The product I built ended up running my business — was that the plan?

Microsaas refers to a tiny software subscription service run by just one or two people, usually built to solve a very specific problem. This founder built such a tool, and as it gained users and revenue, the product became the center of gravity for the whole business. Instead of the founder deciding what to build next, the product's existing shape — its users, its gaps, its demands — started making those decisions.

This dynamic is familiar to many solo operators: you start out thinking you're building a product, but eventually the product is building your schedule. Every week gets organized around what the product needs, not what you originally envisioned. The post hints that noticing this shift consciously — and deciding whether you're okay with it — is itself a meaningful business decision.