6 min read
Critical Next.js update without taking production down
How to check whether your Next.js app is affected, choose the right security release and test critical flows before deployment.
Read the articleYou have paying customers
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.
Why it feels like this
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.
So every change is tested by your customers, in the live product, and you find out through support.
A few steps in the right order that only you know, and no way back when the fifth one goes wrong.
You change the price in one place and the invoice goes wrong in another. Nobody designed that connection — it just grew.
No test environment, so the only place to try something is where the customers are.
Which is manageable until you're ill, on holiday, or want to sell the company.
How we do it
01
Tests around whatever costs money when it goes wrong: payments, sign-in, anything that counts. Not around everything — around the expensive parts.
02
One click, with the same result every time, and a way back that's just as simple.
03
The same as the live product, with made-up data. There, you and I can be wrong without any customer noticing.
04
The things that sat untouched for six months because nobody dared. Now a mistake costs a rollback rather than a weekend.
How it works
The same amount every month. No hours to approve, and no invoice that turns out bigger than you expected.
You put the most important thing at the top. I build it, you test it, then we move on to the next thing in the queue.
Most tasks are done within 48–72 hours. Anything bigger gets broken down until it isn't.
No lock-in and no notice period. Pause between launches and pick up where you left off.
Price
You know what it costs before you start, and you still know in month three.
The safety net is usually the first request, and it pays for itself on the first change that didn't turn into an incident.
Subscription
SEK 29,900/month
Excluding VAT. No lock-in, no notice period, no setup fee.
Start the subscriptionVAT is added at checkout. You land in Slack straight afterwards.
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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.