nano-banana

# Nano Banana Image Generation Generate images via Gemini CLI with **persistent visual memory**. ## Core Insight: Two Warm Caches Gemini maintains a KV cache across requests. Claude maintains context by seeing generated images. Use `--resume latest` to keep Gemini's cache warm across iterations. ## Usage ```bash # First generation — starts fresh session gemini --yolo "/generate 'blue circle on white background'" # Subsequent generations — resume for warm cache gemini --yolo --resume latest -p "/generate 'same circle but red'" # Edit existing image gemini --yolo --resume latest -p "/edit path/to/image.png 'make it darker'" ``` **Critical**: Always use `--resume latest -p "..."` for iterations. Sessions are per-directory. Different directories = different visual memories. ## Commands | Command | Use Case | |---------|----------| | `/generate "prompt"` | Text-to-image | | `/edit image.png "instruction"` | Modify existing | | `/icon "description"` | App icons, favicons | | `/diagram "description"` | Flowcharts, architecture | | `/pattern "description"` | Seamless textures | See [references/CLI.md](references/CLI.md) for full command flags. ## Output Images save to `./nanobanana-output/` in the current directory. ## Transparency Gemini cannot output true alpha. Use difference matting: generate on white, edit to black, extract alpha. See [references/TRANSPARENCY.md](references/TRANSPARENCY.md).