added hydraJobs

flake.nix

@@ -4,6 +4,15 @@
   inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
   inputs.flake-utils.url = "github:numtide/flake-utils";
    
+  nixConfig = {
+    extra-substituters = [
+      "https://cache.kyouma.net"
+    ];
+    extra-trusted-public-keys = [
+      "cache.kyouma.net:Frjwu4q1rnwE/MnSTmX9yx86GNA/z3p/oElGvucLiZg="
+    ];
+  };
+
   outputs = { self, nixpkgs, flake-utils }: {
     overlays.default = final: prev: rec {
       vid = final.stdenv.mkDerivation {
@@ -134,6 +143,9 @@
         };
       }
     ;
+    hydraJobs = {
+      inherit (self) packages;
+    };
   } // flake-utils.lib.eachDefaultSystem (system: let
     pkgs = import nixpkgs {
       inherit system;