I think there's a fairly common story that goes like: two people, founders, spend a few months hacking on an idea together, without getting paid, build a functional MVP, run a beta, get positive feedback from beta users, maybe start making revenue, enough to have confidence in product-market-founder fit, want to start taking salaries so they can work on the nascent product full-time, reach a level of codebase complexity where adding another developer would add a lot of value, decide the right path forward is to raise a seed round to launch and reach a revenue milestone in 12-18 months, raise enough money to pay the founders salaries + make a few hires...
And now you're in the situation where you have put in enough upfront work to have confidence in product-market fit but still choose to raise money and build out an initial team ahead of real revenue / traction.
And now you're in the situation where you have put in enough upfront work to have confidence in product-market fit but still choose to raise money and build out an initial team ahead of real revenue / traction.