He has some (funny) info on Pinboard About page (https://pinboard.in/about https://pinboard.in/about) regarding 'the technology', perhaps he was mentioning that

He has some (funny) info on Pinboard About page (https://pinboard.in/about https://pinboard.in/about) regarding 'the technology', perhaps he was mentioning that... > Pinboard is written in PHP and Perl. The site uses MySQL for data storage, Sphinx for search, Beanstalk as a message queue, and a combination of storage appliances and Amazon S3 to store backups. There is absolutely nothing interesting about the Pinboard architecture or implementation; I consider that a feature!