The #Microsoft Sculpt keyboard is apparently dearly loved by many, but while idly browsing for second-hand split keyboards on eBay, I discovered many are sold without the proprietary dongle... because the dongle tends to die after a couple of years of life, and MS offer no replacement or alternative, leading to expensive keyboards that become ewaste very quickly.
YSK there are multiple projects that resurrect Sculpts as wired keyboards: https://techberet.com/2024/09/07/replacement-pcb-for-sculpt-rp2040