I'm a final-year Electronics & Communication Engineering student about to start a

robotics-focused master's. For the last two years, "finding a paper" has meant

checking arXiv, then IEEE, then MDPI, then Google Scholar, then still not being sure

if the PDF link I found was actually free or just a paywall in disguise.

So I built Cortexa — a free, open-access-only search engine for robotics, ML,