Greasy Fork is available in English.
改进 YouTube 剧场模式，参考 Twitch.tv 的设计，增强视频与聊天室布局，同时保持性能与兼容性，也达到了类似B站的网页全屏功能。
Noted, I'll try to look into this.
Alright it turns out that it's VERY hard for me to look into this issue without a physical Apple machine to debug on. I will give up and consider this script as incompatible with Apple systems and provide no explicit support. Feel free to fix it yourself if you are willing.
Okay, I think I have an idea what the problem is, but the fix will take while.
Not working with Safari on macOS playing recorded streams (chat replay).