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1import { email } from "https://esm.town/v/std/email?v=13";
2import { sqlite } from "https://esm.town/v/std/sqlite2?v=1";
3import { AtpAgent, AtpSessionData, AtpSessionEvent } from "npm:@atproto/api";
4import diff from "npm:fast-diff@1.3.0";
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27  // Supports up to 5,000 (100*50) follows, stopping there to try
28  // and avoid rate limits. These APIs have pretty low limits, sound off here
29  // https://github.com/bluesky-social/atproto/discussions/3356
30  outerLoop: for (let i = 0; i < 20; i++) {

18I was an avid user of [ThinkUp](https://www.thinkupapp.com/), a tool that connected to Twitter and sent me a daily email with profile updates from all the people I followed. I found it useful in work and for fun. Maybe one of my friends switched jobs or changed their username to something goofy or political. I want to know! In the distant past Facebook would include profile updates in the newsfeed: why not that for Twitter? ThinkUp did some other cool stuff, like providing full archives of Tweets in a more convenient format than Twitter did themselves.
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20But Twitter [is bad now](https://macwright.com/2025/03/04/twitter-eol) and ThinkUp [shut down in 2016](https://www.thinkupapp.com/) because [the APIs that they were relying on from Twitter, Facebook, and Instagram were all locked down and limited](https://medium.com/@anildash/the-end-of-thinkup-e600bc46cc56). How disappointing.
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22But there's a new social network in town, [Bluesky](https://bsky.app/), and it's ~~impossible~~ somewhat more difficult to corrupt and enshittify than those networks were, and it comes with a pretty good, if sometimes weird API that gives you access to everything you need.
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24Could you build some of ThinkUp on Bluesky? Yes. This is it.