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TECH_FEATURES.md

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+# TalkEdit — Tech Stack, Tools, and Planned Features
+
+This document summarizes the chosen technology, tooling, the full planned feature set for the MVP, recommended additions, removals, and items to put on the back burner.
+
+## Overview
+- Goal: Offline, local text-based audio/video editor (Descript-style) focused on spoken-word creators (podcasters, YouTubers). Fast, privacy-first, single-file installer.
+
+## Tech Stack
+- Frontend: React + Vite + Tailwind CSS + shadcn/ui
+- Backend: Tauri 2.0 (Rust) for file I/O, invoking native binaries, and exposing commands to the UI
+- Transcription: Whisper.cpp (Rust bindings like `whisper-rs` / `whisper-cpp-sys`) — word-level timestamps
+- Audio/Video Processing: FFmpeg invoked from Rust (or `ffmpeg-next` Rust crate)
+- State: Zustand (in-frontend store)
+- Packaging: Tauri `tauri build` for cross-platform installers
+- Optional local tools: Ollama (optional local LLMs) for advanced on-device heuristics
+
+## Developer Tools
+- Rust toolchain (cargo, rustc)
+- Node.js + npm/yarn for frontend
+- FFmpeg binaries (platform-specific; bundled or downloaded at install)
+- Build/test: Tauri CLI, Vite dev server
+
+## MVP Feature List (Planned)
+1. Drag-and-drop import (audio/video auto audio-extract)
+2. One-click local transcription (model selector: tiny/base → larger models)
+3. Scrollable, Google-Doc-style transcript editor
+   - Click word → seek video/audio
+   - Highlight + Delete → remove corresponding media segment (smart 150–250ms fades)
+4. One-click "Clean it" button
+   - Remove fillers (configurable list)
+   - Remove long pauses (>0.8s) by default
+5. One-click audio polish chain (FFmpeg): normalize, light compression, basic noise reduction
+6. Preview with synced playback, undo/redo, project save/load
+7. Export MP4/audio with optional SRT/VTT captions and burned-in captions
+
+## Recommended Additions (near-term, high ROI)
+- Model-size chooser + progressive fallback (start fast, upgrade model later)
+- Local GPU/CPU detection & recommended model/settings UI
+- Per-project incremental transcription: re-run only edited segments
+- "Preview cleaning" dry-run that highlights candidate removals before applying
+- Export size/time estimator and suggested export presets
+- Custom filler lists per-project and import/export of filler lists
+- High-quality offline captions export (SRT + VTT + speaker labels)
+- Accessibility export presets (podcast vs YouTube presets)
+
+## Remove / Defer (Back Burner)
+These broaden scope or add legal/privacy surface — defer for now.
+- Voice cloning / TTS: DEFER
+- Multi-track, full timeline NLE features: DEFER
+- Real-time collaboration / cloud sync: DEFER
+- Built-in cloud processing by default: DEFER (make optional add-on later)
+
+## Risks & Mitigations
+- Large model sizes: don't bundle large models; download on-demand and document storage location.
+- Timestamp accuracy: provide manual word-adjust UI and per-segment re-run.
+- FFmpeg packaging/licensing: ship platform-specific binaries or use Tauri bundling guidance; document license compliance.
+
+## Prioritized Quick Wins
+1. Model chooser UI + auto-fallback settings
+2. "Preview cleaning" dry-run UI
+3. Per-project incremental transcription saving
+
+## Next Steps for Implementation
+- Add model chooser UI and capability detection early in the frontend iteration.
+- Implement Rust transcription command and a compact API for incremental transcription.
+- Implement FFmpeg polish templates and a minimal preview pipeline.
+
+---
+Generated as requested to capture tech, tools, planned features, and the recommended add/remove/defer list.