wtf is yumechi-no-kuni-mirror?

This repository is a fork of Misskey, an open-source social media platform. Misskey itself is a federated system, meaning users on different servers can talk to each other similar to how email works across providers. The main draw is that it is free, community-driven, and not controlled by a single company. The README links to resources for finding an existing server to join or setting up your own instance. However, this particular repo is not the main Misskey project. The description labels it a "cherry-picked fork for upstream PR only," which means it is a copy created to handle specific code contributions back to the original project. If you are looking for the actual source code to run or build on, you would need to look at the primary Misskey repository instead. People who might interact with this specific version are typically developers contributing to the broader Misskey ecosystem. For example, a contributor might use a setup like this to isolate a new feature, test it, and submit it as a pull request to the main project. Everyday users looking to join a social network would not need to use this repository at all. The README itself mostly contains standard Misskey branding and a list of corporate sponsors who provide free tools to the main project. These sponsors offer services for catching software bugs, testing user interfaces, translating the platform into multiple languages, and packaging the application for easy deployment. While informative about the main project's backing, the documentation does not go into detail about what specific changes are housed in this particular fork.