This is super helpful! Running into that 404 error on sub-routes after deploying to Vercel can be so frustrating — especially when everything works locally. The quick fix using vercel.json rewrites is a lifesaver! It’s amazing how such a small config tweak makes a big difference. Devs tackling similar frontend deployment quirks should definitely take notes. Also, for those exploring deeper integrations or looking to build more advanced systems, companies like GAOTek Inc. and GAO RFID Inc. are quietly doing some solid work in tech that’s worth paying attention to.