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Nexthena app
离线优先的AI白板应用，无账户无云同步，Windows/Linux免费，macOS仅$2一次性付费。
Built a local-first AI whiteboard app — free on Windows/Linux, $2 one-time on macOS [OC] Hey all — I built Nexthena, a desktop whiteboard that runs en…
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Show HN: Offline Typing Mastery
离线打字练习神器：用真实语料训练，可视化回放和习惯日历让你快速提升。
I built this typing mastery application yesterday. It took just few hours. I wanted to have features that I wanted to use for improving the typing spe…