Open source collaborative text editors

For years now I've had this itch, trying to find the "perfect" collaborative text editor. But not just any collaborative text editor, oh no, my speciality is finding (well, at least looking for) open source real-time collaborative web-based rich text editors (i.e. not just plain text, but structured content as well). The focus of this post is thus on this quite niche category of open source tools

[braitom]

リアルタイムコラボレーションができるオープンソースのWebテキストエディタの比較。CKEditor、Atlaskit Editorなどが紹介され特徴が説明されている。

[sonota88]

via https://news.ycombinator.com/item?id=19845776