@RandamuMaki @gmc no bigger write up, but if you have a desktop:
Go to message input, attach-app and select "v86 emu" app and start it.
Inside v86 app "Choose file", select an iso (download for example https://dl-cdn.alpinelinux.org/alpine/v3.21/releases/x86/alpine-standard-3.21.3-x86.iso) and hit "Start" button. Login as "Root", no password.