diff --git a/hosts/pek0/Caddyfile b/hosts/pek0/Caddyfile
deleted file mode 100644
index a4a5109..0000000
--- a/hosts/pek0/Caddyfile
+++ /dev/null
@@ -1,67 +0,0 @@
-{
-	servers {
-		trusted_proxies static private_ranges
-		trusted_proxies_strict
-	}
-}
-
-(default) {
-	encode zstd gzip
-	handle_path /robots.txt {
-		file_server * {
-			root @robots@
-		}
-	}
-}
-
-http://pek0.ny4.dev:80 {
-	import default
-	basicauth {
-		prometheus $2a$14$2Phk4tobM04H4XiGegB3TuEXkyORCKMKW8TptYPTPXUWmZgtGBj/.
-	}
-	reverse_proxy localhost:9091
-}
-
-http://mastodon.ny4.dev:80 {
-	import default
-	handle_path /system/* {
-		file_server * {
-			root /var/lib/mastodon/public-system
-		}
-	}
-
-	handle /api/v1/streaming/* {
-		reverse_proxy unix//run/mastodon-streaming/streaming-1.socket {
-			header_up X-Forwarded-Proto "https"
-		}
-	}
-
-	route * {
-		file_server * {
-			root @mastodon@/public
-			pass_thru
-		}
-		reverse_proxy * unix//run/mastodon-web/web.socket {
-			header_up X-Forwarded-Proto "https"
-		}
-	}
-
-	handle_errors {
-		root * @mastodon@/public
-		rewrite 500.html
-		file_server
-	}
-}
-
-http://matrix.ny4.dev:80 {
-	import default
-	reverse_proxy /_matrix/* unix//run/matrix-synapse/synapse.sock {
-		header_up X-Forwarded-Proto "https"
-	}
-	reverse_proxy /_synapse/client/* unix//run/matrix-synapse/synapse.sock {
-		header_up X-Forwarded-Proto "https"
-	}
-	reverse_proxy /health unix//run/matrix-synapse/synapse.sock {
-		header_up X-Forwarded-Proto "https"
-	}
-}
diff --git a/hosts/pek0/default.nix b/hosts/pek0/default.nix
index 0e10fee..3b276b5 100644
--- a/hosts/pek0/default.nix
+++ b/hosts/pek0/default.nix
@@ -67,12 +67,21 @@
     };
   };
 
-  services.caddy = {
-    enable = true;
-    configFile = pkgs.replaceVars ./Caddyfile {
-      robots = toString ../tyo0/robots.txt;
-      inherit (pkgs) mastodon;
+  services.caddy.enable = true;
+  services.caddy.settings.apps.http.servers.srv0 = {
+    listen = [ ":80" ];
+    trusted_proxies = {
+      ranges = [
+        "192.168.0.0/16"
+        "172.16.0.0/12"
+        "10.0.0.0/8"
+        "127.0.0.1/8"
+        "fd00::/8"
+        "::1"
+      ];
+      source = "static";
     };
+    trusted_proxies_strict = 1;
   };
 
   systemd.services.caddy.serviceConfig = {
diff --git a/hosts/pek0/services/mastodon.nix b/hosts/pek0/services/mastodon.nix
index c8e6d69..9dbcf86 100644
--- a/hosts/pek0/services/mastodon.nix
+++ b/hosts/pek0/services/mastodon.nix
@@ -1,4 +1,9 @@
-{ config, ... }:
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
 {
   services.mastodon = {
     enable = true;
@@ -35,4 +40,82 @@
   };
 
   systemd.services.mastodon-sidekiq-all.environment = config.networking.proxy.envVars;
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "mastodon.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "subroute";
+      routes = [
+        {
+          match = lib.singleton {
+            path = [ "/api/v1/streaming/*" ];
+          };
+          handle = lib.singleton {
+            handler = "reverse_proxy";
+            headers.request.set."X-Forwarded-Proto" = [ "https" ];
+            upstreams = lib.singleton {
+              dial = "unix//run/mastodon-streaming/streaming-1.socket";
+            };
+          };
+        }
+        {
+          match = lib.singleton {
+            path = [ "/system/*" ];
+          };
+          handle = [
+            {
+              handler = "rewrite";
+              strip_path_prefix = "/system";
+            }
+            {
+              handler = "file_server";
+              root = "/var/lib/mastodon/public-system";
+            }
+          ];
+        }
+        {
+          handle = [
+            {
+              handler = "file_server";
+              root = "${pkgs.mastodon}/public";
+              pass_thru = true;
+            }
+            {
+              handler = "reverse_proxy";
+              headers.request.set."X-Forwarded-Proto" = [ "https" ];
+              upstreams = lib.singleton {
+                dial = "unix//run/mastodon-web/web.socket";
+              };
+            }
+          ];
+        }
+      ];
+    };
+  };
+
+  services.caddy.settings.apps.http.servers.srv0.errors.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "mastodon.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "subroute";
+      routes = [
+        {
+          handle = lib.singleton {
+            handler = "rewrite";
+            uri = "500.html";
+          };
+        }
+        {
+          handle = lib.singleton {
+            handler = "file_server";
+            root = "${pkgs.mastodon}/public";
+          };
+        }
+      ];
+    };
+  };
+
 }
diff --git a/hosts/pek0/services/matrix.nix b/hosts/pek0/services/matrix.nix
index 7c266e7..7c434cf 100644
--- a/hosts/pek0/services/matrix.nix
+++ b/hosts/pek0/services/matrix.nix
@@ -54,4 +54,29 @@
     environment = config.networking.proxy.envVars;
     serviceConfig.RuntimeDirectory = [ "matrix-synapse" ];
   };
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "matrix.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "subroute";
+      routes = lib.singleton {
+        match = lib.singleton {
+          path = [
+            "/_matrix/*"
+            "/_synapse/*"
+            "/health"
+          ];
+        };
+        handle = lib.singleton {
+          handler = "reverse_proxy";
+          headers.request.set."X-Forwarded-Proto" = [ "https" ];
+          upstreams = lib.singleton {
+            dial = "unix//run/matrix-synapse/synapse.sock";
+          };
+        };
+      };
+    };
+  };
 }
diff --git a/hosts/tyo0/Caddyfile b/hosts/tyo0/Caddyfile
deleted file mode 100644
index 0656b88..0000000
--- a/hosts/tyo0/Caddyfile
+++ /dev/null
@@ -1,115 +0,0 @@
-(default) {
-	encode zstd gzip
-	handle_path /robots.txt {
-		file_server * {
-			root /var/www/robots/robots.txt
-		}
-	}
-}
-
-www.ny4.dev {
-	import default
-	redir https://blog.ny4.dev
-}
-
-# get the certificate for hysteria
-tyo0.ny4.dev {
-	import default
-	basicauth {
-		prometheus $2a$14$2Phk4tobM04H4XiGegB3TuEXkyORCKMKW8TptYPTPXUWmZgtGBj/.
-	}
-	reverse_proxy localhost:9091
-}
-
-ny4.dev {
-	import default
-
-	# Synapse
-	header /.well-known/matrix/* Content-Type application/json
-	header /.well-known/matrix/* Access-Control-Allow-Origin *
-	handle_path /.well-known/matrix/* {
-		file_server * {
-			root /var/www/matrix
-		}
-	}
-
-	# Mastodon
-	header /.well-known/webfinger Access-Control-Allow-Origin *
-	redir /.well-known/webfinger https://mastodon.ny4.dev{uri} permanent
-
-	# TODO: Build Hugo blog with Nix
-	# How do I use hugo modules without using FOD?
-	route * {
-		redir https://blog.ny4.dev
-	}
-}
-
-pb.ny4.dev {
-	import default
-	reverse_proxy localhost:8200
-}
-
-ntfy.ny4.dev {
-	import default
-	reverse_proxy unix//run/ntfy-sh/ntfy.sock
-}
-
-id.ny4.dev {
-	import default
-	reverse_proxy localhost:8800
-}
-
-element.ny4.dev {
-	import default
-	root * @element@
-	header X-Frame-Options SAMEORIGIN;
-	header X-Content-Type-Options nosniff;
-	header X-XSS-Protection "1; mode=block";
-	header Content-Security-Policy "frame-ancestors 'self'";
-	file_server
-}
-
-cinny.ny4.dev {
-	import default
-
-	@index {
-		not path /index.html
-		not path /public/*
-		not path /assets/*
-		not path /config.json
-		not path /manifest.json
-		not path /pdf.worker.min.js
-		not path /olm.wasm
-		path /*
-	}
-
-	root * @cinny@
-	rewrite /*/olm.wasm /olm.wasm
-	rewrite @index /index.html
-	file_server
-}
-
-git.ny4.dev {
-	import default
-	reverse_proxy unix//run/forgejo/forgejo.sock
-}
-
-rss.ny4.dev {
-	import default
-	reverse_proxy localhost:9300
-}
-
-reddit.ny4.dev {
-	import default
-	reverse_proxy localhost:9400
-}
-
-vault.ny4.dev {
-	import default
-	reverse_proxy localhost:9500
-}
-
-prom.ny4.dev {
-	import default
-	reverse_proxy localhost:9090
-}
diff --git a/hosts/tyo0/default.nix b/hosts/tyo0/default.nix
index f35737d..b3a7238 100644
--- a/hosts/tyo0/default.nix
+++ b/hosts/tyo0/default.nix
@@ -23,6 +23,7 @@
   ];
 
   boot.loader.grub.device = lib.mkForce "/dev/nvme0n1";
+  networking.hostName = "tyo0";
   system.stateVersion = "24.05";
 
   swapDevices = lib.singleton {
@@ -57,32 +58,146 @@
     443
   ];
 
-  systemd.tmpfiles.settings = {
-    "10-www" = {
-      "/var/www/robots/robots.txt".C.argument = toString ./robots.txt;
-      "/var/www/matrix/client".C.argument = toString ./matrix-client.json;
-      "/var/www/matrix/server".C.argument = toString ./matrix-server.json;
-    };
+  services.caddy.enable = true;
+  services.caddy.settings.apps.http.servers.srv0 = {
+    listen = [ ":443" ];
   };
 
-  services.caddy = {
-    enable = true;
-    configFile = pkgs.replaceVars ./Caddyfile {
-      "element" = pkgs.element-web.override {
-        conf.default_server_config."m.homeserver" = {
-          base_url = "https://matrix.ny4.dev";
-          server_name = "ny4.dev";
+  services.caddy.settings.apps.http.servers.srv0.routes = [
+    {
+      match = lib.singleton {
+        host = [ "ny4.dev" ];
+        path = [ "/.well-known/matrix/server" ];
+      };
+      handle = lib.singleton {
+        handler = "static_response";
+        status_code = 200;
+        headers = {
+          Access-Control-Allow-Origin = [ "*" ];
+          Content-Type = [ "application/json" ];
+        };
+        body = builtins.toJSON {
+          "m.server" = "matrix.ny4.dev:443";
         };
       };
-
-      "cinny" = pkgs.cinny.override {
-        conf = {
-          defaultHomeserver = 0;
-          homeserverList = [ "ny4.dev" ];
+    }
+    {
+      match = lib.singleton {
+        host = [ "ny4.dev" ];
+        path = [ "/.well-known/matrix/client" ];
+      };
+      handle = lib.singleton {
+        handler = "static_response";
+        status_code = 200;
+        headers = {
+          Access-Control-Allow-Origin = [ "*" ];
+          Content-Type = [ "application/json" ];
+        };
+        body = builtins.toJSON {
+          "m.homeserver" = {
+            "base_url" = "https://matrix.ny4.dev";
+          };
         };
       };
-    };
-  };
+    }
+    {
+      match = lib.singleton {
+        host = [ "ny4.dev" ];
+        path = [ "/.well-known/webfinger" ];
+      };
+      handle = lib.singleton {
+        handler = "static_response";
+        status_code = 301;
+        headers = {
+          Access-Control-Allow-Origin = [ "*" ];
+          Location = [ "https://mastodon.ny4.dev{http.request.uri}" ];
+        };
+      };
+    }
+    {
+      match = lib.singleton {
+        host = [ "ny4.dev" ];
+      };
+      handle = lib.singleton {
+        handler = "static_response";
+        status_code = 302;
+        headers = {
+          Location = [ "https://blog.ny4.dev" ];
+        };
+      };
+    }
+    {
+      match = lib.singleton {
+        host = [ "element.ny4.dev" ];
+      };
+      handle = [
+        {
+          handler = "headers";
+          response.set = {
+            X-Frame-Options = [ "SAMEORIGIN" ];
+            X-Content-Type-Options = [ "nosniff" ];
+            X-XSS-Protection = [ "1; mode=block" ];
+            Content-Security-Policy = [ "frame-ancestors 'self'" ];
+          };
+        }
+        {
+          handler = "file_server";
+          root = pkgs.element-web.override {
+            conf.default_server_config."m.homeserver" = {
+              base_url = "https://matrix.ny4.dev";
+              server_name = "ny4.dev";
+            };
+          };
+        }
+      ];
+    }
+    {
+      match = lib.singleton {
+        host = [ "cinny.ny4.dev" ];
+      };
+      handle = lib.singleton {
+        handler = "subroute";
+        routes = [
+          {
+            match = [ { "path" = [ "/*/olm.wasm" ]; } ];
+            handle = lib.singleton {
+              handler = "rewrite";
+              uri = "/olm.wasm";
+            };
+          }
+          {
+            match = lib.singleton {
+              not = [
+                { path = [ "/index.html" ]; }
+                { path = [ "/public/*" ]; }
+                { path = [ "/assets/*" ]; }
+                { path = [ "/config.json" ]; }
+                { path = [ "/manifest.json" ]; }
+                { path = [ "/pdf.worker.min.js" ]; }
+                { path = [ "/olm.wasm" ]; }
+              ];
+              path = [ "/*" ];
+            };
+            handle = lib.singleton {
+              handler = "rewrite";
+              uri = "/index.html";
+            };
+          }
+          {
+            handle = lib.singleton {
+              handler = "file_server";
+              root = pkgs.cinny.override {
+                conf = {
+                  defaultHomeserver = 0;
+                  homeserverList = [ "ny4.dev" ];
+                };
+              };
+            };
+          }
+        ];
+      };
+    }
+  ];
 
   services.postgresql = {
     package = pkgs.postgresql_16;
diff --git a/hosts/tyo0/matrix-client.json b/hosts/tyo0/matrix-client.json
deleted file mode 100644
index b46b51a..0000000
--- a/hosts/tyo0/matrix-client.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "m.homeserver": {
-    "base_url": "https://matrix.ny4.dev"
-  }
-}
diff --git a/hosts/tyo0/matrix-server.json b/hosts/tyo0/matrix-server.json
deleted file mode 100644
index 938e84e..0000000
--- a/hosts/tyo0/matrix-server.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "m.server": "matrix.ny4.dev:443"
-}
diff --git a/hosts/tyo0/robots.txt b/hosts/tyo0/robots.txt
deleted file mode 100644
index fbbc48e..0000000
--- a/hosts/tyo0/robots.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-User-Agent: *
-Disallow: /harming/humans
-Disallow: /ignoring/human/orders
-Disallow: /harm/to/self
diff --git a/hosts/tyo0/services/forgejo.nix b/hosts/tyo0/services/forgejo.nix
index 1d134e2..4956069 100644
--- a/hosts/tyo0/services/forgejo.nix
+++ b/hosts/tyo0/services/forgejo.nix
@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ lib, pkgs, ... }:
 {
   services.forgejo = {
     enable = true;
@@ -26,4 +26,14 @@
       };
     };
   };
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "git.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "reverse_proxy";
+      upstreams = [ { dial = "unix//run/forgejo/forgejo.sock"; } ];
+    };
+  };
 }
diff --git a/hosts/tyo0/services/keycloak.nix b/hosts/tyo0/services/keycloak.nix
index 979b27c..dcad564 100644
--- a/hosts/tyo0/services/keycloak.nix
+++ b/hosts/tyo0/services/keycloak.nix
@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ lib, pkgs, ... }:
 {
   services.keycloak = {
     enable = true;
@@ -8,8 +8,17 @@
       http-host = "127.0.0.1";
       http-port = 8800;
       proxy = "edge";
-      # proxy-headers = "xforwarded"; # FIXME: Key material not provided to setup HTTPS.
     };
     database.passwordFile = toString (pkgs.writeText "password" "keycloak");
   };
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "id.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "reverse_proxy";
+      upstreams = [ { dial = "localhost:8800"; } ];
+    };
+  };
 }
diff --git a/hosts/tyo0/services/miniflux.nix b/hosts/tyo0/services/miniflux.nix
index 2482a17..0746b8f 100644
--- a/hosts/tyo0/services/miniflux.nix
+++ b/hosts/tyo0/services/miniflux.nix
@@ -1,4 +1,4 @@
-{ config, ... }:
+{ lib, config, ... }:
 {
   services.miniflux = {
     enable = true;
@@ -14,4 +14,14 @@
       OAUTH2_OIDC_DISCOVERY_ENDPOINT = "https://id.ny4.dev/realms/ny4";
     };
   };
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "rss.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "reverse_proxy";
+      upstreams = [ { dial = "localhost:9300"; } ];
+    };
+  };
 }
diff --git a/hosts/tyo0/services/ntfy.nix b/hosts/tyo0/services/ntfy.nix
index 25c6340..1cf1ee1 100644
--- a/hosts/tyo0/services/ntfy.nix
+++ b/hosts/tyo0/services/ntfy.nix
@@ -1,3 +1,4 @@
+{ lib, ... }:
 {
   services.ntfy-sh = {
     enable = true;
@@ -11,4 +12,14 @@
   };
 
   systemd.services.ntfy-sh.serviceConfig.RuntimeDirectory = [ "ntfy-sh" ];
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "ntfy.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "reverse_proxy";
+      upstreams = [ { dial = "unix//run/ntfy-sh/ntfy.sock"; } ];
+    };
+  };
 }
diff --git a/hosts/tyo0/services/prometheus.nix b/hosts/tyo0/services/prometheus.nix
index 3b8046a..181f4ee 100644
--- a/hosts/tyo0/services/prometheus.nix
+++ b/hosts/tyo0/services/prometheus.nix
@@ -139,4 +139,14 @@
       };
     };
   };
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "prom.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "reverse_proxy";
+      upstreams = [ { dial = "127.0.0.1:9090"; } ];
+    };
+  };
 }
diff --git a/hosts/tyo0/services/redlib.nix b/hosts/tyo0/services/redlib.nix
index caf0ea8..8093b3d 100644
--- a/hosts/tyo0/services/redlib.nix
+++ b/hosts/tyo0/services/redlib.nix
@@ -1,7 +1,18 @@
+{ lib, ... }:
 {
   services.redlib = {
     enable = true;
     address = "127.0.0.1";
     port = 9400;
   };
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "reddit.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "reverse_proxy";
+      upstreams = [ { dial = "localhost:9400"; } ];
+    };
+  };
 }
diff --git a/hosts/tyo0/services/vaultwarden.nix b/hosts/tyo0/services/vaultwarden.nix
index c735d17..0663ed5 100644
--- a/hosts/tyo0/services/vaultwarden.nix
+++ b/hosts/tyo0/services/vaultwarden.nix
@@ -1,4 +1,4 @@
-{ config, ... }:
+{ lib, config, ... }:
 {
   services.vaultwarden = {
     enable = true;
@@ -15,4 +15,14 @@
       ORG_CREATION_USERS = "none";
     };
   };
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "vault.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "reverse_proxy";
+      upstreams = [ { dial = "localhost:9500"; } ];
+    };
+  };
 }
diff --git a/hosts/tyo0/services/wastebin.nix b/hosts/tyo0/services/wastebin.nix
index e324d8c..fbef1ac 100644
--- a/hosts/tyo0/services/wastebin.nix
+++ b/hosts/tyo0/services/wastebin.nix
@@ -1,6 +1,17 @@
+{ lib, ... }:
 {
   services.wastebin = {
     enable = true;
     settings.WASTEBIN_ADDRESS_PORT = "127.0.0.1:8200";
   };
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ "pb.ny4.dev" ];
+    };
+    handle = lib.singleton {
+      handler = "reverse_proxy";
+      upstreams = [ { dial = "localhost:8200"; } ];
+    };
+  };
 }
diff --git a/nixos/profiles/prometheus/default.nix b/nixos/profiles/prometheus/default.nix
index fe41da6..0fe4b4b 100644
--- a/nixos/profiles/prometheus/default.nix
+++ b/nixos/profiles/prometheus/default.nix
@@ -1,3 +1,4 @@
+{ config, lib, ... }:
 {
   services.prometheus.exporters.node = {
     enable = true;
@@ -5,4 +6,24 @@
     port = 9091;
     enabledCollectors = [ "systemd" ];
   };
+
+  services.caddy.settings.apps.http.servers.srv0.routes = lib.singleton {
+    match = lib.singleton {
+      host = [ config.networking.fqdn ];
+      path = [ "/metrics" ];
+    };
+    handle = [
+      {
+        handler = "authentication";
+        providers.http_basic.accounts = lib.singleton {
+          username = "prometheus";
+          password = "$2a$14$2Phk4tobM04H4XiGegB3TuEXkyORCKMKW8TptYPTPXUWmZgtGBj/.";
+        };
+      }
+      {
+        handler = "reverse_proxy";
+        upstreams = lib.singleton { dial = "127.0.0.1:9091"; };
+      }
+    ];
+  };
 }
diff --git a/nixos/profiles/server/default.nix b/nixos/profiles/server/default.nix
index 621dfe1..057fea1 100644
--- a/nixos/profiles/server/default.nix
+++ b/nixos/profiles/server/default.nix
@@ -19,4 +19,6 @@
   ];
 
   time.timeZone = "UTC";
+
+  networking.domain = "ny4.dev";
 }