diff --git a/config/hosts/seras/configuration.nix b/config/hosts/seras/configuration.nix
index 9da6d2c..74cf223 100644
--- a/config/hosts/seras/configuration.nix
+++ b/config/hosts/seras/configuration.nix
@@ -7,6 +7,8 @@
   ];
   boot.binfmt.emulatedSystems = ["aarch64-linux"];
 
+  deployment.targetUser = lib.mkForce "emily";
+
   networking = {
     hostName = "seras";
     nftables.enable = lib.mkForce false;
diff --git a/config/services/nyastodon.nix b/config/services/nyastodon.nix
index effc4e3..d998e44 100644
--- a/config/services/nyastodon.nix
+++ b/config/services/nyastodon.nix
@@ -1,12 +1,6 @@
 { config, lib, pkgs, ... }: {
-  nixpkgs.overlays = [
-    (final: prev: {
-      nyastodon = final.callPackage ../../pkgs/nyastodon/default.nix {  };
-    })
-  ];
   services.mastodon = {
     enable = true;
-    enableUnixSocket = false;
     package = pkgs.nyastodon;
     localDomain = config.networking.fqdn; 
     configureNginx = true;
diff --git a/flake.nix b/flake.nix
index 1b61b9e..44dbd0f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -50,9 +50,16 @@
 
   outputs = { self, nixpkgs, flake-utils, ... }@inputs: {
     colmena = let
-      hosts = builtins.attrNames (nixpkgs.lib.filterAttrs (name: type: type == "directory") (builtins.readDir ./config/hosts));
+      hosts = builtins.filter (name: name != "base") (
+        builtins.attrNames (nixpkgs.lib.filterAttrs (name: type: type == "directory") (
+          builtins.readDir ./config/hosts)));
       hostCfg = hostname: {
-        imports = [ (./config/hosts/${hostname}/configuration.nix) ];
+        imports = [
+          (./config/hosts/${hostname}/configuration.nix)
+          ({ ... }: {
+            nixpkgs.overlays = [ self.overlays.kyouma ];
+          })
+        ];
       };
     in {
       meta = {
@@ -84,6 +91,10 @@
       };
     };
     images.lain = self.nixosConfigurations.lain.config.system.build.sdImage;
+    overlays = {
+      kyouma = import ./pkgs/overlay.nix;
+      default = self.overlays.kyouma;
+    };
   } // flake-utils.lib.eachDefaultSystem (system: let
     pkgs = nixpkgs.legacyPackages.${system};
   in {
diff --git a/pkgs/overlay.nix b/pkgs/overlay.nix
new file mode 100644
index 0000000..64b9470
--- /dev/null
+++ b/pkgs/overlay.nix
@@ -0,0 +1,3 @@
+final: prev: {
+  nyastodon = final.callPackage ./nyastodon/default.nix {  };
+}