This page is a durable file on the embodiment's persistent disk. On boot, the
embodiment materialises it into nginx's docroot over legion://machine/fs and runs
nginx via legion://machine/process — the binary itself delivered by
legion://machine/loader, nothing pre-baked in the image.
No bash. A single systemd unit execs the embodiment; the embodiment brings up the
membrane, runs the node, serves this content, and powers the machine off when idle via
legion://handles/system.shutdown — waking again on the next request.