Seven case studies, each with an honest status, dated screenshots and metrics that link to a source. This page also explains how to verify the evidence yourself.
field record, evidence and compliance risk in one workflow
A digital field record for Estonian farmers that checks 36 rules in real time, works offline and reaches the tractor driver through WhatsApp.
find UX friction before your users do
A public website audit product for collecting observations and priorities. We verify important findings in the browser before implementation.
a domain-neutral assistant kernel that carries two products
A kernel extracted from Mati (@leisson-labs/*) that runs a WhatsApp assistant with text, voice, images and documents; the same kernel will carry the iOS app and Operations OS.
a round-the-clock autonomous engineering swarm
A swarm of Claude Code and Codex CLI agents working on the AgroNutikas repos 24 hours at a time: token telemetry, cost attribution, quota circuit breakers and settings that change without a restart.
DJ sync and visualisation that stays phase-locked
A sync platform for professional DJ setups: Pro DJ Link, MIDI Clock/MTC, Ableton Link, OSC and Art-Net DMX in one core, a WebGL visualiser and a booth-grade UI in two technologies.
soundsystem workwear, not fashion
A clothing brand for the people who build the systems other people dance inside: four lines, a technical spec behind every seam, an e-commerce prototype in terminal aesthetics.
garage operations on a deterministic scheduler kernel
Not a calendar but a machine: a 12-stage deterministic tick, delay propagation across the whole board and a 32-fixture conformance suite that proves every scheduling decision by replay.
This is the Leisson Creative work list: seven case studies covering agricultural compliance and data, UX audit SaaS, assistant products, real-time systems, an e-commerce prototype and workshop logic. The list is complete rather than a selected highlight reel — what is a prototype or a concept appears here with the label it actually has.
| Evidence | Where to check it | What it proves |
|---|---|---|
| Live address | open the link in the case study header | the product works now, not once did |
| Screenshot date | the caption under the image | the image is fresh, not a year-old marketing view |
| Metric source | the link next to the metric | the number comes from the system, not from the copy |
| Status | the status table on the Lab page | the labels are defined rather than applied by feel |
| Machine-readable view | append .md to the address | the same content as plain text, without the marketing layer |
Because a link has to work. When a product's public address is down, or the product is private — for example a WhatsApp product whose Meta app is not public yet — the case study sits here without an external link and the status says so directly. A broken link in a portfolio is worse than a missing one.
Start with the case study closest to your situation and read its decisions section. If the same pattern fits, write and name that case study in your message — then the conversation starts at scope and deadline rather than at an introduction.