For anyone preparing for GSoC 2027 or looking for Hacktoberfest contributions: 1. Cal.com (Next.js / TypeScript scheduling) 2. Infisical (Secret management & Go) 3. Oppia (Educational math platform for Python/Angular beginners) 4. Appsmith (Low-code developer tooling in Java/JS). All 4 have friendly Discord communities and dedicated 'good first issue' labels.

When your PR has 14 messy 'checkpoint' commits, don't close the PR and open a new one! Use `git rebase -i HEAD~14`, squash your commits into 1 clean logical commit with `s`, and write a meaningful commit message. Maintainers love clean git histories.

Started as a solo project to view college bus routes. We open-sourced the repository, wrote contributing guidelines, and in 6 months, 24 students across 4 batches contributed features like mess notifications, timetable sync, and dark mode. Building in public is rewarding!

Quick summary: If you want anyone to use or fork your code anywhere (even commercial companies without open-sourcing changes), pick MIT. If you want patent protection, choose Apache 2.0. If you want any derivative work to remain open-source forever, choose GPLv3.