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We design, fund and deploy technology products.

CoderKaine backs a limited number of projects. We come in very early, from funding to infrastructure and engineering, then at every stage of their development.

About

CoderKaine brings together investors and engineers. We back a limited number of projects, in which we commit both capital and engineering time.

Our place is upstream. We provide funding, infrastructure and technical support, then stay engaged at every stage of development.

Our founders have never left the field. They work daily on projects in production, from the lowest technical level up to applications delivered to users.

Our technical choices answer three criteria: performance, reliability and sovereignty. The solutions we design are controlled end to end, with no dependence on third parties.

Before every project, the same question: who really benefits from what we build, and at what human and environmental cost. Whether it serves a company or an individual, a product is only worth it if it stays useful and sustainable. We keep this measure at the centre of our choices, mindful of technology’s footprint and the dependencies the cloud imposes.

Model
Collective of investors & business angels
Intervention
Upstream, from funding to technical expertise
Involvement
Present at every stage of the project
Founders
On the ground, on projects in production
Expertise
End-to-end engineering · sovereign artificial intelligence · data control

Our values

Trust in humanity Technical rigour Sovereignty & security Digital sobriety Real usefulness

Where we have worked

Our founders did not start with CoderKaine. These are the organisations they have worked with technically, from banking to insurance, from HR software to engineering consultancy, from hospitality to interior fitting. What is learned there is not learned elsewhere — regulatory constraints, real workload, taking over an existing system one did not write. It is this experience that we now bring to the projects we back.

09 organisations · brands mentioned for the technical experience of our founders; they remain the property of their owners.

Our projects

A portfolio ranging from business SaaS to sovereign artificial intelligence.

Ongoing

07

What we are currently committing our capital and engineering time to.

In production

dismoi.dev

First European AI-native suite, designed and hosted in France

European customer support is being rewritten; we are building the foundation. A sovereign software ecosystem that unifies the whole company, from the first web visitor to the accounting invoice: a single source of truth, an in-house AI engine, and data that never leaves Europe. Controlled end to end, with no dependence on third parties, auditable on request.

In production

Athezza

High-end furniture & decoration, creating spaces for 30 years

Suite of B2B and B2C applications for a high-end furniture and decoration house. A platform tailored to each audience: a public catalogue to discover the collections, private sales reserved for members, a reseller area with negotiated rates, and a network of architects and decorators who specify pieces for their client projects, all orchestrated by a management back office.

In production

Maleus

AI platform for building internal applications

Enterprise AI platform that builds your internal applications: describe your need, validate at every step and keep full ownership of the code, deployed on your infrastructure. Designed for regulated environments, with data isolation and quality controls.

Website LinkedIn
In production

Arkhive

Long-term cold archiving, integrity-assured and traceable

Cold storage vault: Arkhive freezes data in a durable space, traces every access and every migration immutably, and ensures format readability over the very long term. Retrieval on demand, costs controlled at €/GB/month.

Website LinkedIn
In production

Home Energy

Household energy management

An energy management application that orchestrates everything electrical — solar panels, charging point, household needs — and lets you decide when energy is consumed: charging the car only from solar power, for example. Remote control.

View the demo
Open beta

vivre

Encrypted messaging reserved for real meetings

End-to-end encrypted messaging and group life — Signal Protocol one-to-one, MLS in groups. You only talk to people you have genuinely met: entry happens through a QR code in person, through a signed introduction from a shared contact or through an invitation link, never through a directory or an algorithm’s suggestion.

LinkedIn
Open beta

Meet Game

Meeting through play, then in real life

A dating application built around play: you challenge each other to mini-games and, depending on the outcome, you meet up for real. The online match is only a pretext.

LinkedIn

Already delivered

02

Products shipped, in operation.

In production

HiFiveWork

HR SaaS for small businesses and accounting firms

SaaS platform for HR management: leave and absences, schedules, payroll preparation, paperless expense claims and digital safe. Rapid deployment and mobile application.

In production

AfricaPaieRH

HR & payroll SaaS for the African market

HR & payroll SaaS designed for West and Central Africa: recruitment, leave, working time, payslips and an employee portal, compliant with local regulations.

Coming up

05

Under way but not yet public. The names can be decrypted below.

Confidential

Si — name hidden, confidential project

Confidential

Me — name hidden, confidential project

Confidential

CB — name hidden, confidential project

Confidential

— name hidden, confidential project

Confidential

MP — name hidden, confidential project

Some of our projects remain confidential until they reach production. To reveal them, give the name of our very first project: the one into which we put the most effort, which nearly reached production just before HiFiveWork.

Free software

Some of our tooling is public. These are not demonstrators: they are the building blocks we actually use, published under a free-software licence, with their repositories open to issues and contributions.

Published by us

02

Written here end to end, maintained here, and open to anyone who wants to use them.

  • identite-ts

    TypeScript · MIT · npm 0.3.0

    A photo of an identity document goes in, a typed JSON object comes out — and nothing leaves the browser. Reading is based on standards rather than on countries: the machine-readable zones of ICAO 9303 (TD1, TD2, TD3) are read for any issuing state, with the French 2D-DOC and NIR added on top. Each field arrives with its provenance and the status of its checksum.

  • gifust

    Rust · MIT · Homebrew

    Video to GIF from the command line, with a terminal interface for those who prefer to see what they are adjusting. Two passes with a computed palette, eight filters, a choice of dithering, segment trimming. macOS and Linux, installable via Homebrew.

Contributions

02

Repositories that are not ours, where we work all the same. The original repository is named each time.

  • bl1

    Python · JAX · Rust · MIT

    In-silico cortical culture simulator: a differentiable spiking neural network under JAX, conductance-based synapses, four scales of plasticity, a virtual microelectrode array, and a closed-loop replication of the DishBrain experiment. We work on it; the original repository remains its author’s.

    fork of m9h/bl1

  • tongo

    Rust · GPL-3.0

    MongoDB terminal interface: keyboard navigation, filtering by Mongo queries, document editing in the machine’s own editor, tabs to compare two collections. We use it daily and follow the original repository.

    fork of drewzemke/tongo

Test bench

identite-ts 0.3.0

The library runs here, in your browser, on an official specimen — or on the photo of your choice. The engines load on demand, from this domain; the image, for its part, goes nowhere.

Official specimen of a French national identity card, 2021 model, reverse side: fictitious name MARTIN Maëlys, with its three-line machine-readable zone.

specimen · 1600 × 1013 px

The specimen is a fictitious document published by the Ministry of the Interior, in the public domain. If you prefer to use your own document: it is read on the spot, it is sent nowhere, and nothing from it is retained after the analysis.

  1. engines loaded
  2. image prepared
  3. DataMatrix code
  4. binarised plate
  5. optical recognition
  6. machine-readable zone
  7. ICAO 9303 checksums

Contact

A question, a partnership, or a conversation with investors? Write to us.

Email: contact@coderkaine.com

The complete legal information — publisher, host, liability, data processing and intellectual property — is available at the bottom of the page.

Legal name
CoderKaine SAS
Share capital
16 000,00 €
RCS Montpellier
841 341 407
SIRET (registered office)
841 341 407 00028
VAT number
FR 37 841 341 407
Registered office
5 Allée du Merlot, 34570 Saussan, France

Legal notice

Published on 4 June 2026

Website publisher

CoderKaine SAS — a simplified joint-stock company (SAS) with share capital of €16,000.00.
Registered office: 5 Allée du Merlot, 34570 Saussan, France.
RCS Montpellier: 841 341 407.
SIRET (registered office): 841 341 407 00028.
VAT number: FR 37 841 341 407.
Publication director: Nguyen Tuan.
Contact: contact@coderkaine.com — Phone: 06 88 58 67 96.

Host

QUIDDEM SAS — 5 Allée du Merlot, 34570 Saussan, France.

Liability

The information published on this site is provided for guidance only and may be changed at any time. CoderKaine takes care to ensure its accuracy but cannot be held liable for any errors, omissions or unavailability of the service.

Privacy policy

Published on 4 June 2026

Data controller

CoderKaine SAS is the data controller for the data collected via this site, in accordance with the General Data Protection Regulation (GDPR) and the French Act of 6 January 1978, as amended, known as the “Loi Informatique et Libertés”.

Data collected and purposes

When you write to us by email, we collect only the data you send us (email address and message content), for the sole purpose of responding to your request. No data is shared or sold to third parties.

Retention period

Contact data is kept for as long as necessary to process your request, then archived or deleted in accordance with our legal obligations.

Your rights

Under the GDPR, you have the right to access, rectify, erase, restrict and object to the processing of your data. You may exercise these rights by writing to contact@coderkaine.com. You may also lodge a complaint with the CNIL.

identite-ts test bench

The “Free software” section offers a test bench that analyses an image of an identity document. This analysis takes place entirely in your browser. The image you provide is neither uploaded, transmitted, nor stored: it is only read in the memory of the tab, and disappears with it. The extracted identity data is shown only to you, and is kept nowhere.

CoderKaine therefore does not become a data controller on this occasion: no data reaches us. The only files exchanged with this server are the analysis engines (optical recognition, code reading, language model), served from this domain and only when you launch the bench. The count of network requests made during the analysis is shown below the result, and you can check this yourself by cutting the network once the engines are loaded.

As a precaution, we nonetheless recommend using the fictional specimen provided rather than a real document.

Contact widget

This site includes Trame, our own contact widget, published by dismoi.dev and hosted in Europe. It is only triggered at your initiative: the only data processed is what you enter yourself (email address and message content), for the sole purpose of replying to you.

Three paths open it: its badge in the bottom right, the “Write to us” button on each card of the portfolio, and the request for access to the Android betas. In the last two cases, the message field is pre-filled by this page — a sentence naming the product concerned — to spare you writing it. This text is written by us, in your browser: you can edit it or delete it entirely before sending, and nothing is transmitted until you have submitted the form. Opening the widget sends no data.

This site carries out no audience measurement and sets no advertising cookies.

Intellectual property

Published on 4 June 2026

Ownership rights

All elements of this site (text, trademarks, logos, visuals, architecture and code) are the exclusive property of CoderKaine SAS or its partners, and are protected by intellectual property law.

Reproduction

Any copying, reproduction or representation, even partial, of any element of the site is prohibited without prior written authorisation. Any breach constitutes an infringement liable to engage the civil and criminal liability of its author.

Installation board

·

The screen reading this is not the one that installs. Each code below encodes the real link of its lane and is drawn right here, in your browser, without a library: point your phone’s camera at it.

iOS · TestFlight

  1. Install TestFlight Apple’s official testing app, free on the App Store.
  2. Open the invitation link The app then installs like any other.

You are already on a touch device: the button above is enough. The code is there for the screen next to you.

Android · Google Play internal testing

  1. Request access Via the contact widget, in the bottom right, with your Google account address. break · account to register
  2. Wait for our reply An email confirms registration on the testers list.
  3. Open the testing link From that same Google account, on the phone.

You are already on a touch device: the button above is enough. The code is there for the screen next to you.

Open the testing link

The break on the Android side is not of our making: Google Play reserves internal testing for accounts registered in advance, and the link returns an error until registration has taken place. TestFlight does not impose this step. That is the whole difference between the two lanes, and the reason why they are not drawn the same way.