Begun yubikey integration

modules/home/ssh.nix

@@ -0,0 +1,30 @@
+{
+  ...
+}:
+{
+  programs.ssh = {
+    enable = true;
+    enableDefaultConfig = false;
+    matchBlocks = {
+      "*" = {
+        addKeysToAgent = "yes";
+        identityFile = [ "~/.ssh/id_ed25519_sk_rk" ];
+      };
+      "stu" = {
+        hostname = "stu.cs.jmu.edu";
+        user = "tamassno";
+        localForwards = [
+          {
+            bind.port = 5432;
+            host = {
+              address = "data.cs.jmu.edu";
+              port = 5432;
+            };
+          }
+        ];
+        serverAliveCountMax = 5;
+        serverAliveInterval = 60;
+      };
+    };
+  };
+}