LLaVA, Whisper and a few bash scripts should be able to do it. I don't know how helpful the model is with screenshots though.

1. Download LLaVA from https://github.com/Mozilla-Ocho/llamafile

2. Run Whisper locally for speech to text

3. Save screenshots and send to the model, with a script like https://til.dave.engineer/openai/gpt-4-vision/