Use repl subcommand to open a convenient repl. That's
mostly equivalent to running :lf ...,
config = nixosConfigurations.<sys>.config, etc.
build-vm can build nice qemu vms. You can pass extra
qemu args to the script, e.g.:
-vnc 0.0.0.0:0 for VNC.-spice port=5900,disable-ticketing=on for SPICE and
better performance then VNC.-m 8192 for more memory (8GiB here)-smp 4 for more cpu (4 here)You can use that to test your configurations on remote servers, by
using e.g. remmina to connect to VNC/SPICE.