qemu-user-static

The registration script must run with `--privileged` to modify `/proc/sys/fs/binfmt_misc`, posing security risks and limiting use in locked-down environments.

Only works on x86_64 hosts, as explicitly stated in the README, so it cannot be used on other architectures like aarch64, restricting its utility.

Using QEMU user-mode emulation introduces significant latency and reduced performance compared to native execution, making it unsuitable for performance-critical tasks.

Without persistent registration, users must manually copy QEMU binaries into containers or use volume mounts, adding steps to the workflow, as illustrated in the usage examples.