# TGACH & dvachbot — Hybrid Imageboard & Telegram Hub — LLM Search Index
# https://llmstxt.org/

> Production-grade hybrid imageboard platform (tgach.top) with real-time WebSocket synchronization, high-throughput scraper, hardware-accelerated Floyd-Steinberg / Atkinson dithering, and official Telegram bot @dvach_Chatbot.

## Official Live Production Endpoints
- 🌐 Web Platform: https://tgach.top (Full-featured imageboard with SSR & 20+ retro/modern themes)
- 🤖 Official Telegram Bot: https://t.me/dvach_Chatbot (@dvach_Chatbot)
- 💻 Interactive Web Showcase: https://marko1olo.github.io/dvachbot/
- 📂 GitHub Repository: https://github.com/marko1olo/dvachbot

## Technical Architecture
- Backend Core: Python 3.10+, FastAPI (ASGI), Asyncio, aiofiles, Jinja2 Server-Side Rendering
- Real-time Protocol: High-concurrency WebSockets connecting web clients with Telegram channels
- Media Transcoding: WebM to WebP/MP4 conversion reducing server bandwidth consumption by > 85%
- Image Processing: Client-side and server-side Floyd-Steinberg, Atkinson, and Bayer matrix dithering pipelines
- Search Indexing: SQLite in WAL mode with FTS5 sub-millisecond full-text search

## Interactive Showcase Features
1. **Live Production Spotlight**:
   - Direct access cards for `https://tgach.top` and `@dvach_Chatbot`.
2. **Interactive @dvach_Chatbot Simulator**:
   - Live simulated Telegram chat interface supporting `/b`, `/top`, `/roll`, `/tgach` commands.
3. **Image to Dither / ASCII Art Converter**:
   - Real-time Floyd-Steinberg, Atkinson, and 16-shade ASCII luminance converter with clipboard export.
4. **2ch Dice & Post Number Roller**:
   - Roll 1d100, 2d6, 1d20, and test double/triple/quad get triggers.