My iPhone 8 Refuses to Die: Now It's a Solar-Powered Vision OCR Server

My iPhone 8 Refuses to Die: Now It’s a Solar-Powered Vision OCR Server After running for over a year, my solar-powered setup has processed 83,418 OCR requests and 48GB of images using nothing but Apple’s Vision framework and renewable energy. Most people toss their old iPhones in a drawer when they upgrade. Me? I turned mine into a server that saves me money while running completely off-grid. Note: The OCR processing serves a separate side project unrelated to this blog, maybe I’ll write about it later....

June 12, 2025 · 9 min · Hemant Kumar

Reviving an Old Kindle Paperwhite 7th Gen

Most of us have a drawer (or a box) stuffed with old gadgets—a sort of tech graveyard we can’t quite bring ourselves to throw out. You know the one I’m talking about: that chaotic nest of tangled cables, forgotten adapters, and mysterious dongles that looks like a digital snake pit (yeah, exactly like that mess in the photo below). One day, while rummaging through my stash of dusty chargers and questionable cables, I found my trusty Kindle Paperwhite 7....

February 8, 2025 · 11 min · Hemant Kumar