About this business
Buildsheet.one is a web app for building beautiful cheat sheets and notes. Users drag markdown, chart and LaTeX blocks onto a grid to lay out their content, then export to PDF or Markdown — plus Kanban boards for organizing ideas. The product has 25 paying customers (57 users total) on a one-time lifetime-license model, all won through organic channels with zero ad spend. It runs on a modern stack: Next.js 15, React, TypeScript, MongoDB, Stripe, Tailwind and Resend, hosted on Vercel. The sale includes the domain, full source code, database, a Stripe + Vercel setup guide, a full admin panel (users, payments, refunds, discount codes, emails), a written handover guide and migration help from the seller, who is moving on to other projects. Ongoing cost is just the domain at about $20/year. A strong fit for a solo founder who wants a shipped, paying SaaS to grow.