nix-bitcoin: pkgs: system: rec { inherit (nix-bitcoin.inputs) nixpkgs; mkVMScript = vm: pkgs.writers.writeBash "run-vm" '' set -euo pipefail export TMPDIR=$(mktemp -d /tmp/nix-bitcoin-vm.XXX) trap "rm -rf $TMPDIR" EXIT export NIX_DISK_IMAGE=$TMPDIR/nixos.qcow2 QEMU_OPTS="-smp $(nproc) -m 1500" ${vm}/bin/run-*-vm ''; vm = (import "${nixpkgs}/nixos" { inherit system; configuration = { config, lib, modulesPath, ... }: { imports = [ nix-bitcoin.nixosModules.default "${nix-bitcoin}/modules/presets/secure-node.nix" "${modulesPath}/virtualisation/qemu-vm.nix" ]; virtualisation.graphics = false; nix-bitcoin.generateSecrets = true; services.clightning.enable = true; # For faster startup in offline VMs services.clightning.extraConfig = "disable-dns"; nixpkgs.pkgs = pkgs; services.getty.autologinUser = "root"; nix.nixPath = [ "nixpkgs=${nixpkgs}" ]; services.getty.helpLine = lib.mkAfter '' Welcome to nix-bitcoin! To explore running services, try the following commands: - nodeinfo - systemctl status bitcoind - systemctl status clightning ''; # Power off VM when the user exits the shell systemd.services."serial-getty@".preStop = '' echo o >/proc/sysrq-trigger ''; system.stateVersion = lib.mkDefault config.system.nixos.release; }; }).config.system.build.vm; runVM = mkVMScript vm; }