Real niches, run through the full jynlab method. Pain signals, verdicts, revenue models. No hype, just signal.
A SaaS boilerplate saves you the first two weeks of setup. The question is whether that is worth $200-300 when AI tools can scaffold the same thing in a day.
The framework choice shapes every day of building. Next.js, Remix, TanStack Start, Astro, and SvelteKit compared for solo SaaS builders.
I ran a habit tracker app through the jynlab Product OS. 500+ competitors, 90% quit rate in 2 weeks, and a pricing ceiling of $4/month. Full teardown inside.
I ran a pet health tracker app through the jynlab Product OS. 50+ competitors, episodic usage, and zero willingness to pay. The full teardown and what to build instead.
You shipped the app. Users are signing up. But you have no idea what they do inside it. Website analytics vs product analytics, real pricing, and which to pick.
Your database choice outlasts every other decision. Supabase, Neon, PlanetScale, Turso, and D1 compared by free tier, engine, and when to use each.
Supabase Auth vs Clerk vs Auth.js vs Firebase Auth vs Auth0. Real pricing, real limitations, and the decision tree for solo SaaS builders.
Cost tracking, prompt management, fallback routing, caching. The 6 tools that keep your AI costs from eating your MRR, compared for solo builders.
The honest breakdown of payment tools for solo SaaS builders. Stripe, Lemon Squeezy, Polar, and Paddle compared by fees, tax handling, and when to use each.
Cloudflare vs Vercel vs Railway vs Fly.io vs Netlify. Real pricing, real limitations, and the one thing Vercel's free tier won't let you do.
Not which model is smartest. Which model fits your feature, your budget, and your user count. Real cost math for 1,000 users included.
5 AI coding tools compared for solo SaaS builders. Real pricing, real limitations, real decision tree. No sponsored picks.
The full setup in plain steps: make a join-the-list form, connect it to beehiiv, let AI read your numbers with the MCP, and show your posts on your blog. Part of the jynlab SaaS Tool Kit series.
Transactional vs newsletter email are two different jobs. The honest builder's map: Resend, beehiiv, Kit, and the cheaper alternatives, with real 2026 pricing.
I ran an AI content repurposing tool through the jynlab Product OS. A wall of free and open-source tools killed it at Filter 1. Here is the teardown, the wrong customer, and the free tools I use instead.
I ran a SaaS idea, a simple email tool for AI builders, through the jynlab Product OS. It died at the second filter. Here is the full teardown and the one asset worth keeping.
I ran a ClassPass-for-cafes idea through the jynlab Product OS. It killed the idea in one afternoon, and pointed to a better one.