The work

Systems in production, with the numbers attached.

Six of these have a full case study: what was stuck, what I built, what changed, and what the numbers do not say. The rest are live things you can open. Every screenshot on this page is the real screen.

Case studies

6 case studies
Mack, for CMS Surveyors screenshot
Home energy surveys · UK

Mack, for CMS Surveyors

An AI operator went live inside the business in May, and by August the operations director was building his own automations on it without me.

emails triaged since going live in May
10,715
agent sessions in the last seven days
3,409
standing automations the team now runs
40
Read the case study
BookerBot screenshot
Multi-tenant voice and messaging platform · UK

BookerBot

One system answers the phone, the texts and the WhatsApp for five businesses, and books the job while the customer is still in the conversation.

median from an inbound message to the agent’s reply
8 sec
from a web form submission to a live outbound conversation
~2 min
client workspaces on one codebase
5
Read the case study
Thingiverse Labs screenshot
The world’s largest 3D printing community

Thingiverse Labs

A platform too big to move fast got a community surface that ships in days, built by one person on a subdomain.

unique visitors in its first 15 measured weeks
49,858
of them to one partner challenge, run with Raspberry Pi
16,712
changes required to the legacy platform
Zero
Read the case study
SUPA screenshot
Grocery delivery · South Africa

SUPA

The marketing team generates its own on-brand content, because the brand guidelines are compiled into every prompt.

brand-locked images generated for SUPA
693
content pieces drafted for review
527
approved, scheduled or published by the brand team
107
Read the case study
Do Gooder screenshot
Charity effectiveness research · UK

Do Gooder

A question about where donations actually go became a public database that grades UK charities on the accounts they file, not the adverts they run.

UK charities graded on their filed accounts
14
head-to-head comparisons, every pair of the fourteen
91
live flag rules, each with its threshold published
6
Read the case study
EPC Guide screenshot
Landlord compliance · England and Wales

EPC Guide

A 27.6 million record public register became a postcode box that tells one landlord which measure moves their house to band C and what it costs.

homes resolved out of 27.6M public certificates
19.7M
organic clicks in 89 days, from 170,180 impressions
2,345
live pages, 318 of them one per local authority
518
Read the case study

Also running

9 builds
Kern screenshot

Kern

The AI operating system that runs my business. Persistent memory, real tool access, production responsibilities. Everything else on this list is built and maintained by it.

Claude Agent SDK over a Postgres state machine. No direct database connection: schema migrations included, everything moves over HTTP.

158 Postgres tables, 100% RLS · 125 days continuous production

reescalder.com/meet-kern

FirstFlag screenshot

FirstFlag

Names the care homes that are about to be downgraded, before the downgrade. It watches the CQC register for homes still rated Good overall whose leadership has already been marked down, and hands a turnaround consultancy the home, its directors and its switchboard.

Built on CQC's published register under the Open Government Licence. The four-year backtest is on the site, including the homes the flag missed, because a prediction sold without its miss rate is a horoscope.

9,062 CQC locations screened · flagged homes fell 13.2% against 9.0% over four years

firstflag.co

RegShield screenshot

RegShield

Writes the four policy documents the SEC's amended Regulation S-P now requires, tailored to the firm, for the small advisers who were quoted five figures by a compliance consultant to do the same thing.

The product and the guides that bring people to it run on the same system. It researches the rule, writes the article, links it and publishes, and nobody types the HTML.

31 pages live, 27 of them guides · four required documents per firm

regshield.co

Pitchsite screenshot

Pitchsite

Turns a client brief into an interactive proposal site instead of a PDF, and tells the agency the moment it gets opened. Built, launched, and left running: it works, and it never found its buyers.

Next.js on Vercel with a generated guide library underneath it. On the shelf here as a build, not as a business.

124 pages live, 79 of them guides

pitchsite.io

EmployerKit screenshot

EmployerKit

UK employment law in plain English: guides, compliance audits, and a tribunal risk calculator.

Content, application, deployment and its own maintenance all run inside the same system that maintains everything else here.

57 guides · 6 tools · 85 pages live

employerkit.com

The New Dad Playbook screenshot

The New Dad Playbook

A guide for new fathers from pregnancy to age two, sourced from NHS and paediatric guidance rather than forum folklore, and written to be readable at three in the morning by someone holding a baby.

Content, checkout and the email capture in one app. The article set is researched, written and published by the same system that maintains everything else on this page.

67 articles · 2 tools · 75 pages live

thenewdadplaybook.com

Inbox Autopsy screenshot

Inbox Autopsy

Paste a domain and it tells you, in about fifteen seconds, why your cold email is landing in spam. SPF, DKIM, DMARC, MX and blocklist status, each with the exact record to paste back.

Every answer is a live DNS lookup at request time, not a cached score. No signup, because a signup wall on a fifteen-second check is a way of not answering the question.

inboxautopsy.levityleads.com

Levity screenshot

Levity

The agency. AI systems and lead generation for SMBs, run by one person and a set of agents rather than a payroll.

Delivery is done by the agents. The headcount is one.

£100k bootstrapped, zero employees

levityleads.com

The 3D gallery screenshot

The 3D gallery

A walkable first-person gallery where every artwork on the wall is a real site I built, and the focused one is a live, interactive embed rather than a screenshot.

React Three Fiber and three.js, built on the dependencies the site already had.

WebGL, nine pieces, zero new dependencies

reescalder.com/gallery

Recognise your own operation in any of these?

Every one of them started as somebody describing the thing that annoyed them most. Thirty minutes is enough to tell you whether yours is fixable and roughly what it would take.