our projects
We build software at the intersections of science, sustainability and everyday work - from highly specialized scientific tools to CO2 calculation services and everyday productivity apps.
API / SaaS
Governance
Self-hosted
GovOPlaN
Governance Operations Platform for all your adinistrative needs.
Python · React · Multi-tenant · AGPL-3.0 · Self-hostable
GovOPlaN aims to provide a modular platform to allow government structures to perform
and automate tasks that usually bind a lot of workforce, while giving the tools
to enforce policies and make all steps reviewable and auditable. First implemented
was a mail distribution channel, allowing individual attachment allocation by wildcard.
Software
Science
ADELEv2017
Age determination software for luminescence and ESR data.
Java™ · Desktop Application · Windows · Licensing on request
ADELEv2017 supports age determination based on luminescence and electron spin
resonance measurements. It offers live calculations, flexible import/export
workflows and a user interface designed for everyday lab work.
Webservice
Open Source
PDF
pdf-tools
Split, merge and rearrange PDF pages in the browser.
TypeScript · Vite · AGPL-3.0 · Self-hostable
pdf-tools is an open-source toolkit based on pdf-lib and pdfjs for working with PDF pages:
split, merge, reorder and extract pages directly in your browser. Built with modern web
technologies and released under AGPL-3.0, it’s designed to be inspectable,
extendable, self-hostable, while keeping your data safe.
Webservice
Open Source
XSLT
xslt-tools
Test your XSL transformations in the browser.
TypeScript · Vite · AGPL-3.0 · Self-hostable
xslt-tools lets you test your XSL transformations live in browser:
input your XML, apply your transformations, and see the result immediately.
Powered by the SAXON engine, it's purely in-browser, keeping your data where
it belongs - on your computer. It's released under AGPL-3.0 and easily self-hostable.
API / SaaS
CO2 accounting
calco2la.to
CO2 emission calculations you can automate.
REST API · JSON · Multi-tenant · Pilot phase
calco2la.to is a programmable CO2 calculation service. It provides a stable,
documented API for computing emissions - for example from travel - with a focus on
transparency, replayable calculations and integration into existing systems.
API / SaaS
Travel decision
Emissions
mEUbility
Make smarter travel decisions.
Python · React · Multi-tenant · AGPL-3.0 · GTFS · OSM
mEUbility aims to provide the toolbox for smarter, weighed travel choices within
EU context (as a start). It will allow travel planning, route comparison, emission
calculation, and timetable insights, giving the smart traveller everything for an
informed decision.
SaaS
Provenance
PRVNNCR
Giving insights into where an information came from.
Python · AGPL-3.0 · Browser Extension ·SaaS
PRVNNCR attempts to answer the question where information originally came from. With smart
search tools, it tries to probabilistically determine the scientific paper that got turned
into a press release, which in turn became a news article that then was quoted on social media.
Android app
CalDAV
CalDAVTasks
Hierarchical tasks, synced with your CalDAV server.
Android · Kotlin · CalDAV · In development
CalDAVTasks brings flexible, hierarchical task management to Android -
with support for CalDAV servers such as Nextcloud. It focuses on everyday usability:
drag-and-drop reordering, full standard compatibility and offline-capable synchronization.
Web app
Android app
Messaging
comiaunicaty
Structured group messaging.
Python · Messaging · Data sovereighnity · In development
comiaunicaty provides structured group messaging for communities, allowing to focus on
what's really important: the RSVP, the changed class schedule, the orange slices to bring to
your child's soccer game. Avoid the noise and get the information you need - over multiple
groups and servers.