Developer builds Yap, a Chrome voice assistant, with Jev over a weekend

Saketh BSV @saketh_bsvOriginally posted 2026.09.23

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Built Yap over the weekend: talk to Chrome, it just does it. Runs on TypeSafe's Jev. A nightly Claude routine reads telemetry and tunes the prompts and tests. This video? Opus 5.5, one prompt + a few tweaks. Self-learning apps are now hands-off. https://chromewebstore.google.com/detail/hnmlabldbbjcbagcfjkdbncojhafpgnk