diff --git a/config/common/default.nix b/config/common/default.nix
index 9e95690..d5ad162 100644
--- a/config/common/default.nix
+++ b/config/common/default.nix
@@ -28,12 +28,13 @@ with lib; {
     fish.enable = true;
   };
 
-  deployment = { 
-    tags = [ "all" ];
-    targetHost = mkDefault config.networking.fqdn;
-    targetPort = mkDefault 22;
-    targetUser = mkDefault null;
-  };
+  kyouma.tags = [ "all" ];
+#  deployment = { 
+#    tags = [ "all" ];
+#    targetHost = mkDefault config.networking.fqdn;
+#    targetPort = mkDefault 22;
+#    targetUser = mkDefault null;
+#  };
 
   security.dhparams.defaultBitSize = 4096;
 
diff --git a/config/hosts/base/configuration.nix b/config/hosts/_minimal/configuration.nix
similarity index 100%
rename from config/hosts/base/configuration.nix
rename to config/hosts/_minimal/configuration.nix
diff --git a/flake.nix b/flake.nix
index 44dbd0f..76d1ecd 100644
--- a/flake.nix
+++ b/flake.nix
@@ -48,41 +48,32 @@
     builders = "ssh://build@seras.kyouma.net x86_64-linux,aarch64-linux - 40 5 nixos-test,benchmark,big-parallel,kvm";
   };
 
-  outputs = { self, nixpkgs, flake-utils, ... }@inputs: {
-    colmena = let
-      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)
-          ({ ... }: {
-            nixpkgs.overlays = [ self.overlays.kyouma ];
-          })
-        ];
-      };
-    in {
+  outputs = { self, nixpkgs, flake-utils, ... }@inputs: let
+    shinyflakes = import ./lib/shinyflakes inputs;
+  in {
+    hosts = shinyflakes.mapHosts {
+      lain = { system = "aarch64-linux"; };
+    };
+
+    colmena = shinyflakes.mapColmenaCfg {
       meta = {
         allowApplyAll = false;
         machinesFile = ./config/files/builders;
         nixpkgs = nixpkgs.legacyPackages.x86_64-linux;
-        nodeNixpkgs = {
-          lain = nixpkgs.legacyPackages.aarch64-linux;
-        };
         specialArgs = { inherit inputs; };
       };
-    } // nixpkgs.lib.attrsets.genAttrs hosts (hostCfg);
+    };
 
-    nixosConfigurations = {
-      ryuuko = nixpkgs.lib.nixosSystem {
+    nixosConfigurations = shinyflakes.mapNixosCfg {
+      ryuuko-minimal = nixpkgs.lib.nixosSystem {
         system = "x86_64-linux";
         specialArgs = { inherit inputs; };
         modules = [
-          ./config/hosts/base/configuration.nix
+          ./config/hosts/_minimal/configuration.nix
           ./config/hosts/ryuuko/disko.nix
         ];
       };
-      lain = nixpkgs.lib.nixosSystem {
+      lain-minimal = nixpkgs.lib.nixosSystem {
         system = "aarch64-linux";
         specialArgs = { inherit inputs; };
         modules = [
@@ -90,7 +81,8 @@
         ];
       };
     };
-    images.lain = self.nixosConfigurations.lain.config.system.build.sdImage;
+    images.lain = self.nixosConfigurations.lain-minimal.config.system.build.sdImage;
+
     overlays = {
       kyouma = import ./pkgs/overlay.nix;
       default = self.overlays.kyouma;
diff --git a/lib/shinyflakes/default.nix b/lib/shinyflakes/default.nix
new file mode 100644
index 0000000..5b86dda
--- /dev/null
+++ b/lib/shinyflakes/default.nix
@@ -0,0 +1,44 @@
+{ self, nixpkgs, ... }@inputs: let
+  readHostDir = builtins.filter (name: name != "_minimal") (
+    builtins.attrNames (nixpkgs.lib.filterAttrs (name: type: type == "directory") (
+      builtins.readDir ../../config/hosts)));
+
+  filterMinimal = attr: nixpkgs.lib.filterAttrs (name: v: !(nixpkgs.lib.hasSuffix "-minimal" name)) attr;
+
+  genColmenaCfg = name: host: {
+    deployment = {
+      allowLocalDeployment = builtins.any (hostName: hostName == name) [ "ryuuko" ];
+      targetHost = nixpkgs.lib.findFirst (el: el != null) host.config.networking.fqdn [ host.config.kyouma.deployment.targetHost ];
+      targetPort = 22;
+      # change back to null after switching ryuuko to nixos
+      targetUser = "emily";
+      tags = host.config.kyouma.deployment.tags;
+    };
+    imports = host._module.args.modules;
+    nixpkgs.system = host.config.nixpkgs.system;
+  };
+
+  genNixosCfg = {
+    hostname,
+    system ? "x86_64-linux"
+  }:
+    nixpkgs.lib.nixosSystem {
+    system = system;
+    specialArgs = { inherit inputs; };
+    modules = [
+      ../../config/hosts/${hostname}/configuration.nix
+      ({ ... }: {
+        nixpkgs.overlays = [ self.overlays.kyouma ];
+      })
+    ];
+  };
+in {
+  mapHosts = hostCfg: nixpkgs.lib.recursiveUpdate (
+    nixpkgs.lib.genAttrs readHostDir (host: { hostname = host; })) hostCfg;
+
+  mapColmenaCfg = extraColmenaCfg: nixpkgs.lib.recursiveUpdate (builtins.mapAttrs (genColmenaCfg) (
+      filterMinimal self.nixosConfigurations)) extraColmenaCfg;
+
+  mapNixosCfg = extraNixosCfg: nixpkgs.lib.recursiveUpdate (builtins.mapAttrs (name: value:
+      genNixosCfg value) self.hosts) extraNixosCfg;
+}
diff --git a/modules/default.nix b/modules/default.nix
index 2771d99..14d4e70 100644
--- a/modules/default.nix
+++ b/modules/default.nix
@@ -1,6 +1,7 @@
 { ... }: {
   imports = [
-    ./vhost
     ./machine-type
+    ./deployment
+    ./vhost
   ];
 }
diff --git a/modules/deployment/default.nix b/modules/deployment/default.nix
new file mode 100644
index 0000000..eef4b82
--- /dev/null
+++ b/modules/deployment/default.nix
@@ -0,0 +1,14 @@
+{ lib, ... }: with lib; {
+  options.kyouma.deployment = {
+    tags = mkOption {
+      type = types.listOf types.str;
+      default = [];
+      description = "colmena deployment tags";
+    };
+    targetHost = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+      description = "colmena target host override";
+    };
+  };
+}