708fb268bc514241a9df16a8f9f4fd236697a1f0
CLI modes: - --send-tone <secs>: send 440Hz test tone (no mic needed) - --record <file.raw>: save received audio to raw PCM file - --help: usage info - Combine: --send-tone 10 --record out.raw Raw PCM format: 48kHz mono s16le Play with: ffplay -f s16le -ar 48000 -ac 1 out.raw Build scripts: - scripts/build-linux.sh: Hetzner VPS build with auto-cleanup - scripts/cleanup-builder.sh: kill stale builders Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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