Show HN: Marginal IA – An open source Readwise for physical books (github.com)

Hi HN,

I came up with a simple web app to take digital notes from physical books. The goal is to remove the friction between reading on paper and a well-formatted Markdown file.

It uses Whisper to record voice notes that are then parsed by an LLM. The notes are saved in a database and can be exported from computer or phone into Markdown (for Obsidian) or CSV (for Notion).

It is very early days (v0.1.0). Right now, it purely captures the notes; there is no search or fancy organisation yet. I just wanted to solve the capture problem first.

It is built with Python, Streamlit, and Supabase.

You can try it here: https://marginal-ia.com/ (might reach rate limits!)

Cheers.