The Solo Founder Tech Stack That Will Not Kill Your Margins

One of the quiet killers of bootstrapped profitability is tool sprawl. A $49/month tool here, a $29/month tool there, and suddenly you are spending $600/month on infrastructure for a product generating $1,000 MRR. Here is how to build lean.

Database and backend

Supabase is the best choice for most solo founders — it gives you Postgres, auth, storage, and real-time subscriptions for a fraction of what building it from scratch would cost. The free tier covers most early-stage products comfortably.

Frontend and hosting

Next.js on Cloudflare Pages or Vercel keeps hosting costs near zero at small scale. The edge runtime on Cloudflare Pages in particular is fast and cheap — fixed-cost pricing means no surprise bills as traffic grows.

Payments

Stripe is the default, but Polar.sh and Lemon Squeezy are worth considering for solo founders who want simpler tax handling and less configuration. Lemon Squeezy's merchant of record model means they handle VAT and sales tax globally.

Email

Resend for transactional, Beehiiv or ConvertKit for marketing. Both are affordable at small scale and integrate cleanly with the rest of the stack.

The rule

Do not add a paid tool until you have validated you need it. Most tools have generous free tiers that cover you until $5–10K MRR. Every month you delay a $50/month tool is money that stays in your pocket — and a cost you will be grateful you avoided if the product does not work out.