Open Source

A crate for storing data in flash memory with minimal need for erasing pages.

Used in many embedded Rust projects inside and outside of Tweede golf. It often replaces a traditional file system with its key-value map and fifo queue.

Full async Rust support for the modem of the nRF91xx series of LTE-enabled microcontrollers from Nordic.

Supports almost all modem features: AT-commands, GPS, Tcp, Udp, SMS, (D)TLS

Abacus is the new application (currently in development) to support the paper-based vote counting process for all Dutch election results and the distribution of seats.

It is being built open-source by the Dutch Electoral Council (Dutch: Kiesraad). Our engineers have joined the Electoral Council developer team for both frontend and backend development.

Openleadr-rs is an opinionated, open-source Rust implementation of the OpenADR 3.0 protocol that's ready for real-world pilots. OpenADR is a protocol for automatic demand-response in electricity grids, used, for example, for dynamic pricing or load shedding.

openleadr-rs was initiated by us as openadr-rs, but is now part of the OpenLEADR project, governed by the Linux Energy Foundation.

zlib-rs is a memory-safe Rust implementation of zlib, the widely-used compression library, used primarily on the web to provide gzip compression to the text/html/js/css we send around.

The initial development of zlib-rs was started and partly funded by Prossimo. It's now governed by the Trifecta Tech Foundation as part of their Data Compression initiative.

Sudo-rs is a memory safe implementation of sudo and su, a project by Prossimo jointly implemented by Ferrous Systems and Tweede golf.

Read more in this blog post.

MailCrab is an email test server for development, written entirely in Rust.

MailCrab was inspired by MailHog and MailCatcher. It uses Axum for the backend and Yew for the frontend.

ntpd-rs is an open-source implementation of the Network Time Protocol completely written in Rust, with a focus on exposing a minimal attack surface. This video explains how ntpd-rs brings NTP into the modern era.

The project was initially funded by ISRG's Prossimo, as part of their mission to achieve memory safety for the Internet's most critical infrastructure. The NTP initiative page on Prossimo's website tells the story.

ntpd-rs is part of Project Pendulum. In July of 2023 the Sovereign Tech Fund invested in Pendulum, securing development and maintenance in 2023, and maintenance and adoption work in 2024.

teach-rs, formerly Rust 101, is a collection of modular teaching materials to build a university course for computer science students, introducing the Rust Programming Language. It is open source and thus available to anyone who wants to teach Rust.

It is governed by the Trifecta Tech Foundation.

Read one of our teach-rs blogs for more info.

Folkert works on Roc and is one of its main contributors. Roc's goal is to be a fast, friendly, functional language.

Statime is an initiative of Tweede golf, an open-source implementation of the Precision Time Protocol (PTP) in Rust.

High-precision timing is part of crucial networking infrastructure. With Statime we provide a memory-safe alternative for existing implementations.

The first milestones of the project were kindly co-funded by the NLnet Foundation.

Statime is part of Project Pendulum. In July of 2023 the Sovereign Tech Fund invested in Pendulum, securing development and maintenance in 2023, and maintenance and adoption work in 2024.

Rust library for interfacing with IRMA servers.

IRMA is a set of free and open-source software projects implementing the Idemix attribute-based credential scheme, created by the Privacy by Design Foundation.

It allows users to safely and securely authenticate themselves as privacy-preserving as the situation permits.

Developed by Ruben, RP1 is a procedural macro that generates a set of useful basic CRUD (Create-Read-Update-Delete) endpoints in a REST-like API with JSON output.

Check out the blog post RP1: an experimental Diesel-based CRUD for Rocket, for more.

TGuard is a web-based sending and decrypting service for irmaseal-encrypted messages that is currently in development at Tweede Golf.

TGuard utilizes IRMA to allow a user to encrypt messages client-side. These messages can be decrypted client-side once the receiver proves to be the owner of attributes the message was encrypted for, like an e-mail address, name, or an identifying number.

For ID Contact we researched the possibilities of digital identification: how can residents organize their personal government affairs in a simpler and more reliable way? By telephone, via chat or via a video call.

The ID Contact innovation pilot is a collaboration between the municipalities of Arnhem, Nijmegen and the Drechtsteden and knowledge partners such as the Tax Authorities and iHub (Radboud University).

Within the ID Contact team we developed the software that makes secure digital identification possible.

Driver crate for the Texas Instruments ADS1292 24-bit 2-channel low-power analog front end for ECG applications.

Developed by Daniel, storage-abstraction provides an abstraction layer for interacting with a storage; this storage can be a local file system or a cloud storage. Currently local disk storage, Backblaze B2, Google Cloud and Amazon S3 and compliant cloud services are supported.

Also see the related blog post, Cloud storage simplification and abstraction for Node.js or give the npm package a try.