diff --git a/libraries.nix b/libraries.nix
index a619cd4..bfd2c28 100644
--- a/libraries.nix
+++ b/libraries.nix
@@ -11,8 +11,12 @@ let
       inherit version;
 
       installPhase = ''
+        runHook preInstall
+
         mkdir -p "$out/libraries/$pname"
         cp -R * "$out/libraries/$pname/"
+
+        runHook postInstall
       '';
       nativeBuildInputs = [ pkgs.unzip ];
       src = fetchurl ({
diff --git a/packages.nix b/packages.nix
index b284a96..4bc3a71 100644
--- a/packages.nix
+++ b/packages.nix
@@ -46,12 +46,16 @@ let
         toolsDependencies = map ({packager, name, version}: arduinoPackages.tools.${packager}.${name}.${version}) toolsDependencies;
         passAsFile = [ "toolsDependencies" ];
         installPhase = ''
+          runHook preInstall
+
           mkdir -p "$out/$dirName"
           cp -R * "$out/$dirName/"
 
           for i in $(cat $toolsDependenciesPath); do
             ${lndir}/bin/lndir -silent $i $out
           done
+
+          runHook postInstall
         '';
         nativeBuildInputs = [ pkgs.unzip ];
         src = fetchurl ({