2026 year in review is out now

Change the world through innovation.

We're a small group of developers who love building open tools for the people solving hard public problems — and we give the work away, permanently, to anyone who can use it.

Apache-2.0 · no company, no investors · community-maintained

lab notebook / this month
  • Released Tideline v3 — open flood-mapping toolkitproductsAug 2026
  • Write-up: low-cost cold-chain monitoring in rural clinicspublicationsJul 2026
  • 4 new maintainers joined the projectteamJun 2026
  • Open dataset: 12 years of municipal water qualitypublicationsMay 2026

How we work

Ideas, built into something usable.

Too many good ideas die in a repo nobody ships. We carry them all the way to tools people actually use.

01

Products

Open tools built with the people who will use them — clinics, co-ops, city offices, small NGOs. Free forever, no tier above them.

  • Six tools in active use across 34 countries
  • Apache-2.0, self-hostable, no lock-in
  • Built with the people who use them, not for them

02

Publications

Everything we learn is written down and released — methods, failures and data included, so the next contributor starts further along.

  • 40+ posts and write-ups since 2019
  • Datasets and code released alongside
  • Plain-language notes, not just papers

03

Team

A small group of developers who ship in the open, on our own time, not for customers.

  • 23 contributors across 9 countries
  • Open contributor onboarding, no gatekeeping
  • Volunteer, all the way through

Fund the next experiment.

Every donation and volunteer hour goes into work that stays public. Fund a project, contribute code, or bring us a problem worth solving.