Google Summer of Code (GSoC) is a global program that brings new contributors into open source. The Rust Project is thrilled to participate in GSoC 2026, marking another year of collaboration. After publishing project ideas and engaging with applicants on Zulip, we received 96 proposals—a 50% increase from last year. Despite challenges like AI-generated proposals, our mentors carefully evaluated each submission based on contributions, proposal quality, and community impact. On April 30, Google announced 13 accepted projects. Below, we dive into the process, challenges, and selected projects.
1. What is Google Summer of Code and how is the Rust Project involved in 2026?
Google Summer of Code is a remote internship program focused on bringing new contributors into open source. For 2026, the Rust Project is participating as a mentoring organization. We develop project ideas, discuss them with potential applicants, and later select the best proposals to fund. This year, we aimed to strengthen the Rust ecosystem by supporting diverse projects, from GPU offloading to serial port safety. Our involvement helps grow the community and bring fresh perspectives to Rust development.
2. How did the Rust Project prepare for GSoC 2026?
We published a list of project ideas several months before the application deadline. Interested contributors discussed these ideas with mentors on our Zulip chat platform. Even before GSoC officially started, many applicants made non-trivial contributions to Rust repositories, demonstrating their commitment and skill. This preparation allowed us to evaluate candidates not just on proposals but on real-world work.
3. How many proposals were received and what were the selection criteria?
This year we received 96 proposals, a 50% increase from 2025. The selection was challenging due to the large number and some low-quality, AI-generated submissions. Mentors evaluated each proposal based on prior interactions with the applicant, contributions already made, proposal quality, and the project's importance to the Rust community. Mentor bandwidth and availability were also critical factors. Unfortunately, some mentors lost funding for Rust work, forcing us to cancel a few projects.
4. What challenges did the Rust Project face during the selection process?
Two main challenges emerged. First, the surge in proposals included several AI-generated ones, which required extra scrutiny. Second, many mentors faced funding cuts, reducing our available mentor pool. We had to ensure no mentor was overloaded, leading to tough choices between excellent proposals. Also, for each project topic, we could only select one proposal, even if multiple were strong. These constraints made the final decision difficult but necessary to maintain quality mentorship.
5. When were the accepted projects announced and how many were selected?
Google announced the accepted projects on April 30. We are delighted that 13 Rust Project proposals were accepted—a significant number that reflects our community's dedication. The list of accepted projects includes a range of topics, from debugging tools to WebAssembly support. Each project will be mentored by experienced Rust contributors.
6. What are the accepted projects for GSoC 2026?
Here are the accepted proposals (in alphabetical order) with authors and mentors:
- A Frontend for Safe GPU Offloading in Rust – Marcelo Domínguez (mentor: Manuel Drehwald)
- Adding WebAssembly Linking Support to Wild – Kei Akiyama (mentor: David Lattimore)
- Bringing autodiff and offload into Rust CI – Shota Sugano (mentor: Manuel Drehwald)
- Debugger for Miri – Mohamed Ali Mohamed (mentor: Oli Scherer)
- Implementing impl and mut restrictions – Ryosuke Yamano (mentors: Jacob Pratt and Urgau)
- Improving Ergonomics and Safety of serialport-rs – Tanmay (mentor: Christian Meusel)
These six represent a sample of the full 13; the remaining projects cover additional areas of the Rust ecosystem.
7. How were mentors assigned and what factors influenced the final selection?
Mentors were assigned based on their expertise and availability. The final selection prioritized proposals that aligned with Rust's strategic goals, had strong applicant contributions, and could be realistically supported. We also balanced across different project areas to avoid concentrating too many projects on one mentor. The process was rigorous, but the resulting roster of 13 projects reflects a wide distribution of talent and effort.