nostr:nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqx0r5gflnk2mn6h3c70nvnywpy2j46gzqwg6k7uw6fxswyz0md9qq0kp50y virt-manager is better, but if you're trying to just run one-off experimentation environments then just use QEMU directly (virt-manager uses libvirtd, which uses QEMU, which optionally uses kvm for hardware-accelerated virtualization, or emulation if kvm is not available)