Sunday build session. No new feature today — just one bug that finally made sense after staring at it all week. Turns out patience is a transferable skill. If you've ever watched a kid sound out a word for the 50th time and then nail it — you know the feeling. Follow the build.
HSD OS · Build Log — June 21, 2026
The bug: The Japanese language toggle was only translating the left sidebar. Every other panel — assessment, learning path, daily missions, confidence card, warm-up modal, settings — stayed in English. For an app built for Japanese families learning English, that's the whole app staying in English.
The fix: The translation hook (useLang) was available everywhere, but most components never called it. Went through every component one by one — Assessment, LearningPath, ProgressJourney, WarmUp, and all the Dashboard sub-cards — and wired each one to the i18n string table. One toggle now switches the entire platform. ~150 string pairs, both directions.
The detail that mattered: The onboarding questions display translated labels in Japanese, but still send the original English values to the AI API. Small thing. Means Gemini keeps generating accurate learning paths regardless of which language the user is reading in.
Also: Cleaned up the admin dashboard. The warning engine was checking for an ElevenLabs key with a VITE_ prefix that can never exist — it's a server-side key. Fixed the check, corrected the domain references from the old Cloudflare URL to hsdos.ai, and updated the Platform Health card to reflect 15 completed items instead of 7.
There's a moment when a kid sounds out a word for the 50th time and something clicks. The word becomes theirs. That's what this build is for. Today's fix means that moment can happen in their language first.
57 days to XPRIZE submission.
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