Twelve systems across task queues, regulated SaaS, live markets, device fleets and AI agents.

Every one shipped to real users. Most have a live link. Each case study says what was built, what it cost, and where it still loses.

Cauli emblem, the Rust and PyO3 task queue for Python
01Open source

Cauli

Distributed task queue with a Rust core exposed to Python through PyO3. A drop in alternative to Celery that runs async, blocking and CPU bound tasks in one process.

Rust · PyO3 · Redis 7

ChatsX omnichannel inbox landing page
02AI agents in production

ChatsX

Unified Facebook, Instagram and WhatsApp inbox on the Meta Graph API, with LLM agents doing auto response, summarisation and intent routing.

Django Channels · Go · LangGraph

Veriport drug and alcohol test management system
03Regulated SaaS

Veriport

Compliance critical drug and alcohol testing platform for Canadian administrators, labs and medical review officers.

Django · Vue · Celery · AWS

UmbrellaX live markets
04Live markets

UmbrellaX

Prediction market platform. Order book, double entry ledger, wallets and settlement, with live market data pushed over WebSockets.

Django · PostgreSQL · Next.js · WebSockets

DroidFlow Android automation platform
05Device automation

DroidFlow

Desktop and web platform for orchestrating fleets of connected Android devices, with a visual graph builder for automation workflows and live mirroring.

Django · Node.js · Appium · scrcpy

Designed Word documents turning into HTML
06On PyPI

fancydocx

Pure Python OOXML rendering engine. No LibreOffice, no Word. Tables, shapes, floating images and fonts inlined into one self contained HTML file. Replaced a paid .NET dependency in production.

Python · standard library only

PageOptimizer Pro
07SEO platform

PageOptimizer Pro

Content optimization platform that analyses the top ranking pages for a term and returns a concrete edit list for yours.

Flask · Vue · Celery · Stripe

EnergyGigs marketplace
08Marketplace

EnergyGigs

Marketplace that matches energy sector professionals to projects, with instant access to consultants and job seekers.

React · Redux Toolkit · DRF · Docker

Omnia Resourcing sign in
09Staffing ops

Omnia Resourcing

Employee records and bulk communication platform for staffing agencies, with Pandas driven imports and reporting.

React · DRF · Pandas · Celery

TradeX trading dashboard with chart, order book, positions and order panel
10Trading platform

TradeX

Multitenant trading platform across binary flows, wallets, ledgers, liquidity, orders, market data, bots and admin controls.

Multitenant backend · React admin · Ledger

Erixa WhatsApp commerce bot
11WhatsApp commerce

Erixa

Per client WhatsApp commerce bot with Shopify order sync and a screenshot fraud pipeline: OCR, ELA, TruFor, CAT Net and Claude Vision review.

FastAPI · Claude Vision · Shopify · 360dialog

LadybugWorth AI reporting agent
12AI agent

LadybugWorth

Slack monitoring AI agent that extracts decisions, builds end of day reports, summarises threads and flags bug risk before release.

Django Channels · OpenAI SDK · Slack API

Proof beyond the headline projects.

ResumeFolio

Replaced a paid .NET document vendor with a Python native DOCX to HTML engine, custom CSS injection, OCR assisted reconstruction and pixel accurate resume output. The engine later became fancydocx.

PixelioWall

Image gallery backend managing 60K+ assets with semantic vector search, pgvector indexing, PostgreSQL query tuning and S3 storage paths.

Self hosted generation stack

FLUX, LTX 2.3 and Qwen on RunPod A100 and H100 GPUs with ComfyUI pipelines, fine tuned small language models with LoRA and PEFT, and cost per inference tracked against the vendor bill it replaced.

Production recovery work

Reverse engineered a deprecated vendor WebSocket protocol into a direct Python client in under three days, and found and fixed a Django remote code execution vulnerability before it reached production.

Need this kind of build?

Send the system, stack, bottleneck and deadline. I will reply with the first technical move I would make.