read a filename from the user

Honestly for something repetitive like this I’d suggest trying to avoid user interaction completely. It’s probably better to get that info from the DVD drive itself (blkid -o value -s LABEL /dev/dvd), or if that fails assign a number.

First they came for 486, and I did not speak out - because I’ve never actually owned a 486…

Thanks! I will try and report the results back to you.

Do I have to build all other parts myself before then? (I’m trying to package it for Nix so that other people can also build it more easily)

Are there any instructions on how to build this all to get the ventoy installer binary that can replace upstream? Or is the project not up to this stage yet? I can go without Windows and FreeBSD support.