Automatically generate and burn captions into videos using AI transcription.

• Rust: https://rustup.rs/
• Bun: https://bun.sh/
• FFmpeg (auto-installed on macOS)

1. Clone the repository

   git clone <repository-url>
   cd capslap

2. Build Rust core

   cd rust
   cargo build
   cd ..

3. Install Electron dependencies

   cd electron
   bun install

   FFmpeg will be automatically downloaded on macOS during bun install.

4. Run the app

   bun run dev

Local whisper models can be downloaded directly through the app UI, or manually:

mkdir -p rust/models

# Tiny model (fastest, 75 MB)
curl -L https://huggingface.co/ggerganov/whisper.cpp/resolve/main/ggml-tiny.bin \
  -o rust/models/ggml-tiny.bin

# Base model (recommended, 142 MB)
curl -L https://huggingface.co/ggerganov/whisper.cpp/resolve/main/ggml-base.bin \
  -o rust/models/ggml-base.bin

Alternatively, use OpenAI API (requires API key) without downloading models.

FFmpeg is automatically downloaded during bun install via the postinstall script.