client lib code is never the issue. usually scaling or breaking contracts is you can just add it as separate key (similar how you embed eg user objects) ``` p

client lib code is never the issue. usually scaling or breaking contracts is you can just add it as separate key (similar how you embed eg user objects) ``` posts: {…} interactions: { commented_on_posts: [1212,12,1212,121] } ``` btw most people over estimate this problem the _total_ amount of user interactions is usually very small in almost all cases you could download it once at boot for the user.