The Solo Developer Tech Stack

Your tech stack can make or break your side hustle. The right choices save months. The wrong ones waste your limited hours on problems that don’t matter.

This lesson gives you opinionated recommendations optimized for one thing: getting to paying customers as fast as possible.

The Stack Selection Principles

Principle 1: Boring Is Beautiful

Trendy tech is for funded startups with engineers to spare. You need reliable, well-documented, battle-tested tools.

Principle 2: Integrated > Best-in-Class

A platform that handles 5 things at 80% quality beats 5 specialized tools at 95% quality each. Integration overhead kills solo developers.

Principle 3: Fewer Decisions, Faster Progress

Every technology decision is time spent not building. Pick a stack and commit.

Principle 4: Optimize for Time-to-Revenue

You need paying customers, not perfect architecture. Choose tools that get you there fastest.

flowchart TD
    A[Next.js] --> B[React Frontend]
    A --> C[API Routes Backend]
    C --> D[Supabase]
    D --> E[PostgreSQL Database]
    D --> F[Authentication]
    D --> G[Real-time Subscriptions]
    H[Vercel] --> A
    I[Stripe] --> C

Components:

LayerChoiceWhy
FrameworkNext.jsFull-stack, great DX, massive community
DatabaseSupabasePostgreSQL + Auth + Realtime in one
HostingVercelDeploy in seconds, scales automatically
PaymentsStripeIndustry standard, excellent docs
EmailResendSimple, reliable, great API
CSSTailwindFast styling, consistent results

Best for: Developers comfortable with React/TypeScript

Total monthly cost (starting): ~$0-20

Stack 2: The Full-Stack Framework

Components:

LayerChoiceWhy
FrameworkLaravel or RailsBatteries included, fast development
DatabaseMySQL/PostgreSQLIncluded in framework
HostingRailway or RenderSimple deployment, good free tier
PaymentsStripeSame as above
Background JobsBuilt-inLaravel Queues or Active Job

Best for: Developers who prefer traditional MVC, PHP/Ruby background

Total monthly cost (starting): ~$5-25

Stack 3: The No-Code Path

Components:

LayerChoiceWhy
BuilderBubbleMost capable no-code platform
DatabaseBuilt-inComes with Bubble
AuthBuilt-inComes with Bubble
PaymentsStripe pluginEasy integration
HostingBuilt-inComes with Bubble

Best for: Non-technical founders, extremely simple products

Total monthly cost: ~$30-70

Warning: No-code works for validation but may limit you later. Plan for eventual rebuild if successful.

Deep Dive: The Modern Standard Stack

Next.js: Your Foundation

Why Next.js:

  • Full-stack (frontend + backend in one)
  • File-based routing (simple mental model)
  • API routes (no separate backend needed)
  • Server components (fast loading)
  • Massive ecosystem
  • Deploys to Vercel in one click

Project structure:

app/
├── page.tsx          # Homepage
├── login/
│   └── page.tsx      # Login page
├── dashboard/
│   └── page.tsx      # Main app page
├── api/
│   ├── webhook/
│   │   └── route.ts  # Stripe webhooks
│   └── [your-api]/
│       └── route.ts  # Your API endpoints
└── layout.tsx        # Root layout

Supabase: Your Backend

Why Supabase:

  • PostgreSQL database (real database, not toy)
  • Built-in authentication (email, OAuth, magic links)
  • Row-level security (secure by default)
  • Real-time subscriptions (if you need them)
  • Auto-generated APIs
  • Generous free tier

What Supabase handles:

✅ Database (PostgreSQL)
✅ User authentication
✅ User management
✅ API generation
✅ File storage
✅ Real-time updates

Setup time: ~30 minutes to full auth system

Stripe: Your Revenue

Why Stripe:

  • Industry standard for SaaS billing
  • Handles subscriptions, one-time, usage-based
  • Customer portal (customers manage their own billing)
  • Webhooks for subscription events
  • Tax handling (Stripe Tax)
  • Invoicing included

Essential Stripe features to use:

  • Checkout (hosted payment pages—don’t build your own)
  • Customer Portal (self-service billing management)
  • Webhooks (sync subscription status)
  • Pricing table (embed on your site)

Billing models supported:

  • Monthly/annual subscriptions
  • Usage-based pricing
  • One-time purchases
  • Credits/prepaid

Vercel: Your Infrastructure

Why Vercel:

  • Zero-config deployment
  • Automatic HTTPS
  • Global CDN
  • Preview deployments for branches
  • Built for Next.js

Deployment workflow:

git push → Automatic deploy → Live in ~60 seconds

Cost: Free tier handles most side projects. $20/month if you need more.

Supporting Tools

CSS: Tailwind

  • Utility classes = fast styling
  • No CSS file management
  • Consistent design system
  • Works great with component libraries

UI Components: shadcn/ui

  • Copy-paste components (not npm dependency)
  • Built on Radix (accessible)
  • Styled with Tailwind
  • Customize everything

Email: Resend

  • Simple API
  • React email templates
  • Deliverability handled
  • Generous free tier (100 emails/day)

Error Tracking: Sentry

  • Know when things break
  • Free tier sufficient for side projects
  • Easy Next.js integration

Setting Up Your Stack

Day 1: Foundation

# Create Next.js project
npx create-next-app@latest my-saas --typescript --tailwind --app

# Install essentials
npm install @supabase/supabase-js stripe @stripe/stripe-js

Day 2: Database & Auth

  1. Create Supabase project (5 minutes)
  2. Set up database schema
  3. Configure authentication providers
  4. Connect to Next.js

Day 3: Payments

  1. Create Stripe account
  2. Set up products/prices
  3. Implement Checkout integration
  4. Configure webhooks
  5. Build pricing page

Day 4: Deploy

  1. Push to GitHub
  2. Connect to Vercel
  3. Add environment variables
  4. Deploy

Total setup time: 4 days to complete foundation

The Complexity Trap

Things That Seem Important But Aren’t (Yet)

Microservices: You don’t need them. Monolith is fine until you have thousands of users.

Kubernetes: Total overkill. Vercel/Railway handle your scale.

Message queues: Use simple solutions first. Inngest or even cron jobs work fine initially.

Multiple databases: One PostgreSQL database handles more than you think.

Custom auth: Use Supabase/Auth0/Clerk. Don’t roll your own.

GraphQL: REST is fine. GraphQL adds complexity you don’t need.

When to Add Complexity

Add complexity when:

  • Current solution is clearly breaking
  • You have revenue to justify the time investment
  • The simpler solution has been tried and failed

Not when:

  • You “might need it later”
  • It’s technically interesting
  • Other companies use it

The Cost Reality

Starting Out (0-100 users)

ServiceCost
Vercel$0 (free tier)
Supabase$0 (free tier)
Stripe2.9% + $0.30 per transaction
Domain$12/year
Total~$1/month + Stripe fees

Growing (100-1000 users)

ServiceCost
Vercel Pro$20/month
Supabase Pro$25/month
Email (Resend)$20/month
Error tracking$0 (free tier)
Total~$65/month

Scaling (1000+ users)

You’ll have revenue. Scale costs appropriately.

Practice Exercise

Set up your development environment:

  1. Create accounts:

    • GitHub (if not already)
    • Vercel
    • Supabase
    • Stripe (test mode)
  2. Initialize project:

    • Create Next.js app with TypeScript and Tailwind
    • Push to GitHub
    • Deploy to Vercel
  3. Connect services:

    • Link Supabase to your project
    • Set up Stripe test environment
    • Configure environment variables
  4. Verify:

    • App loads on Vercel URL
    • Can query Supabase from app
    • Stripe dashboard shows test mode

Time needed: 2-4 hours for complete setup

Key Takeaways

  • Boring, integrated tools beat trendy, specialized ones
  • Next.js + Supabase + Stripe + Vercel is the recommended stack
  • Start with free tiers—they handle more than you think
  • Avoid premature complexity (microservices, K8s, custom auth)
  • Full setup takes ~4 days, not months
  • Choose tools that minimize decisions, not maximize options

Next: How to price your SaaS for profit.

What's the main principle for choosing a solo developer tech stack?

Choose the newest, most trending technologies
Choose boring, integrated tools that minimize decisions
Build everything custom for maximum control
Use microservices from day one for scalability

Why is Supabase recommended over building custom backend?

It's the only option that works with Next.js
It's free forever
It provides database, auth, and real-time in one integrated platform
It's required for Vercel deployment

What's the approximate monthly cost to start a SaaS with the recommended stack?

~$1/month plus Stripe transaction fees
$100-200/month
$500+/month
Free tiers don't exist for serious projects

When should you add complexity like microservices to your stack?

From the start, to build proper architecture
When you have 10 customers
When you learn how to use them
When current solution is clearly breaking and you have revenue