This app turned my old Pixel 4a into a Bluetooth keyboard for my desktop PC

The article highlights how an old Android phone can be repurposed into a Bluetooth keyboard, trackpad, or gamepad using an offline, open-source app with no companion software or network dependency. For CIOs and technology leaders, the business takeaway is that low-cost device reuse and software-driven peripheral substitution can extend asset life, reduce unnecessary hardware purchases, and improve user convenience for hybrid work, media, and kiosk-style environments—while also underscoring the need to balance flexibility against battery, reliability, and supportability concerns.