dvduval Karma 237 Created 7 years ago About When I type "N" in Chrome, this site if first. I make software for dance schools. dancestudiomanager.com Recent Submissions 1. ▲ Ask HN: Can I get enough UV through a window screen to produce Vitamin D? 3 points · 4 years ago · 1 comment 2. ▲ Google Store Ads in Gmail 1 point · 5 years ago · 0 comments 3. ▲ YouTube Traffic Redirection 1 point · 5 years ago · 0 comments All submissions on HN · View profile on HN