Tech Stack Decision Maker

Stop guessing. Get confident tech recommendations backed by reasoning.

What This Skill Does

You describe the project requirements, and this skill recommends:

✅ Exact Tech Stack - Specific technologies for frontend, backend, database, hosting ✅ Why Each Choice - Clear reasoning tied to project needs ✅ Claude Code Prompts - Ready-to-use prompts for building with this stack ✅ Deployment Strategy - Where and how to host ✅ Cost Breakdown - What it will cost the client monthly/annually ✅ Alternatives - When to consider different options

Who This Is For

Software Tailors who:

• Feel overwhelmed by technology choices
• Want to make confident recommendations to clients
• Need to justify tech decisions professionally
• Want to use modern, AI-friendly tech stacks
• Avoid picking the wrong stack and having to rebuild

How To Use This Skill

Input Format

Example Input:

Project: Fire inspection management system

Requirements:
- Web app for office staff (desktop primarily)
- Mobile-friendly interface for field inspectors
- User authentication with different roles (admin, inspector)
- Database for buildings, inspections, users
- File uploads (photos from inspections)
- PDF report generation
- Email notifications
- Real-time dashboard

Expected Users: 10-15 concurrent users max
Data Volume: ~200 inspections/month, growing slowly
Budget: Mid-range (client can afford hosting, but not enterprise costs)
Timeline: Need to launch in 4-6 weeks

Output Format

---

Tech Stack Recommendation: Fire Inspection Management System

Recommended Stack (Modern & AI-Friendly)

Frontend:     Next.js 14 (React framework)
Backend:      Next.js API Routes
Database:     PostgreSQL (via Supabase)
Auth:         Supabase Auth
File Storage: Supabase Storage
Hosting:      Vercel
Styling:      Tailwind CSS

---

Why This Stack?

✅ Next.js 14 (Frontend + Backend)

Reasons:

• All-in-one: Frontend and backend in one codebase (simpler for Claude Code to build)
• Fast development: React components + built-in routing = quick builds
• Mobile-friendly: Responsive by default
• SEO-ready: Server-side rendering if needed
• Claude Code loves it: Widely documented, Claude handles it perfectly

Perfect for: Projects that need both a web interface and API logic

Alternative: Separate React + Express if you need API used by multiple frontends

---

✅ PostgreSQL (via Supabase)

Reasons:

• Relational data: Your project has clear relationships (buildings → inspections → users)
• Robust: Handles complex queries, transactions, data integrity
• Supabase = managed: No database administration headaches
• Built-in features: Real-time subscriptions, row-level security, auto-generated REST API
• Affordable: Free tier for small projects, $25/month for production

Perfect for: Projects with structured data and relationships

Alternative: MongoDB if data structure is super flexible/undefined

---

✅ Supabase (Auth + Storage + Database)

Reasons:

• Complete backend: Auth, database, storage all in one
• Fast setup: No backend server to configure
• Secure by default: Row-level security policies protect data
• File storage included: Photo uploads handled easily
• Great docs: Claude Code knows how to integrate it

Perfect for: Projects that don't need complex custom backend logic

Alternative: Firebase (similar features, Google ecosystem) or custom backend if complex logic

---

✅ Vercel (Hosting)

Reasons:

• Made for Next.js: Seamless deployment (literally one click)
• Automatic deployments: Push to GitHub = instant deploy
• Edge network: Fast globally (CDN built-in)
• Free tier: Generous (perfect for small projects)
• Easy custom domains: Client's domain setup is trivial

Perfect for: Next.js projects (it's made by the same company)

Alternative: Railway or Render if using non-Next.js stack

---

✅ Tailwind CSS (Styling)

Reasons:

• Fast styling: Utility classes = rapid UI development
• Responsive built-in: Mobile-friendly by default
• Consistent design: Design system in your HTML
• Claude Code's preference: Most AI code generation uses Tailwind

Perfect for: Fast prototyping and modern UI design

Alternative: Plain CSS or styled-components if you prefer

---

Complete Tech Stack Breakdown

Layer	Technology	Monthly Cost	Why This Choice
Frontend	Next.js 14	Free (included in hosting)	All-in-one React framework, fast development
Backend	Next.js API Routes	Free (included in hosting)	Backend logic in same codebase as frontend
Database	PostgreSQL (Supabase)	$25	Relational data, managed service
Authentication	Supabase Auth	Included	Secure user login, role-based access
File Storage	Supabase Storage	Included	Photo uploads for inspections
Hosting	Vercel	$20 (Pro plan)	Seamless Next.js deployment
Domain	Custom domain	$12/year (~$1/month)	Client's branded URL
Email	Resend or SendGrid	$0-10	Transactional emails (notifications)
Total		~$46-56/month	Mid-range, scalable

Annual Cost: ~$552-672/year

---

Claude Code Prompts for This Stack

1. Project Initialization

Create a Next.js 14 project with TypeScript, Tailwind CSS, and ESLint.
Use the App Router (not Pages Router).
Set up folder structure: /app, /components, /lib, /types, /public.

2. Supabase Setup

Install Supabase client library.
Create a Supabase project and get the project URL and anon key.
Set up environment variables for NEXT_PUBLIC_SUPABASE_URL and NEXT_PUBLIC_SUPABASE_ANON_KEY.
Create a Supabase client utility function in /lib/supabase.ts.

3. Database Schema

In Supabase, create the following PostgreSQL tables:
- users (id, email, role, created_at)
- buildings (id, name, address, client_name, inspection_frequency, created_at)
- inspections (id, building_id, inspector_id, scheduled_date, status, notes, created_at)

Set up foreign key relationships:
- inspections.building_id → buildings.id
- inspections.inspector_id → users.id

Create row-level security (RLS) policies so users can only see their own data.

4. Authentication

Implement Supabase authentication with email/password.
Create a login page at /login and signup page at /signup.
Add middleware to protect routes (redirect to /login if not authenticated).
Store user session in cookies for persistence.

5. Dashboard Page

Create a dashboard page at /dashboard.
Show today's inspections, upcoming inspections, and overdue inspections.
Use Supabase to fetch data with real-time subscriptions.
Style with Tailwind CSS - use cards and a clean layout.

6. Buildings Management

Create a page at /buildings that shows a list of all buildings.
Add search and filter functionality.
Create a form to add/edit buildings with fields: name, address, client_name, inspection_frequency.
Implement CRUD operations using Supabase.

7. Inspection Scheduling

Create an inspection scheduling page at /inspections/new.
Form fields: building (dropdown), inspector (dropdown), scheduled_date (date picker).
On submit, create a new inspection record in Supabase.
Show success notification and redirect to dashboard.

8. File Uploads

Add photo upload functionality to inspection forms.
Use Supabase Storage to handle file uploads.
Create a storage bucket called "inspection-photos".
Allow inspectors to upload multiple photos per inspection.
Display uploaded photos in a grid with lightbox functionality.

9. PDF Report Generation

Install @react-pdf/renderer library.
Create a PDF template for inspection reports that includes:
- Company logo and branding
- Building and client information
- Inspection details and results
- Photos (if any)
Generate PDF on demand when user clicks "Download Report" button.

10. Email Notifications

Install Resend library for sending emails.
Create API route at /api/send-email.
Send email when:
- Inspection is scheduled (notify inspector)
- Inspection is completed (notify client)
Use email templates with dynamic data (building name, date, etc).

---

Deployment Steps

Step 1: Push to GitHub

git init
git add .
git commit -m "Initial commit"
git remote add origin [your-github-repo-url]
git push -u origin main

Step 2: Connect Vercel

1. Go to vercel.com and sign up
2. Click "Import Project"
3. Connect your GitHub repository
4. Vercel auto-detects Next.js and configures build settings

Step 3: Add Environment Variables in Vercel

• NEXT_PUBLIC_SUPABASE_URL = [your Supabase project URL]
• NEXT_PUBLIC_SUPABASE_ANON_KEY = [your Supabase anon key]
• RESEND_API_KEY = [your Resend API key]

Step 4: Deploy

• Vercel automatically deploys on every push to main branch
• Production URL: your-project.vercel.app

Step 5: Custom Domain

• In Vercel dashboard, go to Settings → Domains
• Add client's custom domain (e.g., inspections.clientcompany.com)
• Follow DNS configuration instructions

Total Deployment Time: 10-15 minutes

---

When to Use Alternatives

Use MongoDB instead of PostgreSQL if:

• ❌ Data structure is highly variable/unpredictable
• ❌ Need extreme flexibility in schema
• ❌ Storing lots of nested JSON objects

Example: Social media app with diverse user-generated content

Use Firebase instead of Supabase if:

• ❌ Client is heavily invested in Google ecosystem
• ❌ Need Google Cloud integrations
• ❌ Want Firestore's offline-first mobile SDKs

Example: Mobile app that needs offline functionality

Use React + Express instead of Next.js if:

• ❌ Backend logic is very complex (heavy business rules)
• ❌ Need separate API consumed by mobile apps + web
• ❌ Team already knows Express well

Example: Complex ERP system with intricate business logic

Use Render/Railway instead of Vercel if:

• ❌ Using backend other than Next.js (like Django, Rails)
• ❌ Need more control over server configuration
• ❌ Want to host database and app on same platform

Example: Python/Django project

---

Stack Complexity Levels

🟢 Beginner-Friendly (Recommended for new software tailors)

Stack: Next.js + Supabase + Vercel + Tailwind Why: Minimal configuration, great docs, Claude Code handles it perfectly Best for: 80% of B2B software projects

🟡 Intermediate

Stack: React + Node.js/Express + PostgreSQL + AWS/Railway Why: More control, separate frontend/backend Best for: Projects with complex backend logic or existing infrastructure

🔴 Advanced (Avoid unless necessary)

Stack: Custom microservices + GraphQL + Kubernetes + AWS Why: Overkill for most projects, high maintenance Best for: Enterprise systems with huge scale requirements

For software tailors: Stick to 🟢 Beginner-Friendly unless client has specific needs

---

Tech Stack Red Flags

Avoid these unless you have good reason:

❌ PHP/WordPress - Outdated, hard to maintain, Claude Code struggles with it ❌ Ruby on Rails - Less common, fewer Claude Code examples ❌ Angular - More complex than React, steeper learning curve ❌ MySQL - PostgreSQL is better for modern projects ❌ Shared hosting - Slow, unreliable, use cloud platforms instead ❌ Self-hosted everything - Maintenance nightmare, use managed services

---

Quick Stack Recommendations

Simple CRUD App (basic data management):

• Next.js + Supabase + Vercel
• Cost: $25-50/month
• Build time: 2-3 weeks

Mobile-First Field Service:

• Next.js (responsive) + Supabase + Vercel
• Consider PWA (progressive web app) before native mobile
• Cost: $25-50/month
• Build time: 3-4 weeks

Complex Project Management:

• Next.js + Supabase + Vercel + Advanced features (Stripe, Twilio, SendGrid)
• Cost: $50-100/month
• Build time: 6-8 weeks

E-Commerce / Customer Portal:

• Next.js + Supabase + Stripe + Vercel
• Cost: $50-100/month (+ Stripe fees)
• Build time: 4-6 weeks

---

Remember

The best tech stack is:

1. ✅ Simple - Fewer moving parts = fewer bugs
2. ✅ Well-documented - Claude Code can help effectively
3. ✅ Managed services - Less maintenance = more time building
4. ✅ Cost-effective - Under $100/month for most B2B projects
5. ✅ Proven - Use battle-tested tech, not bleeding edge

Default recommendation for 80% of projects: Next.js + Supabase + Vercel + Tailwind

This stack is modern, AI-friendly, affordable, and scalable.

Stop overthinking tech choices. Use this stack, build fast, get paid.