hosts/zinc: move initrd stuff to seperate file

hosts/zinc/initrd.nix

@@ -0,0 +1,28 @@
+{ config, ... }:
+
+{
+
+  boot.initrd.network.enable = true;
+  boot.initrd.network.ssh = {
+    enable = true;
+    port = 1022;
+    #shell = "/bin/cryptsetup-askpass";
+    authorizedKeys = config.users.users.clerie.openssh.authorizedKeys.keys;
+    hostKeys = [
+      "/var/src/secrets/initrd/ssh_host_ed25519_key"
+    ];
+  };
+  boot.initrd.kernelModules = [
+    "igc" # integrated rj45 network interface
+    "cdc_ether" # external 5G modem via usb
+  ];
+  boot.kernelParams = [ "ip=dhcp" ];
+
+  boot.initrd.network.wireguard = {
+    enable = true;
+    ipv6s = [ "2a01:4f8:c0c:15f1::8110/128" ];
+    ipv4s = [ "10.20.30.110/32" ];
+    privateKeyFile = "/var/src/secrets/wireguard/wg-initrd";
+  };
+
+}