A few of them are almost certainly shortcomings in Ostrich, while others seem to intend to match literal full strings, like ^(로그인하지 않고)$ ("without logging in"). Presumably they're from internal use.
What about other solutions? In the era of Docker we are primed to think about portability. Surely we could find a solution to directly leverage our existing C# codebase. What about running the services locally on specific ports? That won’t work on consoles. What about C# to C++ solutions like Unity’s IL2CPP? Proprietary and closed source. None of the immediately obvious solutions were viable here.
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目前伊朗伊斯兰革命卫队暂未发表官方声明。（央视新闻）
Grammarly has a more friendly UI/UX