Show HN: Not_pad – a local Markdown notebook for thinking (newest ideas first)

I built a small Windows app for capturing ideas and AI chats. Each topic or project is a single local Markdown file. When you open a file, the cursor starts at the top. New thoughts go first. Older context stays below. I didn’t want an IDE, a second brain, or a syncing system — just a quiet place to drop thoughts before they evaporate. Built with Python + Tkinter, with help from AI. Local-only, minimal, opinionated.