Build vs. Buy: When Custom Software Actually Makes Sense

"Should we build this or just buy something?" is one of the most consequential — and most rushed — decisions a growing company makes. Get it wrong in either direction and you pay for years.

Here's the framework we walk clients through. Spoiler: the answer is usually "buy the commodity, build the differentiator."

Buy when it's a solved problem

If thousands of companies need roughly the same thing and a mature product already does it well, buy it. Email, payments, CRMs, accounting, help desks — these are commodities. Building your own is almost always a distraction from the work that actually makes you money.

The test: would a custom version give you a real advantage, or just a version you have to maintain yourself? If it's the latter, buy.

Build when it's your edge — or your glue

Custom software earns its keep in two places:

• Your differentiator. The workflow, product, or experience that's genuinely specific to how you win. No off-the-shelf tool will fit it, because it's yours.
• The glue between systems. The integrations, internal tools, and automations that connect the products you bought into something coherent. This is where off-the-shelf stops and custom quietly delivers enormous leverage.

Most companies over-build commodities and under-build glue. The glue is where the compounding returns live.

Watch for the "almost" trap

The most expensive tool is the one that almost fits. You bend your process to match it, bolt on workarounds, and pay in a thousand small frictions forever. When you catch your team saying "we just work around that," that's a signal worth pricing out a custom alternative.

A healthy stack is a mix

The right answer is rarely all-build or all-buy. It's a considered mix: buy the commodities, build the differentiator and the glue, and make sure the whole thing is documented and owned by you.

That's the boring, durable way to build a software stack that supports the business instead of fighting it — and it's exactly the kind of decision we're happy to think through with you.