Solo OS is a scalable, zero-backend platform for the global freelance economy. By processing contracts 100% client-side, we eliminate cloud server costs to create an infinite-margin moat. Features: • Interactive Bento Proposals (clients toggle scope & pricing) • Free Draft Watermarker • Professional Invoices & SOWs • Escalation Emails & Legal Notice. • Local E-Signatures Your data never leaves your device. Use the free tools forever, or pay a tiny flat fee per premium document.