C-TPO

Behind the site Β· a product program

Streng geheim

Operatie Klompje

AI score 3.9/5 me. Idea 2/2 Β· Direction 0.9/1 Β· Words 1/2. My idea, my mom, my process. Claude drew the cartoons and drafted with me

A product with exactly one customer: my mom. She's small, even in clogs, with giant courage and giant worry, and most of what she knows about my work comes from the news. This is the product process I use at work, done for her, in the open.

Why in the open? I learned how to do product discovery properly far too late, and more people should see what it looks like on something real and small. My kids are learning it alongside. Top secret, and on the internet. Nothing is secret these days.

What isn't secret is the aim: I want my mom to know enough about what I do to feel comfortable, but not so much (AI, cybersecurity, terror) that it adds to the worry. Every note has to pass that test.

From the site's goal down to this week

The site has a goal: one site, with a different front door for each kind of reader. The first reader who isn't a tech person is my mom, in Dutch. That goal cascades into this program, with its own altitude:

  1. Site goal: the whole site, by reader. Mama first.
  2. Program: a calmer, prouder Mama, who knows what I do and that I enjoy it before the TV tells her otherwise.
  3. How we'll know: leading signals on every note, and fewer worried calls over the weeks.
  4. Bets: four hypotheses, below.
  5. This week: a postcard in the family group text.

Her day

Her day has no fixed clock. Breakfast can happen under the moon. The TV is on whenever she's up: housewives shows, TV court, then the news, the loud kind. Somewhere in all that noise, a story connects to me, and the phone rings with a loaded question.

A five-panel strip of Mama's day. 1. Up, whenever: in bed under the moon with the sun also up, a clock with its numbers all over the place, saying Breakfast time! 2. TV on, whenever: on the couch with a snack, watching housewives shows and TV court. 3. News, all day: a BREAKING banner reads EVERYTHING IS FALLING APART, with clouds gathering. 4. It hits home: a headline says AI COMING FOR TECH JOBS, and she pictures little Machoo in the rain with his things in a box. 5. The call: she asks, worried, Machoo, are you losing your job now, or in five days? He thinks: Oh boy. (Either answer ends the world.)
My dramatic interpretation. Not far off.

Today I wait for the call, then deflect: mostly an "oh boy" and a change of subject. It gets us off the phone. It doesn't end the worry.

There's a second loop, and it runs the other way. When I say anything in Dutch, she emails her brothers and the family about how proud she is of her Machoo. That loop starts with me, not the TV.

The problem

Mama's picture of my working life comes mostly from loud news, and from me not giving her anything to weigh it against. So she worries, and I only hear about it once it's a loaded question. The competitor isn't another website. It's the TV.

Four bets

Written in Alex Cowan's hypothesis format, so each one can be wrong.

Above the line

BJ Fogg's behavior model says a behavior happens when a prompt arrives while motivation and ability are high enough together: above the action line. Browsing my website sits far below it, and no amount of nagging fixes that. The worried call sits well above it, prompted by a headline and fuelled by fear.

An analogy I heard once and kept: if your product is a cure for cancer, the experience doesn't have to be great. People will crawl through the Shawshank tunnel for it. If you're selling a stick of gum, it had better be the easiest thing anyone has ever done. To Mama, browsing my website is a stick of gum.

So the door is the UX. The test has to sit way above the line: one tap, in Dutch, in a thread she already reads, prompted by me, fuelled by pride. And fun, and a bit dramatic, because she likes that.

A Fogg behavior chart: motivation up, ability across, with a curved action line. Below it: browse my website, read an English blog post. Above it: TV on whenever, call Machoo worried (prompt: a headline, fuel: fear), tap Ja graag, forward it to her brothers (with an arrow: I email her the pictures), and at the top right, the postcard in the group text (prompt: my text, fuel: pride, in Dutch, one tap).

The smallest test: a postcard

No app, no login, nothing built. A postcard, as two pictures in the family group text. A postcard because it's funny, and because it's true: we're far apart. The front is the cartoon. The back is my note, in my Dutch.

Not Dutch? Flip each card over for the English. Mama gets the Dutch.

Postcard front: Mama in a winged lace cap, striped apron and clogs, holding up her phone and saying Machoo! Ik ben zo trots! Next to her, little Machoo in a blue suit and clogs. Her tag: echte maat klein, zelfs op klompen; moed reuzengroot; zorgen ook reuzengroot. His: echte maat reus, niet voor mama. Groeten van Machoo!

A little Dutch: Add -je to a Dutch word and it gets small and dear. Klomp is a clog. Klompje is a little clog. So is the operation.

Postcard back, handwritten in Dutch: Lieve Mama, I'm learning a little Dutch every day and this is my first postcard. My work is fun: I help big companies with their computers, and AI is my clever helper. Don't worry, it isn't taking my job. More little messages soon, with drawings. Rest, cleanliness and regularity: I'm working on it, and so are the kids, a bit. Big kiss, Machoo. Stamped STRENG GEHEIM, Operatie Klompje. Don't tell anyone (except the family).

A little Dutch: "Rust, reinheid en regelmaat" is an old Dutch rule for a good home, and one of Mama's favorite sayings. A "dikke kus" is a fat kiss, which is how Dutch moms sign off.

Behind it there's a small Dutch page with one button, "Ja, graag!": yes please, more of these. It's a fake door, a Wizard of Oz test. Nothing is built behind it, and I do the rest by hand. I'm not linking it here until the test is over, so that button still means Mama said yes.

If she asks how to send the picture to the family (my guess: she will), I'll email it to her so she can just hit forward. That's the by-hand version of a "send to the family" button. The button only gets built if she asks every time.

A note on my Dutch: I'm not conversational yet, and that's the goal. Lots of Duolingo, lots of vocabulary, and a healthy fear of speaking it. This program is quietly for me too.

The customer letter: my guess at her reply

Working backwards means writing the letter you hope the customer sends you after it works, before you build anything. Here's mine, as the postcard I hope she'd send back. It's a guess, written before I sent anything, so the real reply can prove it wrong.

A guessed postcard back from Mama, handwritten in Dutch: Dear Machoo, I'm so proud of your Dutch! I sent your little messages straight to my brothers and the whole family: my Machoo is a little Elon Gates with his computer thingies! I didn't know you did so many crazy things with computers and AI. It sounds fun, and you sound happy. Now I worry more about the world than about you, haha! Rest, cleanliness and regularity, eh? For the kids too. Big kiss, your Mama.

A little Dutch: "Elon Gates" isn't a typo. That's how she talks. "Computerdingens" is computer thingies, one word, because Dutch glues words together.

My guess, not her words. "A little Elon Gates" is very much how she talks.

How we'll know

The worried calls are the outcome, but they're slow and noisy. One dramatic news week skews a month. So I watch leading signals on every note, and let the calls confirm it later.

Leading, per note

  • She replies at all
  • She laughs: a β€œhaha”, an emoji, a voice note
  • She replies in Dutch
  • She asks a question back
  • She forwards it to her brothers
  • She asks how to send it on
  • She taps β€œJa, graag!”

Lagging, per week

  • Fewer worried calls than before
  • Calls that start with my news, not the TV’s
  • The family mentions it
  • The family starts following along

If the leading signals light up and the calls don't move, the notes are fun but not reassuring, so I'll change what they say. If the signals stay dark, I'll change the format before blaming the idea. Results here in four weeks.

Where it could end up

My read: a pipe, with a museum behind it. The texts are how she and I talk. The museum is a place where she can send the family to catch up, and where the Dutch family can follow along. That makes the family a second reader, worth getting to know before I build it. Nothing gets built until the four weeks say so.

Walking the kids through it

My kids know the customer, so they're learning the order with me: who is she, what's the moment, what does she do today, what do we believe, write the letter, find the smallest test, and count something. Build nothing until there's a number.

Standing on shoulders

The words, for kids

Customer
The person you're making it for. Here: Oma.
Day in the life
Draw their day, so you can find the best moment to help.
Hypothesis
A guess you can check.
Customer letter
The note you hope they'll send you when it works. Written first.
Fake door
A button for something that doesn't exist yet, to see if anyone presses it.
Wizard of Oz
It looks like a machine, but a person is doing it behind the curtain. (Dad emailing the pictures.)
Leading signal
An early clue it's working: Oma replies, laughs, writes back in Dutch.
Lagging signal
The slow proof: fewer worried phone calls.

The postcard is also on the wall in Arts and crafts. The rest of what feeds this site is on the credits page.

For people short on time

TL;DR

Matt thinks out loud here about technology, mostly how teams decide what to build, fix and protect.

The first series argues that security gets better fastest when the teams that each hold part of the answer share it earlier. Part 2 says most critical findings aren't: seven questions tell you which, and the answers live with other teams. Clay first, chisel later is about roughing out the whole thing before polishing the parts.

Every piece says how much AI helped, and the site is built in the open: a roadmap with a big picture (only Now is a promise), a changelog with a monthly review, and the product work itself, like Operatie Klompje, a postcard-sized product for one customer: his mom.

There's also an Arts and crafts wall, because not everything has to be serious. The discussion happens on LinkedIn.

Start with Part 1 β†’
AI score 2.7/5 me. Idea 1.8/2 Β· Direction 0.4/1 Β· Words 0.5/2. AI drafted these from the site

Updated October 18, 2026. A TL;DR for the whole site, by reader, is an idea by Matt at ctpo.io. Copy it freely, just link back.

Streng geheimOperatie Klompje

Postcard front: Mama in a lace cap, apron and clogs, proud of little Machoo.
The customer: my mom. Small, even in clogs. Giant courage, and giant worry. Most of what she knows about my work comes from the news.