feat(calibre): move calibre into wrapper

flake.nix

@@ -16,10 +16,12 @@
       inherit (self) outputs;
 
       system = "x86_64-linux";
+      overlays = import ./overlays;
 
       pkgs = import nixpkgs {
         inherit system;
         config.allowUnfree = true;
+        overlays = [ overlays.calibre ];
       };
 
       lib = nixpkgs.lib;

home/default.nix

@@ -89,6 +89,7 @@ rec {
           protonmail-bridge-gui
           varia
           signal-desktop
+          calibre
 
           # Proprietary
           postman
@@ -115,18 +116,7 @@ rec {
           nixedit
         ];
       in
-      scripts
-      ++ pk
-      ++ [
-        (pkgs.calibre.overrideAttrs (old: {
-          postInstall = ''
-            wrapProgram $out/bin/calibre \
-                --set QT_QPA_PLATFORM xcb \
-                --set-default ACSM_LIBCRYPTO ${pkgs.openssl.out}/lib/libcrypto.so \
-                --set-default ACSM_LIBSSL ${pkgs.openssl.out}/lib/libssl.so
-          '';
-        }))
-      ];
+      scripts ++ pk;
 
     sessionVariables = {
       EDITOR = "nvim";

overlays/default.nix

@@ -0,0 +1,12 @@
+{
+  calibre = final: prev: {
+    calibre = prev.calibre.overrideAttrs (old: {
+      postInstall = ''
+        wrapProgram $out/bin/calibre \
+            --set QT_QPA_PLATFORM xcb \
+            --set-default ACSM_LIBCRYPTO ${prev.openssl.out}/lib/libcrypto.so \
+            --set-default ACSM_LIBSSL ${prev.openssl.out}/lib/libssl.so
+      '';
+    });
+  };
+}