Flake parts with x64 and ARM support for devshell on both Linux and Mac

nix/system/system.nix

@@ -0,0 +1,30 @@
+{ pkgs, ... }: {
+  boot = {
+    kernel.sysctl."net.ipv4.ip_forward" = true;
+    loader.systemd-boot.enable = true;
+    loader.efi.canTouchEfiVariables = true;
+  };
+
+  environment.systemPackages = with pkgs; [ git pciutils vim wget ];
+
+  networking = {
+    hostName = "eve-psr-nix0";
+    firewall = {
+      allowedTCPPorts = [ 22 80 443 ];
+      allowedUDPPorts = [ 22 80 443 53 ];
+    };
+  };
+
+  programs.ssh.knownHosts = {
+    selbeiskami = {
+      hostNames = [ "192.168.0.57" ];
+      publicKey = "192.168.0.57 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBiTyWzAu7V2Jkk4rqEjBLu+lAhhkLTO8W/PGb8HkeqQ";
+    };
+    matricx = {
+      hostNames = [ "192.168.0.130" "matri.cx" ];
+      publicKey = "matri.cx ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMyaPYK0HcKAjrD1g+FPqPEU9FJ0I6+iKYmQlWKE0zHp";
+    };
+  };
+
+  time.timeZone = "America/Chicago";
+}