Vertical SaaS for Trades & Blue-Collar

Ask HN: Building a solo business is impossible?

Hacker News · goncharovart · Posted April 19, 2026 · Reviewed September 1, 2026

“Shipped a B2B vertical platform in 12 months alone (paying customers now). What actually made it possible was: three prior jobs where I learned the boring parts (auth, payments, ops, CI), domain expertise I happened to have from family (HVAC engineering, which is what the product vertical turned out to be), plus forums and OSS libraries that are effectively hundreds of past engineer-years I'm standing on.”

This is the entry shipped and sold, by someone whose point is that the software was not the scarce part. HVAC is one of the trades named above, he built for it alone in twelve months, and what he credits is domain knowledge he happened to have through family plus three earlier jobs spent learning auth, payments and ops. Take it as a costing of this entry rather than as demand for it: a builder without a tradesperson in the family is not one framework away from the same result, and Medium difficulty does not price that in. He also names what stayed hard after launch — one person cannot sell and ship at once, so the code accrues bugs during the weeks spent selling. What is missing is most of the verification. He names neither the product nor what number paying customers now stands for, so none of it can be checked; the entry above is not the platform he built, only the same vertical. And nothing in the thread pushes back on him: the single reply he received is flagged dead and carries no text. He is arguing about whether solo businesses are possible, not describing something he wants sold to him.