Behind-the-scenes technical notes, founder notes, and build logs. https://cleftnotes.com en-us https://cleftnotes.com/blog/posts/how-clefts-transcription-evolved https://cleftnotes.com/blog/posts/how-clefts-transcription-evolved Cleft has transcribed your voice on-device since the first builds. The cloud only ever handled the summary step. A look at why we made that choice early, and the work to make on-device transcription fast and accurate. Wed, 20 May 2026 00:00:00 GMT build-in-publicspeech-to-texton-devicedev-log https://cleftnotes.com/blog/posts/bringing-cleft-to-the-car https://cleftnotes.com/blog/posts/bringing-cleft-to-the-car CarPlay is the most constrained surface we have shipped: you cannot look at the screen, you only get templated controls, and you might lose signal at speed. Here is how those limits shaped the feature. Wed, 06 May 2026 00:00:00 GMT build-in-publiccarplaydev-log https://cleftnotes.com/blog/posts/quieter-under-the-hood https://cleftnotes.com/blog/posts/quieter-under-the-hood 1.12 through 1.12.3 added almost no new buttons on purpose. We spent the quarter making the app you already use harder to break. Tue, 24 Mar 2026 00:00:00 GMT build-in-publicreliabilitydev-log https://cleftnotes.com/blog/posts/recording-that-survives-the-real-world https://cleftnotes.com/blog/posts/recording-that-survives-the-real-world The hard part of a voice app is capturing clean audio on real devices that connect late, switch mid-sentence, and get interrupted by calls. Here is the work that went into making recording survive that. Tue, 10 Feb 2026 00:00:00 GMT build-in-publicaudiodev-log https://cleftnotes.com/blog/posts/rebuilding-sync-so-your-notes-just-show-up https://cleftnotes.com/blog/posts/rebuilding-sync-so-your-notes-just-show-up People asked us for a black hole they could dump a thought into and trust it was captured and synced everywhere. Sync had drifted from that, so for 1.10.1 we rebuilt the sync layer. Thu, 18 Dec 2025 00:00:00 GMT build-in-publicsyncdev-log https://cleftnotes.com/blog/posts/liquid-speech https://cleftnotes.com/blog/posts/liquid-speech Justin published Liquid Speech, an MIT-licensed Flutter package for using Apple's native SpeechAnalyzer API on iOS and macOS while still compiling cleanly on older OS versions. Fri, 31 Oct 2025 00:00:00 GMT build-in-publicopen-sourcespeech-to-textflutterdev-log https://cleftnotes.com/blog/posts/getting-react-native-skia-to-build-for-mac-catalyst https://cleftnotes.com/blog/posts/getting-react-native-skia-to-build-for-mac-catalyst During an early React Native build of Cleft, react-native-skia would not compile for Mac Catalyst. I took a stalled community fix, brought it current against main, and got macOS Catalyst support merged upstream in v2.3.0. Sat, 04 Oct 2025 00:00:00 GMT build-in-publicopen-sourcereact-nativemacosdev-log