14 years ago, when the iPod Video was popular and it had an unlocked bootloader that allowed installing third-party software, lots of tech-inclined people repla

14 years ago, when the iPod Video was popular and it had an unlocked bootloader that allowed installing third-party software, lots of tech-inclined people replaced the Apple OS with Rockbox, which had support for FLAC. Unfortunately, with the next generation of iPods, Apple locked the device down, and the only lossless format supported was Apple's own.