rename qemu example

examples/hello-from-qemu.nix

@@ -0,0 +1,44 @@
+{ config, pkgs, lib, ... } :
+let
+  inherit (pkgs) serviceFns;
+  svc = config.system.service;
+
+in rec {
+  imports = [
+    ../modules/network
+    ../modules/dnsmasq
+    ../modules/ssh
+  ];
+
+  hostname = "hello";
+
+  # configure the internal network (LAN) with an address
+  services.int = svc.network.address.build {
+    interface = config.hardware.networkInterfaces.lan;
+    family = "inet"; address ="10.3.0.1"; prefixLength = 16;
+  };
+
+  services.sshd = svc.ssh.build { };
+
+  users.root = {
+    # the password is "secret". Use mkpasswd -m sha512crypt to
+    # create this hashed password string
+    passwd = "$6$y7WZ5hM6l5nriLmo$5AJlmzQZ6WA.7uBC7S8L4o19ESR28Dg25v64/vDvvCN01Ms9QoHeGByj8lGlJ4/b.dbwR9Hq2KXurSnLigt1W1";
+  };
+
+  services.dns =
+    let interface = services.int;
+    in svc.dnsmasq.build {
+      inherit interface;
+      ranges = [
+        "10.3.0.10,10.3.0.240"
+        "::,constructor:$(output ${interface} ifname),ra-stateless"
+      ];
+
+      domain = "example.org";
+    };
+
+  defaultProfile.packages = with pkgs; [
+    figlet
+  ];
+}