wakame nod

<blockquote>
Matrix allows users on different servers to communicate with each other, similar to how people on different email servers to email each other.
</blockquote>
<a href="https://matrix.org/docs/matrix-concepts/elements-of-matrix/" target="_blank" rel="nofollow noopener noreferrer">Elements of Matrix</a> のページが視覚的でイメージが掴みやすい
APIのドキュメントは<a href="https://spec.matrix.org/latest/" target="_blank" rel="nofollow noopener noreferrer">ここ</a>