Unfortunately, the Linux kernel and the common use of “Linux” in terms of an OS aren’t always the same. The kernel is important, but it’s about making sure that Arch, Ubuntu, Kali, Mint, Zorin, Fedora Core, etc. have those features - and to 99% of the computing public, all of those are Linux.
So if that PDA solves the problem, figure out how, and how to use that to make the UX better for the blind across the whole ecosystem.
Unfortunately, the Linux kernel and the common use of “Linux” in terms of an OS aren’t always the same. The kernel is important, but it’s about making sure that Arch, Ubuntu, Kali, Mint, Zorin, Fedora Core, etc. have those features - and to 99% of the computing public, all of those are Linux.
So if that PDA solves the problem, figure out how, and how to use that to make the UX better for the blind across the whole ecosystem.