@Gargron so I translated this https://kirakiratter.com/@lae/154485 https://lae.is/j/2017/04/19/a-practical-behind-the-scenes-running-mastodon-at-scale/

@lae @Gargron The "Contributing to Mastodon" section means:
We tried to improve mastodon server by infrastructure aspect, but sometime we can achieve better result by improving code instead of adding more servers. In pixiv multiple engineer create pull request for improvement.