The instrument rack.

Most operators build one product and try to grow it. I'd argue the more durable shape is a rack of small tools, each earning its row.

A rack has three properties a single product doesn't: - Defensibility shifts from any one tool to the collection. - Cross-sell becomes "use the next tool" instead of "buy the next tier." - Killing a tool doesn't kill the business.

This essay walks through how to build a rack: pick the wedge, ship the first three tools fast, instrument from day one.