Independent engineering · Free State, South Africa

Many branches. One pair of hands.

Software, field electronics and industrial machinery, designed, built and looked after by one engineer. Every lantern on this tree is real work. Hover or tap one to follow the sap to it.

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Live on the branches

Don’t just read about it. Play with it.

Seven products growing on the tree, each with a small working sketch of what it does. The sketches use made-up names and numbers; the products are real and running.

TradeJotLive
LiveBusiness software

TradeJot

Quote, schedule, invoice, follow up. The phone is the office.

A Telegram-and-web CRM for South African small businesses: shops, makers, services and trades. Message it the way you would message a client, or run the day from the web dashboard.

Built on
Node.js · Telegram · Postgres
For
Anyone who sends a quote or an invoice
Try it · example job
WerktydLive
LiveTime & attendance

Werktyd

Clock in with a glance. Payroll without the paperwork.

Workers clock in by face or PIN; owners get live timesheets and a one-click payroll export. Only a numeric face template is stored, never the photo, and the PIN is always there with no penalty for opting out.

Built on
Node.js · Postgres · Python (InsightFace)
Privacy
POPIA by design · encrypted at rest
Try it · example team
Seidr BeaconLive pilot
Live pilotFleet operations

Seidr Beacon

The phones already in your vehicles, turned into a fleet view.

See what is moving, what is parked, what has gone quiet and how far a trip still has to go. Tracking is visible on the phone, limited to declared working hours, and offline positions queue until signal returns.

Built on
Android · Node.js · SQLite · signed webhooks
For
Fleets · field service · deliveries · lone workers
Try it · pick a vehicle
Virtual DoorbellLive
LiveConnected living

Virtual Doorbell

A visitor opens a link. Your phone rings. You decide.

No wiring at the gate, no intercom handset, no app for the visitor. A printed code is the whole installation, and Telegram becomes the doorbell wherever you are. Video runs over a self-hosted relay so calls connect on real mobile networks.

Built on
Node.js · Postgres · WebRTC · Telegram
Price
Free tier · paid from R10 a month
Try it · ring the gate
Hand ControlFree download
Free downloadWindows 10 / 11

Hand Control

Your hand is the mouse. Your webcam is all it needs.

Point to move, pinch to click, make a V to scroll, and use both hands to rotate and zoom 3D models in SolidWorks, Fusion 360, Blender or Onshape (so far tested on recorded hand movements). Everything runs on the PC and camera images are never uploaded.

Built on
Python · MediaPipe · OpenCV
Version
1.2.5 · no admin rights needed
Try it · press to pinch the targets
FloraEarly access
Early accessAndroid companion

Flora

A phone buddy with a face, who remembers you.

She talks with you, learns who you are and remembers what matters. She thinks with your own AI key, so you pay the AI company only for what you use. What she learns about faces, and your AI keys, stay encrypted on the phone.

Built on
Android · Kotlin · on-device face and speech models
Price
Free · direct Android download
Illustration · tap her face
PipPlay now
LivePlay

Pip’s Habitat

A small creature to look after. Open it and say hello.

Pip lives in your browser: it moves, chirps and answers in short text. Make an account if you want it to remember you; delete everything again whenever you like. Nothing to download.

Built on
Node.js · Claude
Privacy
Minimal data · delete-everything button
Try it · play with Pip
The whole canopy

Every branch, still tended.

Shipped, in the field, or still growing. Statuses say exactly which. 15 branches

Browse the full catalogueApps, engineering & services

Since 2018

RND Automation

Bagging, screening and packaging plants for agriculture and mining, from the first drawing to the service call afterwards.

SolidWorks · Delta PLC
Field-deployed

HekMotor

A connected gate controller and anti-theft alarm inside the motor’s own box. Opens by call, SMS or local dashboard.

ESP32 · GSM · OTA
In production

Iron & field

Centre-pivot irrigation controllers and LoRa links that reach kilometres past the last cellular signal.

Arduino · ESP32 · LoRa
Sample Seidr Sort stock record
Available

Seidr Sort

Identify items, review price sources and keep track of stock across your shops.

Retail · pawn shops
Live

TradeJot

Quote, schedule, invoice, follow up. A Telegram-and-web CRM for South African small businesses.

Hosted SaaS
Live

Werktyd

Face-scan attendance, live timesheets and a payroll export, with POPIA built into the design.

Hosted SaaS
Live pilot

Seidr Beacon

Consent-led fleet location and trip progress using the Android phones already in company vehicles.

Android · direct download
Live

Virtual Doorbell

A visitor opens a link and your phone rings on Telegram. See them, speak to them, decide.

From R10 a month
Free download

Hand Control

Use your hand as the mouse on Windows, with an ordinary webcam. Two hands turn 3D models.

Windows 10 / 11
Early access

Flora

A face for your Android phone that talks with you and remembers what matters.

Android 8+
Live

Pip’s Habitat

A small creature that lives in your browser. Look after it, talk to it, make an account if you want it to remember you.

Play in your browser
Live · internal

Vera

The office brain of our own engineering works. She reads supplier invoices and asks before anything that matters.

Private deployment
Released

NovaSync

A Paper plugin that turns a Minecraft server into a managed environment, with a live web dashboard and scheduled backups.

Paper · 1.21.x
Active development

Nova Quantum

A voice-controlled AI companion mod that fights, mines, smelts and crafts beside you.

Fabric · 1.21.x
Open questions

Research

Long-form engineering research. Sources cited. Null results reported as proudly as wins.

Essays & reports
Available

Websites

Business websites designed, built, hosted and maintained, with pricing in rand.

For small businesses
Meet the engineer behind the workThe studio story
Read the rings

Cut the trunk and count the years.

I’m Dewald du Toit. Each ring is a layer the studio grew, and the older wood still carries the load. Tap a ring to read it.

2017Heartwood

BSc Computer Science & Statistics at North-West University, Potchefstroom. Golden Key International Honour Society.

2018RND Automation

Co-founded a custom-machinery shop in the Free State. SolidWorks design, Delta PLC ladder logic, the electrical panel, commissioning and service callouts.

FieldElectronics that work past the last signal

Arduino pivot controllers, farm-scale LoRa networks and HekMotor gate control, built for dust, distance and patchy networks.

RunningSoftware in daily use

TradeJot and NovaSync, with Nova Quantum growing beside them. Designed, written, hosted and maintained end to end.

2026New growth

Werktyd, Virtual Doorbell and Hand Control launched this year, with Seidr Beacon in a live pilot and Flora in early access.

BarkThe research edge

Long-form questions at the outside of the trunk, where new wood is laid down: sources cited, null results reported honestly.

Something worth
building properly?

Tell me what is eating your time. You get a straight answer, a clear scope and a quote in rand, from the person who will actually build it.

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