diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..4de4151
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1,2 @@
+recursive-include custominstall/bin/*
+include custominstall/title.db.gz
diff --git a/custominstall/__main__.py b/custominstall/__main__.py
index 65a4daa..5a618f9 100644
--- a/custominstall/__main__.py
+++ b/custominstall/__main__.py
@@ -48,6 +48,12 @@ if is_windows:
 else:
     from os import statvfs
 
+script_dir: str
+if frozen:
+    script_dir = dirname(executable)
+else:
+    script_dir = dirname(__file__)
+
 # used to run the save3ds_fuse binary next to the script
 if 'CUSTOM_INSTALL_SAVE3DS_PATH' in environ:
     save3ds_fuse_path = environ['CUSTOM_INSTALL_SAVE3DS_PATH']
@@ -56,12 +62,9 @@ else:
     if is_windows:
         save3ds_fuse_name += '.exe'
     frozen = getattr(sys, 'frozen', False)
-    script_dir: str
     if frozen:
-        script_dir = dirname(executable)
         save3ds_fuse_path = join(script_dir, 'bin', save3ds_fuse_name)
     else:
-        script_dir = dirname(__file__)
         save3ds_fuse_path = join(script_dir, 'bin', platform, save3ds_fuse_name)
 
     if not isfile(save3ds_fuse_path):
diff --git a/bin/Cargo.lock b/custominstall/bin/Cargo.lock
similarity index 100%
rename from bin/Cargo.lock
rename to custominstall/bin/Cargo.lock
diff --git a/bin/README b/custominstall/bin/README
similarity index 100%
rename from bin/README
rename to custominstall/bin/README
diff --git a/bin/darwin/save3ds_fuse b/custominstall/bin/darwin/save3ds_fuse
similarity index 100%
rename from bin/darwin/save3ds_fuse
rename to custominstall/bin/darwin/save3ds_fuse
diff --git a/bin/linux/put_save3ds_fuse_here b/custominstall/bin/linux/put_save3ds_fuse_here
similarity index 100%
rename from bin/linux/put_save3ds_fuse_here
rename to custominstall/bin/linux/put_save3ds_fuse_here
diff --git a/bin/win32/save3ds_fuse.exe b/custominstall/bin/win32/save3ds_fuse.exe
similarity index 100%
rename from bin/win32/save3ds_fuse.exe
rename to custominstall/bin/win32/save3ds_fuse.exe
diff --git a/title.db.gz b/custominstall/title.db.gz
similarity index 100%
rename from title.db.gz
rename to custominstall/title.db.gz
diff --git a/package.nix b/package.nix
index 5cabbc5..7ea53b1 100644
--- a/package.nix
+++ b/package.nix
@@ -1,6 +1,7 @@
 {
   lib,
   pkgs,
+  python,
   callPackage,
   buildPythonApplication,
   fetchPypi,
@@ -58,8 +59,9 @@ buildPythonApplication rec {
 
   makeWrapperArgs = [ "--set CUSTOM_INSTALL_SAVE3DS_PATH ${save3ds_no_fuse}/bin/save3ds_fuse" ];
 
-  preFixup = lib.optionalString (!withGUI) ''
-    rm $out/bin/custominstall-gui
+  preFixup = ''
+    rm -r $out/lib/${python.libPrefix}/site-packages/custominstall/bin
+    ${lib.optionalString (!withGUI) "rm $out/bin/custominstall-gui"}
   '';
 
   meta = with lib; {
diff --git a/pyproject.toml b/pyproject.toml
index a468b99..d1cc217 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,3 +42,7 @@ version = {attr = "custominstall.__version__"}
 
 [tool.setuptools.packages]
 find = {namespaces = false}
+
+# is it even possible to make these OS-specific with pyproject.toml?
+[tool.setuptools.package-data]
+custominstall = ["bin/darwin/save3ds_fuse", "bin/win32/save3ds_fuse.exe"]