Fix pathing and artifact collection.

hatch.toml

@@ -2,20 +2,26 @@
 [envs.hatch-build]
 dependencies = ["cython"]
 
+# Wheel build configuration
+[build.targets.wheel]
+packages = ["bindings/python/rgbmatrix"]
+exclude = [
+    "*.cpp",
+    "*.pyd",
+    "*.pyx"
+    ]
+artifacts = ["*.so"]
+
 # External hook script which invokes the makefile to build C library.
 [build.targets.wheel.hooks.custom]
 dependencies = ["cython"]
 path = "build-rpi-rgb-led-matrix.py"
 
-# cython build for the python bindings.
-[build.targets.wheel]
-packages = ["bindings/python/"]
-
 [build.targets.wheel.hooks.cython]
 dependencies = ["hatch-cython"]
 
 [build.targets.wheel.hooks.cython.options]
-src = "src/bindings/python"
+src = "src/bindings/python/rgbmatrix"
 includes = ["../../include"]
 libraries = "rgbmatrix"
 library_dirs = ["../../lib"]