sjayasinghe Karma 157 Created 10 years ago About sj2564 [at] columbia [dot] edu Recent Submissions 1. ▲ Study mode and spaced repetition. Feature requests, Monetization ideas? (app.polymax.ai) 2 points · 4 months ago · 4 comments 2. ▲ Ask HN: Moving a not-for-profit web app off AWS 39 points · 11 months ago · 69 comments All submissions on HN · View profile on HN