Skip to content
Ketryon

You have paying customers

And now you don't dare touch the code

It works, people pay for it, and every change feels like pulling a block out of a tower. That's not cowardice — it's that nobody knows what will break, because nothing tells you. We make it safe to change again, without pausing sales while we do it.

Tell me where you are

Three questions, then you get a clickable sketch for free.

If something new is going into the product, you can describe it here first and get a clickable sketch of it. It's easier to say no to a sketch than to discover halfway through the build that it wasn't what you meant.

Why it feels like this

Nothing tells you when something breaks

A product with real customers in it becomes dangerous to change for five reasons, and none of them is about what the code looks like.

  • There are no tests

    So every change is tested by your customers, in production, and you find out through support.

  • Deploying is a ritual

    A few steps in the right order that only you know, and no way back when the fifth one goes wrong.

  • Everything is tied to everything

    You change the price in one place and the invoice goes wrong in another. Nobody designed that connection — it just grew.

  • There's no copy to practise on

    No test environment, so the only place to try something is where the customers are.

  • You're the only one who knows

    Which is manageable until you're ill, on holiday, or want to sell the company.

How we do it

Changes you can undo

  1. 01

    First, a safety net

    Tests around whatever costs money when it goes wrong: payments, sign-in, anything that counts. Not around everything — around the expensive parts.

  2. 02

    Deploying becomes a button

    One command or one click, with the same result every time, and a way back that's just as simple.

  3. 03

    You get a copy to try things in

    The same as production, with made-up data. There, you and I can be wrong without any customer noticing.

  4. 04

    Then we change what you wanted to change

    The things that sat untouched for six months because nobody dared. Now a mistake costs a rollback rather than a weekend.

What it costs

SEK 19,900 a month, one thing at a time

A subscription instead of a project: you have one active request on the go, I deliver it, you send the next. Pause when you don't need anything, cancel when you're done. No setup fee and no lock-in.

The safety net is usually the first request, and it pays for itself on the first change that didn't turn into an incident.

More from Ketryon

Just need a page or a video?

Two standalone services for when a whole subscription is more than you need — a landing page or a launch video, made by the same person.