Rust Foundation Trusted Training Spotlight: Mainmatter
Last month, we announced the launch of the Rust Foundation Trusted Training (RFTT) program alongside our founding cohort of accredited providers. Today, we’re kicking off a series of spotlights taking a closer look at each provider, starting with Mainmatter: one of the earliest organization to ever earn our RFTT designation!

About Mainmatter
Mainmatter is a team of Rust experts, led by Luca Palmieri, who guide organizations through adopting and building on Rust with confidence. Deep in the Rust ecosystem, Mainmatter organizes EuroRust and created the 100 Exercises to Learn Rust course.
Why RFTT?
We asked Mainmatter what drew them to pursue RFTT accreditation. Here’s what they told us:
“Rust training varies wildly in quality, and buyers have had no easy way to tell the difference. RFTT gives them a clear signal — and gives us an external standard to hold our own workshops to. That’s worth being part of.
I’m also happy we get to contribute to shaping the future of the Rust training ecosystem via Luca’s work on the RFTT steering committee.”
– Marco Otte-Witte, Managing Director, Mainmatter
What They Offer
Mainmatter offers a wide range of Rust training, from introductory workshops to advanced topics like testing, macros, and C-to-Rust migrations (check out their brand publication: The C to Rust Migration Book!) All workshops are hands-on and exercise-driven, with automated solution-checking that frees trainers to spend most of their time giving attendees one-on-one feedback and guidance.
Find Mainmatter In Our Directory
Mainmatter is now listed in the RFTT provider directory at rustfoundation.org/rftt. Visit their website at mainmatter.com/rust to learn more about their Rust training offerings.
We’re proud to welcome Mainmatter to the program. Mainmatter’s broad catalog of trainings, hands-on approach, and open source learning materials are an important building block of the Rust learning ecosystem.
Are you a Rust training provider interested in applying for RFTT accreditation? The program is open to Rust Foundation member organizations with at least two years in business and one year offering Rust training. Independent trainers and micro-businesses are also encouraged to reach out. Learn more and submit your interest at rustfoundation.org/rftt or contact us at training@rustfoundation.org.
About the Rust Foundation Trusted Training Program
The Rust Foundation Trusted Training (RFTT) program is a formal accreditation for organizations providing Rust programming language training. Accredited providers have been independently assessed against the Rust Foundation’s documented standard covering curriculum quality, instructor expertise, learner experience, transparency, and ethical business practices. Learn more at rustfoundation.org/rftt.