Introduction
You don’t need a massive budget to run production infrastructure. With smart choices, $100/month can support a real startup with hundreds or thousands of users. This guide shows you how to build production infrastructure on a budget.
The $100/Month Stack
Complete Architecture
┌─────────────────────────────────────────────────────────────┐
│ $100/Month Production Stack │
├─────────────────────────────────────────────────────────────┤
│ │
│ ┌─────────────────────────────────────────────────────┐ │
│ │ CDN + Static Assets │ │
│ │ Cloudflare Pages / Vercel │ │
│ │ ($0-20) │ │
│ └─────────────────────┬───────────────────────────────┘ │
│ │ │
│ ┌─────────────────────▼───────────────────────────────┐ │
│ │ Next.js App (Serverless) │ │
│ │ Vercel Pro │ │
│ │ ($20) │ │
│ └─────────────────────┬───────────────────────────────┘ │
│ │ │
│ ┌─────────────────────▼───────────────────────────────┐ │
│ │ PostgreSQL + Auth │ │
│ │ Supabase Pro │ │
│ │ ($25) │ │
│ └─────────────────────┬───────────────────────────────┘ │
│ │ │
│ ┌─────────────────────▼───────────────────────────────┐ │
│ │ Email + Notifications │ │
│ │ Resend │ │
│ │ ($0-10) │ │
│ └─────────────────────────────────────────────────────┘ │
│ │
│ Domain + SSL: ~$12/year │
│ Monitoring: Free tier │
│ │
│ TOTAL: ~$55-70/month │
│ │
└─────────────────────────────────────────────────────────────┘
Detailed Costs
Monthly Breakdown
# $100/month budget allocation
budget:
total: "$100"
recommended:
vercel_pro: "$20"
supabase_pro: "$25"
resend: "$5"
domain: "$1/month"
monitoring: "$0 (free tiers)"
contingency: "$49"
total_recommended: "$55-70"
with_contingency: "$100"
Detailed Vendor Costs
# Vendor breakdown (2025)
vercel:
free_bandwidth: "100GB"
overage: "$0.15/GB"
recommend: "Pro at $20 (no overage worries)"
supabase:
free_db: "500MB"
free_auth: "50K MAU"
pro_db: "8GB"
recommend: "Pro at $25"
resend:
free_emails: "3,000/month"
overage: "$0.001/email"
recommend: "$5/month covers 50K emails"
domain:
.com: "$12/year"
.io: "~$40/year"
Scaling Within Budget
At 1,000 Users/Month
# 1K users can stay on free tiers
stack:
frontend: "Vercel Free (100GB)"
database: "Supabase Free (500MB)"
auth: "Supabase Free (50K MAU)"
storage: "Supabase Free (1GB)"
email: "Resend Free (3K)"
total_cost: "$12/year (domain only)"
At 10,000 Users/Month
# 10K users - need paid tiers
stack:
frontend: "Vercel Free (100GB) - still enough"
database: "Supabase Free (500MB) - might need upgrade"
auth: "Supabase Free (50K MAU) - enough"
storage: "Supabase Free (1GB) - might need upgrade"
email: "Resend $5"
total_cost: "$5/month"
At 100,000 Users/Month
# 100K users - need full stack
stack:
frontend: "Vercel Pro - $20"
database: "Supabase Pro - $25"
storage: "Supabase Pro - included"
email: "Resend $20"
cdn_extra: "~$10 if needed"
total_cost: "$75-85/month"
Example Configurations
Budget Option ($50/month)
# Maximum savings - $50/month
tier:
name: "Budget"
monthly: "$50"
frontend:
- "Cloudflare Pages (FREE)"
- "Or Vercel Free"
backend:
- "Supabase Free"
- "Cold start: some"
features:
- "PostgreSQL database"
- "Auth"
- "Realtime"
- "Basic CDN"
limits:
- "DB: 500MB"
- "Bandwidth: 100GB"
Balanced Option ($75/month)
# Balanced - $75/month
tier:
name: "Balanced"
monthly: "$75"
frontend:
- "Vercel Pro - $20"
backend:
- "Supabase Pro - $25"
extras:
- "Resend - $5"
- "Monitoring - $0"
- "Domain - $1"
- "Buffer - $24"
benefits:
- "No cold starts"
- "More storage"
- "Better support"
Premium Option ($100/month)
# Premium - $100/month
tier:
name: "Premium"
monthly: "$100"
frontend:
- "Vercel Pro - $20"
- "Cloudflare Pro - $20 (optional)"
backend:
- "Supabase Pro - $25"
- "Neon Pro - $19 (optional)"
extras:
- "Multiple services"
- "Better limits"
- "Priority support"
Cost-Saving Strategies
1. Use Free Tiers First
# Start free, upgrade when needed
strategy:
stage_1:
- "Vercel Free"
- "Supabase Free"
- "Cost: $12/year"
stage_2:
- "Keep free tiers"
- "Upgrade when hitting limits"
- "Cost: $5-20/month"
stage_3:
- "Full Pro stack"
- "Cost: $50-100/month"
2. Optimize Resource Usage
# Reduce costs through optimization
optimizations:
- "Use SSG instead of SSR"
- "Cache API responses"
- "Optimize images (WebP)"
- "Minify JS/CSS"
- "Use proper pagination"
- "Archive old data"
3. Monitor Usage
# Track spending
tools:
- "Vercel Analytics (free)"
- "Supabase Analytics"
- "Cloudflare Analytics"
- "Set budget alerts"
Key Takeaways
- Can start for free - $12/year for domain only
- $50/month is comfortable - Full-featured production
- $100/month is luxurious - Premium features
- Scale as you grow - Don’t overbuy early
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