I’m Aditya Umesh Singh also known as salmoneatenbybear. This summer I worked on an exciting project under GSoC 2025 for CircuitVerse, the open-source digital logic simulator used by students, hobbyists, and professionals worldwide.
My GSoC 2025 project with CircuitVerse was initially named: Project 1: Circuit Management & Performance Enhancement
By the end of my work, I realized that a more suited title should be:
“Circuit Visibility Boosting & Platform Performance Enhancement”
Because as you’ll see in the details below, my contributions were more about making circuits more discoverable, engaging, and accessible to the community.
The Weekly Contest feature started with #5799. The problem was simple: we didn’t have a safe, end-to-end way to host contests. I implemented submissions, fair voting, automatic winner selection, admin tools, notifications, and deadline handling, released behind a feature flag so we could roll it out gradually. The Contests feature was on the master branch but was not ready for production, so I cleaned up the architecture in #5943 by splitting responsibilities into focused controllers, adopting reusable components, enforcing RESTful routes, and tightening validations and database constraints.
That groundwork made it easy to address bugs such as withdrawals after a contest ended. I hid the button and blocked the action server-side. I also fixed a brittle votes association that threw errors when users were deleted. To make the UI global-ready and calmer, I replaced hard-coded English with i18n (including pluralization and RTL safety) and switched the ticking countdown to a clear, server-rendered label. I then simplified the contest test suite by asserting the actual text users see rather than translation keys. Finally, I added a guarded, admin-only flow to delete completed contests via a confirmation modal, ensuring live contests remain protected.
To make results visible in a better way, #5975 introduced a public Contest Leaderboard with ranked submissions, author links, votes, submission times, a winner badge, and a clear “back to contest” path. It’s a straightforward view that rewards participation and closes the loop for entrants.
We needed circuit discovery to have its own home, so #5977 launched the feature-flagged Explore page: a single, responsive place for Circuit of the Week, Editor Picks, Recent, and Tags, with cursor-based pagination for the recent circuits page. I followed up by making the tests speak in plain English so they better reflect real UI. Top Tags then got first-class treatment where I added dedicated tag pages with cursor-based pagination, graceful recovery from malformed cursors, and caching of popular tags to reduce database load. To keep Explore fast, #5996 preloaded preview attachments across sections to remove N+1 queries, and I improved the quality of the tag surface by excluding symbol-only/numeric tags and introducing deterministic tiebreaker sorting for a stable order.
Across the app, I focused on eliminating N+1 queries in pages that load a lot of media. I preloaded profile pictures on user listings; did the same for user profiles by eager loading both circuit previews and avatars; applied eager loading to the homepage’s featured and project lists; and accelerated group pages by preloading members, users, and their avatars. To verify these improvements aren’t just theoretical, I added the Bullet gem in development and test so any missed eager loads show up immediately during local runs and CI.
I also began a Group-specific visibility feature (WIP). The goal is to allow sharing a project only with members of a selected group. The work introduces a “Group” access type, adds the group_id association, updates policies and form behavior, and wires up the basic controller flow. It still needs much more work, tighter validation, friendlier error handling, and comprehensive tests before it’s complete.
Finally, a couple of tidy-ups that helped the codebase as a whole. I removed a duplicate attribute from the API serializer. This was outside my GSoC scope but worth fixing for consistency. I also resolved a refactor fallout from another GSoC project by removing obsolete two-argument calls, inlining the logic, and cleaning up tests. It was a small example of cross-project collaboration: if you see a crack forming, seal it. In GSoC, the scope should guide your work, but it shouldn’t limit it. Contributing wherever it genuinely helps the project is just as important - scope defines direction, not a ceiling on your impact.
| PR | What | Status |
|---|---|---|
| #5799 | Weekly Contest core feature (end-to-end) | Merged |
| #5943 | Contests refactor for production readiness | Merged |
| #5977 | Explore page (feature-flagged) | Merged |
| #5975 | Contest Leaderboard | Merged |
| #5996 | Preload circuit previews (N+1 fix) | Merged |
See the full list of my GSoC 2025 PRs: here
As of Aug 24, 2025, in production and live to about 25% of users.
As of Aug 24, 2025, live to all CircuitVerse users (over 320,000 worldwide).
My journey with CircuitVerse doesn’t end with GSoC. There are several important improvements I’d love to continue working on, especially to make Weekly Contests even better.
I’ve already opened up a few issues and discussions that I believe are crucial next steps:
| Resource | Link |
|---|---|
| GitHub Projects Page | View Board |
| Async Status Update Sheet | Google Sheet |
| Meeting Notes (Weekly Mentor Syncs) | Google Doc |
| Week | Blog Link |
|---|---|
| Community Bonding | Read |
| Week 1 | Read |
| Week 2 | Read |
| Week 3 | Read |
| Week 4 | Read |
| Week 5 | Read |
| Week 6 | Read |
| Week 7 | Read |
| Week 8 | Read |
| Week 9 | Read |
| Week 10 | Read |
| Week 11 | Read |
| Week 12 | This blog itself |
This summer with CircuitVerse has been nothing short of transformative.
The most important lessons I learned were how to balance product value, performance, and long-term maintainability.
The journey doesn’t stop here, there’s still plenty to refine and build, and I’m excited to continue contributing to CircuitVerse beyond GSoC.
To everyone who reviewed PRs, tested features, or shared feedback, thank you.
Open source thrives on collaboration, and I’m grateful to have been part of such a supportive community.
Here’s to stronger circuit visibility, faster performance, and a brighter future for CircuitVerse.