In Part 1 you learned how to prepare for Google Summer of Code and choose the right organization. In this part we turn to another essential aspect of success: how you contribute to a project and communicate with its community. Technical skills matter, but they are only part of the picture. Understanding project workflows, collaborating effectively with others, and communicating clearly and professionally often make the real difference between contributions that get noticed and those that are overlooked.
Why Contribution and Communication Matter#
Open source is not just about writing code -- it is about working with people, processes, and shared standards. Your contributions are visible to the entire community, from maintainers to fellow contributors, and your communication often shapes how others perceive your professionalism and reliability. Clear, thoughtful interactions demonstrate that you understand project workflows, respect others' time, and can collaborate effectively. In open source, success is shaped not just by what you build, but by how you work with others. Navigating project processes, responding thoughtfully to feedback, and communicating effectively often determine whether your contributions stand out or fade into the background.
Git and GitHub Flow#
A strong understanding of Git and GitHub Flow is essential for anyone serious about contributing to open source. GitHub Flow defines how changes move from idea to production through branching, pull requests, reviews, and merging. Knowing when to merge, rebase, or squash commits is especially important in popular repositories, where clean history and traceability matter. Many long-term or larger changes are developed on feature branches, which allow contributors to work safely without disrupting the main branch while keeping work organized and reviewable.
Equally important is how you present yourself on GitHub. Your profile is usually public and visible to maintainers, mentors, and the wider community, so it becomes part of your first impression. If your profile is private, that also sends a signal and may raise questions about your engagement or transparency. Avoid default GitHub avatars, which are easy to spot and can make your profile look incomplete. Set up two-factor authentication and use commit signing. Keep your profile README up to date and professional: ensure it reflects your skills, projects, and interests clearly without being cluttered or overwhelming. A polished, professional GitHub profile signals that you take open source seriously and care about quality and accountability in your contributions.
Fork Management and Conflict Resolution#
Beyond understanding GitHub Flow, contributors need to manage their forks properly. Keeping your fork in sync with the upstream repository and resolving merge conflicts is an everyday skill. It is crucial to keep your pull request up to date with the latest changes in the main branch, especially in actively developing projects. One common mistake among new contributors is misunderstanding the difference between a fork branch changes and a pull request. You have full control over your fork and the branch used for your PR. You do not need to close a PR to just update your code. Pushing new commits to the same branch automatically updates the existing PR. Closing and reopening PRs for small changes creates unnecessary work for maintainers and signals inexperience. A strong contributor keeps a single PR alive until it is ready to merge.
Project Guidelines#
Following a project's contributing guidelines is critical. Files such as README, CONTRIBUTING, and CODE_OF_CONDUCT are not optional reading, they define how the project works, how code should be structured and tested, and how contributions are expected to flow. Skipping them, or ignoring existing patterns in the code base, signals a lack of understanding of the project's workflow and values.
Before writing new code, take time to read the existing code and observe established conventions. Follow the project's structure, naming patterns, testing style, and architectural decisions. Consistency matters more than personal preference, and aligning with existing patterns makes your changes easier to review and maintain.
I recommend always opening pull requests as drafts. Draft PRs allow you to get early feedback via automated checks, and improve your code before requesting a full review. Following these guidelines not only ensures your contributions are accepted more smoothly but also gives newer developers more exposure to real-world software development practices, from coding standards and testing requirements to review processes and collaboration norms. This hands-on experience is invaluable for building confidence and understanding how professional software projects operate.
Reviews, Feedback, and Technical Best Practices#
Once your PR looks solid, mark it as ready for review. If maintainers request changes that require significant updates, moving the PR back to draft signals that the work is still in progress. After addressing feedback, re-request reviews so maintainers know your PR is ready for another round.
When you receive feedback, apply it consistently across the entire PR, not just to the specific lines mentioned in review comments. The code review stage is where the real learning happens -- treat it as an opportunity to improve your overall approach, not just to fix isolated issues. Responding directly to comments, even with a short acknowledgment, also shows engagement, professionalism, and respect for the reviewer's time.
Before requesting a maintainer review, make full use of available automated tools to improve your code. AI code review assistants such as CodeRabbit, along with linters, and static analysis tools, can help identify issues in logic, style, security, and documentation. Running these checks and requesting automated reviews early allows you to fix common problems in advance and present a more polished PR.
Well-prepared PRs save time, reduce back-and-forth, and make collaboration more efficient for everyone. Using both human and automated feedback responsibly shows that you value quality, respect maintainer time, and take your contributions seriously.
Use AI Tools Responsibly#
AI tools can be helpful for learning, brainstorming, and improving code quality, but they should not replace genuine understanding or thoughtful contribution. Submitting low-effort, AI-generated pull requests or issues (often called "AI slop") creates noise, wastes maintainer time, and harms collaboration and most importantly your reputation. What matters is the quality, clarity, and usefulness of your contributions.
Use AI to support your work, not to automate it. Make sure you understand the code you submit, can explain your decisions, and respond meaningfully to feedback. Well-researched, well-tested, and clearly written contributions will always be more valuable than a high volume of generic or sometimes useless changes. -- V Sreenivas, GSoC 2025 mentor at Jenkins
Become Part of the Community#
Google Summer of Code is not only about writing code. One of its key goals is to help contributors become active members of open source communities. Many organizations value community engagement just as much as technical skills.
Being part of the community means participating in discussions, communicating respectfully, and understanding how the project works. Contributors who engage with the community produce better, more aligned contributions. In GSoC, strong communication and involvement can be just as important as writing high-quality code.
Effective Communication and Audience Awareness#
How you communicate is just as visible and impactful as the work you produce. If your availability changes or you need more time to address feedback, communicate early. Silence creates uncertainty, while timely updates build trust and keep collaboration healthy. Many contributors struggle with choosing between public and private communication. Questions that could benefit the whole community are sometimes sent as direct messages, while personal or minor updates are posted publicly -- this often frustrates others.
Use public channels for discussions others can learn from, and private messages for sensitive or personal topics. Think before sending, and consider the impact of your message. Avoid duplicating information across platforms. Repeating updates rarely adds value and often creates noise. Polite reminders about stalled reviews are acceptable, but pinging the same people across several channels creates unnecessary pressure.
Many open source projects are part of larger organizations with multiple communication spaces. Before posting, consider the audience size and relevance. Does your message really need to go to a Slack channel with 500 members -- or even 50,000? Smaller, focused channels often lead to better, faster, and more meaningful discussions. Choosing the right place to communicate is just as important as choosing the right words.
When asking for help from mentors or maintainers, always provide full context. Include clickable links to the relevant issues or pull requests instead of just mentioning numbers. Clearly explain what you are trying to achieve, what you have already tried, and where you are stuck. If applicable, share your reasoning and any trade-offs you considered in your proposed solution. This shows that you have made a genuine effort to solve the problem yourself and allows others to help you more effectively. Do not delete messages on Slack, GitHub, or discussion forums. Deleting messages breaks context and often frustrates others following the conversation. If you make a mistake, acknowledge it and clarify rather than erase the message. Transparency builds trust.
Avoid becoming the contributor who brings a problem without first attempting to tackle it. Thoughtful preparation demonstrates initiative, respect for others' time, and a stronger understanding of the project.
Another important point is to keep a consistent identity across platforms where you interact with mentors and maintainers. Use the same name and avatar on GitHub, Slack, or any discussion forum. This consistency helps people recognize you quickly, builds familiarity, and avoids confusion when tracking your contributions and interactions.
Respect Maintainer Bandwidth#
Contributors who receive personal responses from maintainers or project leaders are fortunate. However, it is important not to overuse this attention. Mentor and maintainer bandwidth is limited, and the ratio of contributors to mentors is often far from balanced. Understanding the maintainers' perspective and keeping your questions thoughtful and focused shows respect for their time. Whenever possible, leverage help from the wider community first, using forums, discussion channels, or documentation before seeking direct guidance.
Stand Out with Thoughtful Communication#
Fixing a handful of good first issues can open the door to Google Summer of Code -- but it will not let you walk through it. Every issue you work on and every PR you submit becomes part of your public GitHub portfolio. That portfolio can work for you or against you, depending on the quality, consistency, and follow-through of your contributions. Strong communication isn't about being loud -- it's about being thoughtful, respectful, and intentional. As the official GSoC guidelines emphasize:
Don't even think about selecting a GSoC contributor with whom you've had no contact. You should establish an active back-and-forth prior to making a decision. If you or your GSoC contributor have failed to make this happen, do not proceed.
This highlights how important it is to maintain consistent, professional communication throughout the contribution process. Building a reliable pattern of interaction with mentors and maintainers (responding to feedback, asking thoughtful questions, and sharing progress) can make the difference between being selected for GSoC and being overlooked. Communicate early and often -- timely status updates often matter more than perfectly polished code.
Bringing It All Together#
Contributing to open source is about more than just code. It's about how you collaborate, follow processes, and communicate effectively. Mastering Git workflows, managing pull requests, and applying feedback consistently shows technical competence, while thoughtful, timely, and respectful communication demonstrates professionalism and respect for the community. In both contribution and communication, quality matters far more than quantity -- a few well-crafted pull requests and clear, focused messages will leave a stronger impression than numerous rushed or noisy updates.
Google Summer of Code is an opportunity not only to write good code but to become a reliable, trusted member of the open source ecosystem -- someone maintainers want to work with and mentors are proud to guide. Strive for quality in both what you contribute and how you communicate, and you'll make a lasting impact.
References#
- Community basics
- Communication best practices
- GitHub Flow overview
- Giving and receiving criticism
- How to begin participating in conversations
- LinkedIn original Part 2
- Open source culture
- Pro Git Book
- Resolving merge conflicts
- Securing your GitHub account with two-factor authentication
- Selecting a GSoC contributor
- Signing your GitHub commits
- Syncing a fork with upstream
- The soft skills
- The technical skills
- What does community mean?
A big thank you to the OWASP Foundation and the Python Software Foundation for participating and giving us the opportunity to tackle real-world problems through this incredible program organized by Google. I had the privilege to mentor multiple projects for OWASP and PSF guiding 10+ students alongside great mentors like Kateryna Golovanova, Panpakorn Siripanich, Sam Stepanyan, Serhii Murza, and Tamara Lazerka.
Disclaimer: The following insights and suggestions are based on my mentoring experience within OWASP and PSF umbrella projects (OWASP 2024, OWASP 2025, PSF 2025). They do not guarantee acceptance into GSoC but can significantly improve your chances if applied properly.
Originally published on LinkedIn on 21 Jan 2026 as Google Summer of Code: Your Complete Guide to Success, Part 2.
