?}
    C -->|Yes| E[Supabase or Firebase + Next.js]
    C -->|No| F[Next.js + simple API]
    D -->|Yes| G[FastAPI or Node.js]
    D -->|No| H[Static frontend + APIs]

Fastest stacks

Project type	Recommended stack	Why
AI web app	Next.js + API route + OpenRouter or Gemini + Supabase	Fast, modern, deploys easily
Dashboard	Next.js + Supabase + charts	Clean UI and data layer
Chat app	Next.js + Firebase or Supabase realtime	Easy auth and realtime
CRUD tool	React or Next.js + backendless DB	Minimal moving parts
ML demo	FastAPI + simple frontend	Easier model serving
Internal tool	Next.js + auth + database	Fast to ship
Simple landing + waitlist	Next.js static + forms	Very fast

Compare the common choices

Tool	Strengths	Limitations	Best use
Next.js	Full-stack, polished UX, great deployment	Can be overkill for tiny scripts	Most hackathon web apps
React	Flexible UI layer	Requires more setup	Frontend-only builds
Firebase	Auth, database, hosting, speed	Vendor lock-in, model complexity	Student tools and quick apps
Supabase	Postgres, auth, realtime, SQL	More setup than pure no-code	Products needing structured data
Node.js	Huge ecosystem	Backend design choices can sprawl	APIs, auth, integrations
FastAPI	Fast Python APIs, clean docs	Needs frontend layer	AI and data apps
Flask	Simple, lightweight	Less structure than FastAPI	Tiny prototypes
Django	Batteries included	Can be heavier for hackathons	Admin-heavy systems
MongoDB	Flexible documents	Not always ideal for relational data	Rapid prototyping
PostgreSQL	Strong, reliable, scalable	Slightly more design work	Serious product data
Neon	Serverless Postgres	Dependency on cloud setup	Quick hosted SQL
Railway	Fast deploy and infra	Credit planning matters	Full-stack prototypes
Render	Easy web services and background jobs	Platform limits	Stable deployments
Cloudflare Pages	Very fast static hosting	Backend needs separate service	Frontend-first projects
Convex	Fast app backend and realtime patterns	Opinionated ecosystem	Rapid collaborative apps

Practical recommendations

Build fast

Use:

• Next.js
• Supabase
• Vercel
• Tailwind
• a small API layer

Build with Python

Use:

• FastAPI
• PostgreSQL or Supabase
• Render or Railway

Build with AI

Use:

• Next.js or FastAPI
• OpenRouter, Gemini, or Groq
• simple prompt templates
• a strong fallback flow

Best stack by scenario

Scenario	Stack
Student tracker	Next.js + Supabase + Vercel
AI assistant	Next.js + OpenRouter + Supabase
OCR workflow	FastAPI + OCR API + Postgres
Analytics dashboard	Next.js + Supabase + chart library
Realtime collaboration	Firebase or Supabase realtime
Hackathon MVP in 6 hours	Next.js + Supabase + Vercel

Avoid these mistakes

• Choosing a stack because it feels advanced
• Adding Docker too early
• Mixing too many backend tools
• Choosing three databases
• Building a custom auth system from scratch
• Using an unfamiliar framework under time pressure

Rule of thumb

If the stack makes your demo harder to explain, it is probably too much.

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