It's pretty unfortunate that NodeJS still doesn't have Fetch API based servers included while still being the most used JS runtime. This justifies server side libraries keep promoting Express usage by default on docs, which is not good considering that it's a NodeJS specific one.
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안 그래도 마침 BotKit에 Node.js 호환성을 추가하고 매뉴얼을 쓰고 있는데, Node.js에는 deno serve 같은 게 없어서 설명할 게 너무 많아진다… node --serve --transform-types bot.ts 이렇게 할 수만 있다면 딱 좋은데!