Airglow browser lets users modify YouTube, Gmail and Spotify in real time

# Summary Independent developer Ramazan Rakhmatullin has created Airglow, a custom browser that allows real-time modification of popular websites like YouTube, Gmail, and Spotify by embedding site-specific patches directly into the browser rather than relying on separate extensions. Unlike traditional user-script tools, Airglow uses its own rendering engine and ships pre-built customization modules, lowering the barrier for non-technical users to personalize their web experience. The browser represents a shift toward ultra-personalized web tools, though it raises security and terms-of-service concerns due to its use of reverse-engineered API requests for sites without public access.