diff --git a/flake.nix b/flake.nix
index 9540586..c49f1af 100644
--- a/flake.nix
+++ b/flake.nix
@@ -104,9 +104,7 @@
       ### nix develop
       devShells.default = pkgs.mkShell {
         packages = with pkgs; [
-          alejandra
           colmena
-          git
           sops
         ];
       };
@@ -135,7 +133,6 @@
 
       ### NixOS
       nixosConfigurations = {
-        "blacksteel" = mkNixOS "x86_64-linux" [./hosts/blacksteel];
         "dust" = mkNixOS "x86_64-linux" [./hosts/dust];
       };
 
@@ -157,8 +154,8 @@
           ./nixos/profiles/core
         ];
 
-        "lightsail-tokyo" = {
-          imports = [./hosts/lightsail-tokyo];
+        "tyo0" = {
+          imports = [./hosts/tyo0];
           deployment.targetHost = "tyo0.ny4.dev";
         };
 
diff --git a/hosts/blacksteel/default.nix b/hosts/blacksteel/default.nix
index 4d0e484..287ac77 100644
--- a/hosts/blacksteel/default.nix
+++ b/hosts/blacksteel/default.nix
@@ -74,7 +74,7 @@
     enable = true;
     configFile = pkgs.substituteAll {
       src = ./Caddyfile;
-      robots = toString ../lightsail-tokyo/robots.txt;
+      robots = toString ../tyo0/robots.txt;
       inherit (pkgs) mastodon;
     };
   };
diff --git a/hosts/lightsail-tokyo/Caddyfile b/hosts/tyo0/Caddyfile
similarity index 100%
rename from hosts/lightsail-tokyo/Caddyfile
rename to hosts/tyo0/Caddyfile
diff --git a/hosts/lightsail-tokyo/anti-feature.nix b/hosts/tyo0/anti-feature.nix
similarity index 100%
rename from hosts/lightsail-tokyo/anti-feature.nix
rename to hosts/tyo0/anti-feature.nix
diff --git a/hosts/lightsail-tokyo/default.nix b/hosts/tyo0/default.nix
similarity index 100%
rename from hosts/lightsail-tokyo/default.nix
rename to hosts/tyo0/default.nix
diff --git a/hosts/lightsail-tokyo/matrix-client.json b/hosts/tyo0/matrix-client.json
similarity index 100%
rename from hosts/lightsail-tokyo/matrix-client.json
rename to hosts/tyo0/matrix-client.json
diff --git a/hosts/lightsail-tokyo/matrix-server.json b/hosts/tyo0/matrix-server.json
similarity index 100%
rename from hosts/lightsail-tokyo/matrix-server.json
rename to hosts/tyo0/matrix-server.json
diff --git a/hosts/lightsail-tokyo/robots.txt b/hosts/tyo0/robots.txt
similarity index 100%
rename from hosts/lightsail-tokyo/robots.txt
rename to hosts/tyo0/robots.txt
diff --git a/hosts/lightsail-tokyo/secrets.yaml b/hosts/tyo0/secrets.yaml
similarity index 100%
rename from hosts/lightsail-tokyo/secrets.yaml
rename to hosts/tyo0/secrets.yaml
diff --git a/hosts/lightsail-tokyo/services/forgejo.nix b/hosts/tyo0/services/forgejo.nix
similarity index 100%
rename from hosts/lightsail-tokyo/services/forgejo.nix
rename to hosts/tyo0/services/forgejo.nix
diff --git a/hosts/lightsail-tokyo/services/hysteria.nix b/hosts/tyo0/services/hysteria.nix
similarity index 100%
rename from hosts/lightsail-tokyo/services/hysteria.nix
rename to hosts/tyo0/services/hysteria.nix
diff --git a/hosts/lightsail-tokyo/services/keycloak.nix b/hosts/tyo0/services/keycloak.nix
similarity index 100%
rename from hosts/lightsail-tokyo/services/keycloak.nix
rename to hosts/tyo0/services/keycloak.nix
diff --git a/hosts/lightsail-tokyo/services/miniflux.nix b/hosts/tyo0/services/miniflux.nix
similarity index 100%
rename from hosts/lightsail-tokyo/services/miniflux.nix
rename to hosts/tyo0/services/miniflux.nix
diff --git a/hosts/lightsail-tokyo/services/murmur.nix b/hosts/tyo0/services/murmur.nix
similarity index 100%
rename from hosts/lightsail-tokyo/services/murmur.nix
rename to hosts/tyo0/services/murmur.nix
diff --git a/hosts/lightsail-tokyo/services/ntfy.nix b/hosts/tyo0/services/ntfy.nix
similarity index 100%
rename from hosts/lightsail-tokyo/services/ntfy.nix
rename to hosts/tyo0/services/ntfy.nix
diff --git a/hosts/lightsail-tokyo/services/pixivfe.nix b/hosts/tyo0/services/pixivfe.nix
similarity index 100%
rename from hosts/lightsail-tokyo/services/pixivfe.nix
rename to hosts/tyo0/services/pixivfe.nix
diff --git a/hosts/lightsail-tokyo/services/searx.nix b/hosts/tyo0/services/searx.nix
similarity index 100%
rename from hosts/lightsail-tokyo/services/searx.nix
rename to hosts/tyo0/services/searx.nix
diff --git a/treefmt.nix b/treefmt.nix
index 8e64a8a..ebdb572 100644
--- a/treefmt.nix
+++ b/treefmt.nix
@@ -2,15 +2,15 @@
   projectRootFile = "flake.nix";
 
   ### nix
+  programs.alejandra.enable = true;
   programs.deadnix.enable = true;
   programs.statix.enable = true;
-  programs.alejandra.enable = true;
 
   ### misc
   programs.prettier.enable = true;
   settings.formatter.prettier.excludes = [
     "hosts/blacksteel/secrets.yaml"
-    "hosts/lightsail-tokyo/secrets.yaml"
+    "hosts/tyo0/secrets.yaml"
     "nixos/profiles/opt-in/mihomo/secrets.yaml"
     "nixos/profiles/opt-in/wireless/secrets.yaml"
     "secrets.yaml"