The Empirical Tech Stack for Solo SaaS Founders.
Real-world database cost math, payment gateway fee teardowns, and zero-cost serverless blueprints to maximize your software profit margins.
Interactive SaaS Payment Gateway Fee Calculator
Simulate net take-home revenue across Stripe, LemonSqueezy, Polar, and Paddle at your target MRR.
Audited Stack Guides & Unit Economics
Hard data on compute invoices, cold start latencies, and MoR tax liabilities.
Open-Source Auth in 2026: Clerk vs Lucia vs Better-Auth for SaaS
Detailed evaluation of Better-Auth, Lucia Auth, and Clerk for SaaS authentication, cookie sessions, passkeys, and pricing traps.
Stripe vs LemonSqueezy vs Polar: Micro-SaaS Fee Comparison 2026
Empirical fee calculation and Merchant of Record (MoR) analysis comparing Stripe, LemonSqueezy, and Polar for solo founders.
Next.js vs Astro for Micro-SaaS in 2026: Speed, Hosting Cost & SEO
Comprehensive benchmark comparing Next.js and Astro for building profitable micro-SaaS products, edge latency, Vercel compute bills, and search visibility.
Self-Hosted Supabase vs Managed Neon Postgres: Real Cost Math
Cold starts, connection pooling limits, compute pricing, and operational maintenance comparison of self-hosted Supabase vs Neon Serverless Postgres.
The $0/Month Micro-SaaS Stack: Cloudflare Pages, Turso & Resend
Step-by-step architecture blueprint to run a production micro-SaaS application with zero recurring hosting, database, or email costs.
Frequently Asked Questions
What is a Merchant of Record (MoR) and why do solo founders need it?
A Merchant of Record (like Polar or LemonSqueezy) acts as the legal seller of your software, automatically calculating, collecting, and remitting global sales tax (VAT, GST) across 100+ countries so you don't have to hire international tax lawyers.
Can you really host a micro-SaaS for $0/month?
Yes. Cloudflare Pages provides unlimited static bandwidth, Turso provides 9GB of free distributed SQLite storage, and Resend provides 3,000 monthly emails. You only incur costs when scaling past thousands of active paying users.