How We Built an AI SaaS on the Edge for Nearly $0 in Infrastructure Costs (opens in new tab)

1. Introduction A few months ago, we started building Propoza, a tool that generates business proposals with AI for Brazilian freelancers and small business owners. The problem was practical: freelancers spend hours crafting proposals in Canva or Word, delivering generic documents that don't protect the project scope. The tool needed to be simple — the user describes the service, the AI structures a complete proposal with scope, timeline, and payment terms. The technical challenge: how do you...