2010 – 2025 22 Milestones Peak Score: ★ 350 pts

Krzysztof Kowalczyk (SumatraPDF)

15 years of solo open-source software maintenance: keeping Windows software lightning fast, bloat-free, and honest.

CORE FOUNDER LESSON

“Simplicity is the hardest discipline. Resist feature bloat, minimize dependencies, and your software will outlast whole tech generations.”

Chronological Milestones & Turning Points

22 defining submissions documented on Hacker News