The QEMU libraries left the public `qemu-prebuilt` release: they are
GPL-2.0 derivatives of QEMU, and distributing one obliges us to hand the
recipient the corresponding source, so binary and source now live in one
place -- velxio.dev's gated endpoint, where the qemu-source-<commit>
archive sits beside them.
Six documents still pointed at the release. Two of them shipped runnable
commands that now 404: the deploy-to-container curl pair in the WiFi
notes, and the e2e README's claim about where CI gets its libraries
(that workflow had in fact moved to the gated endpoint some time ago --
only the README was stale).
Also corrects two things that were already wrong before today:
QEMU_RELEASE_URL is documented with the release as its default, but
Dockerfile.standalone defaults it to empty and reaches the binaries via
VELXIO_LICENSE_KEY; and the asset inventory omitted the macOS, Windows
and esp32s3_rev0_rom entries.
af55a9efb8