Ruben

Blog posts and open-source work

About

Ruben

  • Software Engineer
  • ruben@tweedegolf.com

Ruben can rightfully be called a full stack developer, with many years of experience. He knows a lot (a lot!) about many different techniques. He watches over the architecture of applications and does not accept half-baked solutions. He always makes his strong opinion heard.

Ruben studied computer science at the RU and previously embarked on the entrepreneurial path together with Marlon. In his spare time, he enjoys playing tabletop games and cycling through the beautiful surroundings of Nijmegen.

When sudo-rs development started, we added several dependencies using Rust’s crates ecosystem to quickly ramp up development. During development we accrued approximately 135 transitive (direct and indirect) dependencies. Once this was identified, we managed to reduce our total dependencies down to three. In this blog, we explain why and how we did this.
In Dutch we have a saying 'meten is weten', which translates to 'to measure is to know'. That sentiment is frequently overlooked in setting up computers and networks.
Thanks to funding from NLNet and ISRG, the sudo-rs team was able to request an audit from Radically Open Security (ROS). In this post, we'll share the findings of the audit and our response to those findings.

Open-source work

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sudo-rs

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.

ntpd-rs

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.

Tags

Languages

Rust 101

Rust 101 is a university course for computer science students, introducing the Rust Programming Language, and is available for anyone who wants to teach Rust.

Have a look at our blog post introducing the course.

Statime

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.

RP1

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.