Subscriber Pilot
An email funnel and booking engine: double opt-in, drip sequences, fading discounts, a calendar checked against real availability, payment, metrics. One build serves several brands at once.
projects
What we have built
A selection of client projects since late 2013 and of the systems we both develop and operate ourselves — the latter show best how we work.
Client projects
- Blahobyty — Architecture and development of a next-generation information system for a hospitality platform — over twenty services on Kubernetes, asynchronous messaging over Kafka, single sign-on, declarative deployment.
- PhotoRobot — A system for photo processing and post-processing: automatic alignment of an image series around a rotating object, plus the batch operations that follow.
- Sirlan (France) — Collaboration on a web portal for controlling home automation.
- Call centre for small and mid-sized teams — A system that gets by with ordinary mobile phones — no expensive hardware exchange.
- Domain registrar interface — An interface for automated communication with domain registrars.
- Central SSO — An authentication and authorisation system with an LDAP backend.
Our own products and operated systems
These are not drawer projects — they run daily, have their users, deploy from a pipeline, and come with monitoring and a version history.
Studio Manager
Photography studio operations: subject records, contracts generated from templates, an image catalogue (DAM), selection and delivery of a shoot. Connected to the funnel but with its own responsibility and its own data.
Stereo Viewer
An embeddable WebGL viewer for stereo pairs — anaglyph, side-by-side, cross-eye. It joins a third-party page with a single <script> tag and attaches itself to matching images.
Distributed video workshop
A job queue with pull-based runners: the web submits work, a compute machine claims and processes it (transcoding, splitting 3D video, muxing audio). It grows one operation at a time, not one rewrite at a time.
News classification with a local LLM
A news feed is continuously evaluated by a locally hosted language model — relevance, topic, stance, signal strength. The data never reaches a third-party provider.
Time-series research platform
A backtest harness over historical data: strategies, indicators, sweeps across hundreds of variants, neural models, and above all an honest evaluation against a reference.
Observability and operations stack
Metrics, dashboards and alerts for our own infrastructure — from machine load to “this cron job hasn’t finished in 34 days”. A lighter take on the classic Prometheus stack.
In-house PKI and certificate management
A certificate authority, client certificates for mTLS, and automatic renewal of public certificates — without copying files around servers by hand.