wtf is bibliotheca?

Bibliotheca is a Chinese language index of scattered tutorials from a community that uses Claude and similar chatbots as AI companions. The maintainer collects links to posts that other users have written on X (formerly Twitter), groups them by topic, and adds a short note for each one. The repo itself holds no tutorial content of its own. All linked material belongs to the original authors, and a note at the top says anyone can open an issue to have their link removed. The largest section is prompt engineering. It splits into three parts: basic setup of the model's profile, instructions, and writing style, targeted fixes for common complaints like the model sounding mechanical, overlong thinking chains, repetitive phrasing, or out of character behavior, and ready made interactive scenarios such as worldbuilding templates and small text games to play with the model. A memory systems section gathers guides for giving Claude persistent memory across sessions. These range from a low cost VPS tutorial and an iOS shortcut that feeds screen time and battery data into the model, to a vector search memory library that uses the Ebbinghaus forgetting curve and emotion coordinates, plus an open source MIT licensed project called kiwi-mem that ships with Docker. A larger group of links covers connecting the model to the outside world. It includes a getting started MCP guide, instructions for letting Claude drive a browser from a VPS or a Mac, a Twitter bridge that does not need the X API, tutorials for sending push notifications and tracking app usage on a phone, and BLE and GATT notes for controlling small wireless toys. The rest of the index is shorter. It has a few UI skinning guides for the Claude web app, two general beginner walkthroughs, an API caching writeup aimed at cutting subscription costs, and a miscellaneous section with VPS node setup and a userscript that opens multiple Opus tabs. The repository ends with a contribution section: submit an issue or PR, or leave a link in the comments if you do not know Git.