Vibe-coded a tool to ELI5 research papers in-place [P]

As I was reading interp papers, I found myself copy-pasting passages back and forth to Claude to parse through them. Eventually just vibe-coded a tool to annotate and discuss papers in place.

https://paper-reader.dev - select a passage, a formula, or a figure, and explain the selection with the full paper as context. You can also select a citation to get a brief overview of the cited paper without switching context.

Repo is at github.com/tumanian/paper-reader if anyone curious (mostly Claude, some Cursor, some me - built on vercel and supabase).

Please be gentle, this runs on my own API key with a modest cap, so don't be too enthusiastic.

Hoping this can be useful to someone, and genuinely looking for feedback, especially on where the explanations are wrong or unhelpful — that's the part I can't fully self-evaluate.