# Guitarwiter

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Greenery villa](https://cerebralvalley.ai/u/guitarwiter)
- **GitHub:** https://github.com/greeneryvilaofficial/guitarwiter
- **Demo video:** https://youtube.com/shorts/T9lSBLqMOKI?si=njXue7HOIThtCMaI
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/34

Guitarwiter - 100% Offline Guitar Tab Keyboard for Basa Jawa & Sunda 🎸

Problem: 90% of guitar tab apps need internet, crash on random input, and don't support local languages. Musicians in Lembang, West Java who speak Basa Sunda & Basa Jawa can't write tabs in their own language, especially offline.

Solution: Guitarwiter is a 100% OFFLINE custom keyboard that never crashes, built for Indonesia.

Proof of Authenticity (Murni - No AI Fake):
- Airplane Mode ON at 18.28 proof - status bar shows ✈️ icon, 0.63 KB/s, no internet (see video)
- Random input test: Typed "Yttoasaddsggyyyy" and "aqayyyy" - app stays alive, no crash (0:15 in Shorts)
- Built & tested on real Samsung device in Lembang, Indonesia
- Pure screen recording with third-party recorder that bypasses FLAG_SECURE - no AI-enhanced video

Tech:
- Built with Llama 3.2 for parsing guitar tab logic & autocomplete for Basa Jawa/Sunda
- 100% local processing, no calls API after install - Panel Cerdas (Offline)
- Hybrid layout Q=D3, W=D#3 for fast tab writing
- Lightweight, works on low-end Android

Impact: Musicians can create tabs anywhere - mountain, stage, airplane - in Basa Jawa & Sunda, without internet. Preserving local languages.

Demo Video: https://youtube.com/shorts/pxiq8HwdiCA - Shows airplane proof + random typing test.

## More from Meta Global AI Developer Hackathon

- [DAIRN](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/31)
- [WaravutVisual](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/32)
- [Toin](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/33)
- [HB Innovators](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/35)
- [paper-bro](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/36)
- [Ali Baba](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/37)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/34. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt