diff --git a/bisect.sh b/bisect.sh
new file mode 100644
index 0000000..3968156
--- /dev/null
+++ b/bisect.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+set -x
+
+cd ~/dev/valentina
+rm -rf build
+mkdir build
+cd build
+qmake ../Valentina.pro -r CONFIG+=noDebugSymbols CONFIG+=no_ccache
+make
diff --git a/flake.nix b/flake.nix
index 0b30667..64b968b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -25,6 +25,18 @@
       # TODO: Legacy attribute, drop soon
       defaultPackage = self.packages.${system}.default;
 
+      devShells.default = pkgs.mkShell {
+        buildInputs = [
+          pkgs.qt5.full
+          pkgs.qtcreator
+          pkgs.libGL
+          pkgs.qt5.qtsvg
+          pkgs.poppler_utils
+          pkgs.qt5.qtxmlpatterns
+          pkgs.qt5.qt3d
+          pkgs.qt5.qmake
+        ];
+      };
 
     }));
 }
diff --git a/pkgs/seamly2d-2022-06-13.nix b/pkgs/seamly2d-2022-06-13.nix
index 3358309..520e516 100644
--- a/pkgs/seamly2d-2022-06-13.nix
+++ b/pkgs/seamly2d-2022-06-13.nix
@@ -31,16 +31,10 @@ mkDerivation rec {
     substituteInPlace common.pri \
       --replace '$$[QT_INSTALL_HEADERS]/QtXmlPatterns' '${getDev qtxmlpatterns}/include/QtXmlPatterns' \
       --replace '$$[QT_INSTALL_HEADERS]/QtSvg' '${getDev qtsvg}/include/QtSvg'
+
+    substituteInPlace src/app/translations.pri \
+      --replace '$$[QT_INSTALL_BINS]/$$LRELEASE' '${getDev qttools}/bin/lrelease'
   '';
-  #    --replace '$$[QT_INSTALL_HEADERS]/' '${getDev qtbase}/include/' \
-  #    --replace '$$[QT_INSTALL_HEADERS]' '${getDev qtbase}'
-  #  substituteInPlace src/app/translations.pri \
-  #    --replace '$$[QT_INSTALL_BINS]/$$LRELEASE' '${getDev qttools}/bin/lrelease'
-  #  substituteInPlace src/app/seamly2d/mainwindowsnogui.cpp \
-  #    --replace 'define PDFTOPS "pdftops"' 'define PDFTOPS "${getBin poppler_utils}/bin/pdftops"'
-  #  substituteInPlace src/app/valentina/dialogs/dialogsavelayout.h \
-  #    --replace 'define PDFTOPS "pdftops"' 'define PDFTOPS "${getBin poppler_utils}/bin/pdftops"'
-  #'';
 
   nativeBuildInputs = [
     pkg-config
@@ -60,6 +54,9 @@ mkDerivation rec {
   ];
 
   qmakeFlags = [
+    "-r"
+    "PREFIX=/"
+    "PREFIX_LIB=/usr/lib"
     "Seamly2D.pro"
     "CONFIG+=noDebugSymbols"
     "CONFIG+=no_ccache"
@@ -69,6 +66,11 @@ mkDerivation rec {
 
   installFlags = [ "INSTALL_ROOT=$(out)" ];
 
+  #postInstall = ''
+  #  mv $out/lib/Seamly2D/* $out/lib/
+  #  rmdir $out/lib/Seamly2D
+  #'';
+
   meta = {
     description = "An open source sewing pattern drafting software";
     homepage = "https://valentinaproject.bitbucket.io/";