ossner Karma 124 Created 3 years ago Recent Submissions 1. ▲ Ask HN: What is your knowledge domain and how do you stay up-to-date? 3 points · 15 days ago · 4 comments 2. ▲ I 3D printed this movie camera from scratch [video] (youtube.com) 3 points · 3 months ago · 0 comments All submissions on HN · View profile on HN