Hacker News new | past | comments | ask | show | jobs | submit login Show HN: Lagukan, a highly personalized music service ( lagukan.com ) 95 points by jacobobryant 87 days ago | hide | past | web | favorite | 76 comments jacobobryant 87 days ago If anyone's interested in some technical details: - The algorithm is kind of like collaborative filtering, but it filters over previous listening sessions of the same user rather than different users. - Backend is written with Clojure on Datomic cloud ions. Having Datalog queries for one thing was a huge help. Not sure if the performance characteristics of Datomic will make it work for this use case in the long term, but I'm planning to stick with it until I have to move. Sorry the installation procedure is a little janky. I was going to polish it but decided it would be a better use of time to move immediately into ...