Audience member asks for the quickest way to create their own Bluesky custom feed (and whether running Kuba's Sinatra-based approach is too resource-intensive). Answer: for non-technical users, visual builders sky feed (hosts ~80% of all feeds) or Grace are easiest. For code-based feeds, use any of the libraries in various languages — Blue Factory in Ruby needs a getPosts method returning post URIs. You need a local store of recent posts, streamed from a relay (~15–20 Mbit/s) or, preferably for feeds, from Jetstream (JSON, an order of magnitude less). Kuba keeps ~1 month (~200 GB) to allow re-running algorithms after tweaking keywords, but most feeds only need a few days of data.