nix: wrapper to launch ezidam with env variables

flake.nix

@@ -99,17 +99,10 @@
           ezidamAssetStatic
         ];
 
-        ezidam = pkgs.stdenv.mkDerivation {
-          inherit ezidamBinary ezidamAssets;
-          name = metadata.pname;
-          phases = [ "unpackPhase" "installPhase" ];
-          dontUnpack = true;
-          installPhase = ''
-            mkdir -p $out
-            cp -rv $ezidamBinary $out
-            cp -rv $ezidamAssets $out
-          '';
-        };
+        # How to launch binary
+        ezidam = pkgs.writeShellScriptBin "ezidam" ''
+        EZIDAM_TEMPLATE_DIR=${ezidamAssetTemplate} EZIDAM_STATIC_DIR=${ezidamAssetStatic} ${ezidamBinary}/bin/ezidam
+        '';
 
         # Docker image
         dockerImage = pkgs.dockerTools.buildLayeredImage {
@@ -142,7 +135,7 @@
       {
         apps.default = {
           type = "app";
-          program = "${ezidamBinary}/bin/ezidam";
+          program = "${ezidam}/bin/ezidam";
         };
 
         packages = {