You built it with AI.
I make sure it holds up.
I’m Calvin Kennedy, a software engineer in Newcastle. I check the parts you can’t see, the code, the data and the security, and tell you in plain words what to fix first.
Tell me what you built How I work
Calvin Kennedy.
I’m a software developer in Newcastle, Australia. My projects span developer tools, Discord bots, physical products and health software.
This is where I share the products and the decisions behind them.
More about me Career & background
BESF
I built a factory to finish what AI started.
Plan, build, inspect, prove. The original case study of a repeatable process for checking generated apps.
Read the case studyAcross the work.
Explore projectsIdeas & work
All writingCollection dates are assigned for reading order. Publication details are on each article.
A new kind of company just became possible
The check you didn’t know to ask for
The reel sold dinner. Your AI built homework.
Your agent wrote the app. You got the QA job.
Stop explaining the same thing twice
Your AI can make 500 videos. Which 495 should never exist?
AI can make a thousand posts. Make it prove one thing happened.
Stop asking AI for posts. Give it a world that can surprise you.
Your agents gave you homework
The bug shouldn’t need you twice
Ten apps. One you.
Which job gets the expensive AI?
Can AI give you your evening back?
Build the help. Measure the burden.
What will you actually do next?
Make the decision once
Three openings. One demo.
I tried to give an AI agent real authority. The model wasn’t the hard part.
The browser is becoming the API for every app
How to let an AI use your browser without watching every click
Your agent finished. You’re still working.
What should 48 AI checks buy you?
Keep the big model. Change its job.
The AI finished. You’re still working.
I liked the site. The logo needed to catch up.
I want software that brings its own proof
You approved the message. Then the agent improved it.
My projects can share code. They cannot share a customer.
We can storyboard everything except the surprise
A village that can hold a grudge. And change its mind.
The dashboard says zero. Nobody measured it.
The fairness test that already knew who should win
Should you get less credit because AI made it easy?
AI can write the report. Who has to read it?
Why should every agent learn the same lesson again?
JustSwipe: the agent should earn the interruption
I want personal AI to learn the shape of my life
Judgement isn’t a permanent hiding place
When work is optional, ambition doesn’t disappear
AI is bigger than the apps selling it
Built something
with AI?
Send me what you built and what is worrying you. I look at how it is built and reply with what I would fix first, and a quote. Fixed price, agreed before any work starts. Tell me what you’ve built and I’ll reply with a quote.
Tell me what you built