If you can build it in a night, the subscription is a tax on your own inaction

The impulse

I use voice-to-text constantly. WisprFlow is good. It costs money every month. I looked at the subscription, looked at the feature set, and thought: I could build this.

So I built Commandment. Open-source, BYO OpenAI API key, runs locally. It took one night. Not a weekend. Not a sprint. One night. The result is not a perfect clone. It is exactly the tool I wanted, built exactly the way I wanted it, and it costs me fractions of a cent per use instead of a monthly fee forever.

That single night changed how I think about every SaaS product I use.

The pattern repeats

After Commandment, I needed a way to turn web pages, PDFs, videos, and audio files into clean markdown. I wanted to feed everything into AI context windows without copy-pasting and reformatting. The existing tools either cost money or did not handle all the formats I cared about.

So I built allmd. Maybe four hours total, spread across an evening while I was doing other things. It converts any URL, PDF, video, or audio file into markdown. Turn the whole universe into a skill. That is the tagline, and it is not an exaggeration. Anything I encounter online, I can now pipe straight into a context window.

Then I wanted a better way to read Hacker News. Not a reader app with half the features missing. A full client. Login, comments, upvoting, the news list, submitting posts. Everything. HackerTok happened the same way. Claude Code did the heavy lifting. I steered.

308 GitHub repos. Not all winners. Plenty of dead experiments and half-finished ideas. But every single one tested an assumption, taught me something, or scratched an itch that no existing product was scratching properly.

The calculus has inverted

The old wisdom says do not reinvent the wheel. That advice assumed the wheel took months to build. It assumed the cost of building was dramatically higher than the cost of buying. It assumed you were trading engineering time against a ten-dollar monthly subscription and the subscription would win every time.

That assumption is dead.

When AI compresses a weekend project into a few hours, the math changes. A ten-dollar-a-month subscription costs you $120 a year. Over five years, that is $600 for a tool you do not own, cannot modify, and might shut down or raise prices at any time. The alternative is four hours of your evening and a tool you control forever.

The subscription is not buying you software. It is charging you a tax on your own inaction. You are paying because building felt too hard, and it does not feel too hard anymore.

The hidden advantage of owning it

The real benefit is not the money you save. It is the depth of understanding you gain.

When you build your own tool, you know exactly how it works. When it breaks, you fix it in minutes because you wrote it. When you want a new feature, you add it. When the upstream API changes, you adapt. You are never waiting on someone else's roadmap.

Subscription software is a black box. You file a feature request and hope. You hit a bug and wait. You outgrow the tool and migrate. Every dependency on someone else's product is a dependency on someone else's priorities, and their priorities are not yours.

Commandment does exactly what I need because I built it for exactly my use case. It does not have an onboarding flow, a pricing page, or a team management dashboard. It has the features I use and none of the features I do not.

When not to build

I am not arguing you should build everything. That would be absurd. Some tools are genuinely complex — database engines, payment processors, authentication systems with compliance requirements. You should not build Stripe.

The test is simple: can you ship it before the free trial expires?

If the answer is yes, build it. You will end up with something tailored to your needs, something you understand deeply, and something that costs you nothing ongoing. If the answer is no, the tool is probably complex enough that the subscription is genuinely earning its keep.

Most developer tools, productivity apps, and simple utilities fall on the build side of that line now. The threshold keeps moving as AI gets faster, and it is moving fast.

The real point

This is not about being cheap. It is about recognising that the cost structure of software has fundamentally changed. Building is fast. Subscribing is slow. Owning is powerful. Renting is fragile.

Every tool you build is a skill you sharpen, a dependency you remove, and an assumption you test. The 308 repos on my GitHub are not a portfolio. They are a habit. Build the thing. Ship it tonight. Own it forever.

The subscription can wait. You cannot.