The Prompt & The Ponder
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local-first

3 articles

The Rest of the Crate: Tempo, Key, and Never Stranding a File

Part 2 of building cratemind: the unglamorous 80%, tempo that lies by an octave, key from 1990s music theory, and a downloader that never quietly loses a track.

June 23, 2026

·open-sourceaudio-ml

Your Music Has No Genre: Reading It Off the Waveform

Spotify deleted the BPM API and underground techno has no genre tag anywhere, so I stopped looking the genre up and started computing it from the audio.

June 15, 2026

·audio-mllocal-first

Building Truly Offline Apps Isn’t Magic: Local-First with Next.js, Flutter, and On-Device AI

Starting a new app, most of us wire up the backend before we even sketch the core screens -- then hope our offline mode just works later. It rarely does.

October 08, 2025

·flutterlocal-first