New post every other week · 6 in the archive
§ Notes from the orchard

The journal.

Slow writing about building software that stays. Case studies, essays, occasionally a small confession when we get it wrong. Twice a month, when there's something to say.

Helder Cristal homepage
FeaturedCase study26 Oct 20257 min

From local to leading: how Bunduk helped Helder Cristal dominate the cleaning industry.

What happens when a saturated market meets a brand that actually means something? Fourteen months, a quote calculator, no paid ads, and a #2 Google ranking. Here's how it played out, week by week.

Read the case →
01
02
03
three failed MVPs
Essay17 Oct 20259 min

What we learned from building three failed MVPs.

Three projects we shipped, three projects no-one used. The post-mortems, the patterns, and the questions we now ask before we touch a keyboard.

agent · online
Refund order #84321?
Confidence 0.94. Done.
Conf 0.41, routing to Anna
AI13 Oct 20255 min

How can AI become a partner, not a tool?

The line between assistant and agent. What it changes for product design when the LLM is a colleague, not a function call.

§ Step 3 / 5
How big is the space?
< 100 m²
100 – 500 m²
500 – 2 000 m²
2 000 +
Build log03 Oct 202511 min

Building a quote calculator that pre-qualifies leads.

The HelderCristal one, in detail. The data model, the UX choices, the silly conversion improvements we found in the second week.

Bunduk
#2025-014
LineHoursTotal
Phase 1 · fixed€18,000
Retainer · monthly€4,500/mo
§ no hours · no surprises
Studio · Pricing21 Sept 20256 min

Why we don't do hourly billing.

Fixed-phase pricing, retainers, and the conversation we have on the first call. Why selling hours is the wrong contract for the work we do.

refund-router
Stripe
auto
manual
!
Tools05 Sept 20254 min

n8n, two years in: what we'd still use, what we'd replace.

An honest field report after running n8n in production for a dozen clients. The good, the workaroundy, and the now-obsolete.

Hero shop
10×
Walks away
Small studio
1.5×
Stays
Essay22 Aug 20258 min

Against the 10x engineer (and the agency that hires them).

Why small studios with regular people are quietly outperforming the hero-shop model. A defence of a small team in a small room.