Exec

Apps that do one useful thing, with no account and no cloud.

Subdomain in preparation.

Les trois divisions
Systm

The small, sharp tools that watch over your machine.

Subdomain in preparation.

Les trois divisions
Incubator

Explorations, prototypes and research that aren't a product yet.

Subdomain in preparation.

Les trois divisions

Under construction

Vitamin D

Useful software. Ideas that deserve to exist.

Too small. Too local. Too experimental.
And yet incredibly useful.

The idea is simple: lower the barriers between a good idea and its users.

More Vitamin D soon.

The rest of this site is in French — including the pages about the project, what it takes on, and how to get in touch. Aller au site en français.

The project

Who it is for

Communities with a real need and little funding: the riders of a bus line, the people of a village, the developers who share their tools. Vitamin D takes on the projects that serve beyond their maker.

Pooling means

A server, tools, design and visibility, shared so that useful software can exist without having to become a startup. What is built for one community can serve another.

Why an association

A collective structure that hosts projects, says plainly who owns them, and lets each maker take theirs along if it takes off.

The association, once it exists

Vitamin D will become a non-profit association. The principle has been settled since 17 September 2026; there are no bylaws, no date, and I am not announcing one. Meanwhile, the projects move forward.

What Vitamin D does, what it does not

What Vitamin D does

Tools for an identified community with a precise need.
Open software wherever possible, maintained over time.
Small, finished projects rather than one more platform.

What Vitamin D does not

Work to order, for a need that concerns only the person asking.
Promises of deadlines or availability: Vitamin D runs on donated time.
Services that lock their users in or resell their data.