YHacker Newsscreenshots

dingdongdoorbell.com on Hacker News

1 story on the front page, newest first. Scroll down to watch the site change over time.

Screenshot of dingdongdoorbell.com: Show HN: I built an app to use a QR code as my doorbell

Show HN: I built an app to use a QR code as my doorbell (dingdongdoorbell.com)

101 points by dirkc 2 years ago | 186 comments