diff --git a/codegen/kernel_specialization/gen_kernel_specialization.py b/codegen/kernel_specialization/gen_kernel_specialization.py
deleted file mode 100644
index fe382e06c4..0000000000
--- a/codegen/kernel_specialization/gen_kernel_specialization.py
+++ /dev/null
@@ -1,73 +0,0 @@
-import string
-import argparse
-import pathlib
-
-if __name__ == "__main__":
-    parser = argparse.ArgumentParser()
-
-    parser.add_argument(
-        "template",
-        type=pathlib.Path,
-        help="the template path",
-    )
-
-    parser.add_argument(
-        "-o",
-        "--output",
-        type=pathlib.Path,
-        help="the output path to write to",
-        required=True,
-    )
-
-    parser.add_argument(
-        "--detector",
-        type=str,
-        help="the name of the detector",
-    )
-
-    parser.add_argument(
-        "--bfield",
-        type=str,
-        help="the name of the bfield",
-    )
-
-    parser.add_argument(
-        "--model",
-        type=str,
-        help="the name of the programming mode",
-        default="cpu",
-    )
-
-    args = parser.parse_args()
-
-    with open(args.template, "r") as f:
-        src = string.Template(f.read())
-
-    subs = {}
-
-    subs["SOURCE_DIR"] = args.template.parent
-
-    det = getattr(args, "detector", None)
-    if det is not None:
-        subs["DETECTOR_NAME"] = det
-
-    bfield = getattr(args, "bfield", None)
-    if bfield is not None:
-        # HACK: Perform some transformations to make the types line up...
-        # This could be resolved in the C++ file itself in the future.
-        bfield_name = bfield
-
-        if args.model != "cpu" and bfield != "const":
-            bfield_name = args.model + "::" + bfield_name
-
-        bfield_name += "_bfield_backend_t"
-
-        if bfield != "inhom_texture":
-            bfield_name += "<scalar>"
-
-        subs["BFIELD_NAME"] = bfield_name
-
-    result = src.substitute(subs)
-
-    with open(args.output, "w") as f:
-        f.write(result)
diff --git a/device/cuda/CMakeLists.txt b/device/cuda/CMakeLists.txt
index 1e4e123127..0a3d804fa3 100644
--- a/device/cuda/CMakeLists.txt
+++ b/device/cuda/CMakeLists.txt
@@ -111,115 +111,43 @@ traccc_add_library( traccc_cuda cuda TYPE SHARED
   "src/fitting/kernels/fit_prelude.cu"
 )
 
-set(TRACCC_CUDA_SUPPORTED_BFIELDS "const;inhom_global;inhom_texture")
-
-set(KERNEL_SPECIALIZATION_PY "${PROJECT_SOURCE_DIR}/codegen/kernel_specialization/gen_kernel_specialization.py")
-
-# Generate specializations of find_tracks
-foreach(DETECTOR_NAME ${TRACCC_SUPPORTED_DETECTORS})
-    set(GENERATED_SOURCE "${CMAKE_CURRENT_BINARY_DIR}/src/finding/kernels/specializations/find_tracks_${DETECTOR_NAME}.cu")
-    set(TEMPLATE_SOURCE "${CMAKE_CURRENT_SOURCE_DIR}/src/finding/kernels/specializations/find_tracks.cu.template")
-    add_custom_command(
-        OUTPUT "${GENERATED_SOURCE}"
-        COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_BINARY_DIR}/src/finding/kernels/specializations/"
-        COMMAND
-            Python::Interpreter
-            "${KERNEL_SPECIALIZATION_PY}"
-            "${TEMPLATE_SOURCE}"
-            -o "${GENERATED_SOURCE}"
-            --detector "${DETECTOR_NAME}"
-        DEPENDS "${KERNEL_SPECIALIZATION_PY}" "${TEMPLATE_SOURCE}"
-        COMMENT "Generating kernel specialization of `find_tracks` for ${DETECTOR_NAME}"
-    )
-    target_sources(traccc_cuda PRIVATE ${GENERATED_SOURCE})
-endforeach()
-
-# Generate specializations for apply_interaction
-foreach(DETECTOR_NAME ${TRACCC_SUPPORTED_DETECTORS})
-    set(GENERATED_SOURCE "${CMAKE_CURRENT_BINARY_DIR}/src/finding/kernels/specializations/apply_interaction_${DETECTOR_NAME}.cu")
-    set(TEMPLATE_SOURCE "${CMAKE_CURRENT_SOURCE_DIR}/src/finding/kernels/specializations/apply_interaction.cu.template")
-    add_custom_command(
-        OUTPUT "${GENERATED_SOURCE}"
-        COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_BINARY_DIR}/src/finding/kernels/specializations/"
-        COMMAND
-            Python::Interpreter
-            "${KERNEL_SPECIALIZATION_PY}"
-            "${TEMPLATE_SOURCE}"
-            -o "${GENERATED_SOURCE}"
-            --detector "${DETECTOR_NAME}"
-        DEPENDS "${KERNEL_SPECIALIZATION_PY}" "${TEMPLATE_SOURCE}"
-        COMMENT "Generating kernel specialization of `apply_interaction` for ${DETECTOR_NAME}"
-    )
-    target_sources(traccc_cuda PRIVATE ${GENERATED_SOURCE})
-endforeach()
-
-# Generate specializations for propagate_to_next_surface
-foreach(DETECTOR_NAME ${TRACCC_SUPPORTED_DETECTORS})
-    foreach(BFIELD_NAME ${TRACCC_CUDA_SUPPORTED_BFIELDS})
-        set(GENERATED_SOURCE "${CMAKE_CURRENT_BINARY_DIR}/src/finding/kernels/specializations/propagate_to_next_surface_${DETECTOR_NAME}_${BFIELD_NAME}.cu")
-        set(TEMPLATE_SOURCE "${CMAKE_CURRENT_SOURCE_DIR}/src/finding/kernels/specializations/propagate_to_next_surface.cu.template")
-        add_custom_command(
-            OUTPUT "${GENERATED_SOURCE}"
-            COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_BINARY_DIR}/src/finding/kernels/specializations/"
-            COMMAND
-                Python::Interpreter
-                "${KERNEL_SPECIALIZATION_PY}"
-                "${TEMPLATE_SOURCE}"
-                -o "${GENERATED_SOURCE}"
-                --detector "${DETECTOR_NAME}"
-                --bfield "${BFIELD_NAME}"
-                --model cuda
-            DEPENDS "${KERNEL_SPECIALIZATION_PY}" "${TEMPLATE_SOURCE}"
-            COMMENT "Generating kernel specialization of `propagate_to_next_surface` for ${DETECTOR_NAME} and ${BFIELD_NAME}"
-        )
-        target_sources(traccc_cuda PRIVATE ${GENERATED_SOURCE})
-    endforeach()
-endforeach()
-
-# Generate specializations for fit_forward
-foreach(DETECTOR_NAME ${TRACCC_SUPPORTED_DETECTORS})
-    foreach(BFIELD_NAME ${TRACCC_CUDA_SUPPORTED_BFIELDS})
-        set(GENERATED_SOURCE "${CMAKE_CURRENT_BINARY_DIR}/src/fitting/kernels/specializations/fit_forward_${DETECTOR_NAME}_${BFIELD_NAME}.cu")
-        set(TEMPLATE_SOURCE "${CMAKE_CURRENT_SOURCE_DIR}/src/fitting/kernels/specializations/fit_forward.cu.template")
-        add_custom_command(
-            OUTPUT "${GENERATED_SOURCE}"
-            COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_BINARY_DIR}/src/fitting/kernels/specializations/"
-            COMMAND
-                Python::Interpreter
-                "${KERNEL_SPECIALIZATION_PY}"
-                "${TEMPLATE_SOURCE}"
-                -o "${GENERATED_SOURCE}"
-                --detector "${DETECTOR_NAME}"
-                --bfield "${BFIELD_NAME}"
-                --model cuda
-            DEPENDS "${KERNEL_SPECIALIZATION_PY}" "${TEMPLATE_SOURCE}"
-            COMMENT "Generating kernel specialization of `fit_forward` for ${DETECTOR_NAME} and ${BFIELD_NAME}"
-        )
-        target_sources(traccc_cuda PRIVATE ${GENERATED_SOURCE})
-    endforeach()
-endforeach()
-
-# Generate specializations for fit_backward
+# Create a well formed postfix for the specialized filenames.
+function(traccc_make_cuda_fname_postfix FNAME)
+  set("${FNAME}" "")
+  if(NOT "${DETECTOR_NAME}" STREQUAL "")
+    set("${FNAME}" "${${FNAME}}.${DETECTOR_NAME}")
+  endif()
+  if(NOT "${BFIELD_NAME}" STREQUAL "")
+    set("${FNAME}" "${${FNAME}}.${BFIELD_NAME}")
+  endif()
+  string(REPLACE "<scalar>" ""  "${FNAME}" "${${FNAME}}")
+  set("${FNAME}" "${${FNAME}}" PARENT_SCOPE)
+endfunction()
+
+# Helper macro for adding a kernel specialization to the build of traccc::cuda.
+function(traccc_add_cuda_specialization TEMPLATE_FILE)
+  traccc_make_cuda_fname_postfix(FNAME_POSTFIX)
+  configure_file("${TEMPLATE_FILE}" "${TEMPLATE_FILE}${FNAME_POSTFIX}.cu")
+  target_sources(traccc_cuda PRIVATE
+    "${CMAKE_CURRENT_BINARY_DIR}/${TEMPLATE_FILE}${FNAME_POSTFIX}.cu")
+endfunction()
+
+# Generate specializations for the kernels.
 foreach(DETECTOR_NAME ${TRACCC_SUPPORTED_DETECTORS})
-    foreach(BFIELD_NAME ${TRACCC_CUDA_SUPPORTED_BFIELDS})
-        set(GENERATED_SOURCE "${CMAKE_CURRENT_BINARY_DIR}/src/fitting/kernels/specializations/fit_backward_${DETECTOR_NAME}_${BFIELD_NAME}.cu")
-        set(TEMPLATE_SOURCE "${CMAKE_CURRENT_SOURCE_DIR}/src/fitting/kernels/specializations/fit_backward.cu.template")
-        add_custom_command(
-            OUTPUT "${GENERATED_SOURCE}"
-            COMMAND ${CMAKE_COMMAND} -E make_directory "${CMAKE_CURRENT_BINARY_DIR}/src/fitting/kernels/specializations/"
-            COMMAND
-                Python::Interpreter
-                "${KERNEL_SPECIALIZATION_PY}"
-                "${TEMPLATE_SOURCE}"
-                -o "${GENERATED_SOURCE}"
-                --detector "${DETECTOR_NAME}"
-                --bfield "${BFIELD_NAME}"
-                --model cuda
-            DEPENDS "${KERNEL_SPECIALIZATION_PY}" "${TEMPLATE_SOURCE}"
-            COMMENT "Generating kernel specialization of `fit_backward` for ${DETECTOR_NAME} and ${BFIELD_NAME}"
-        )
-        target_sources(traccc_cuda PRIVATE ${GENERATED_SOURCE})
-    endforeach()
+  traccc_add_cuda_specialization(
+    "src/finding/kernels/specializations/find_tracks.cu.in")
+  traccc_add_cuda_specialization(
+    "src/finding/kernels/specializations/apply_interaction.cu.in")
+  foreach(BFIELD_NAME "const_bfield_backend_t<scalar>"
+                      "inhom_global_bfield_backend_t<scalar>"
+                      "inhom_texture_bfield_backend_t")
+    traccc_add_cuda_specialization(
+      "src/finding/kernels/specializations/propagate_to_next_surface.cu.in")
+    traccc_add_cuda_specialization(
+      "src/fitting/kernels/specializations/fit_forward.cu.in")
+    traccc_add_cuda_specialization(
+      "src/fitting/kernels/specializations/fit_backward.cu.in")
+  endforeach()
 endforeach()
 
 if(TRACCC_ENABLE_NVTX_PROFILING)
@@ -257,6 +185,8 @@ target_compile_options( traccc_cuda
 target_link_libraries( traccc_cuda
   PUBLIC traccc::core detray::core vecmem::core
   PRIVATE CUDA::cudart traccc::device_common vecmem::cuda covfie::cuda )
+target_include_directories( traccc_cuda
+  PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}" )
 
 # Set up Thrust specifically for the traccc::cuda library.
 thrust_create_target( traccc::cuda_thrust
diff --git a/device/cuda/src/finding/kernels/specializations/apply_interaction.cu.template b/device/cuda/src/finding/kernels/specializations/apply_interaction.cu.in
similarity index 88%
rename from device/cuda/src/finding/kernels/specializations/apply_interaction.cu.template
rename to device/cuda/src/finding/kernels/specializations/apply_interaction.cu.in
index 365179e1c9..026bea9321 100644
--- a/device/cuda/src/finding/kernels/specializations/apply_interaction.cu.template
+++ b/device/cuda/src/finding/kernels/specializations/apply_interaction.cu.in
@@ -6,7 +6,7 @@
  */
 
 // Local include(s).
-#include "${SOURCE_DIR}/apply_interaction_src.cuh"
+#include "src/finding/kernels/specializations/apply_interaction_src.cuh"
 
 // Project include(s).
 #include "traccc/geometry/detector.hpp"
diff --git a/device/cuda/src/finding/kernels/specializations/find_tracks.cu.template b/device/cuda/src/finding/kernels/specializations/find_tracks.cu.in
similarity index 89%
rename from device/cuda/src/finding/kernels/specializations/find_tracks.cu.template
rename to device/cuda/src/finding/kernels/specializations/find_tracks.cu.in
index 59863bfeee..9cdf839be6 100644
--- a/device/cuda/src/finding/kernels/specializations/find_tracks.cu.template
+++ b/device/cuda/src/finding/kernels/specializations/find_tracks.cu.in
@@ -6,7 +6,7 @@
  */
 
 // Local include(s).
-#include "${SOURCE_DIR}/find_tracks_src.cuh"
+#include "src/finding/kernels/specializations/find_tracks_src.cuh"
 
 // Project include(s).
 #include "traccc/geometry/detector.hpp"
diff --git a/device/cuda/src/finding/kernels/specializations/propagate_to_next_surface.cu.template b/device/cuda/src/finding/kernels/specializations/propagate_to_next_surface.cu.in
similarity index 87%
rename from device/cuda/src/finding/kernels/specializations/propagate_to_next_surface.cu.template
rename to device/cuda/src/finding/kernels/specializations/propagate_to_next_surface.cu.in
index 5d493e59b1..b43b336055 100644
--- a/device/cuda/src/finding/kernels/specializations/propagate_to_next_surface.cu.template
+++ b/device/cuda/src/finding/kernels/specializations/propagate_to_next_surface.cu.in
@@ -6,8 +6,8 @@
  */
 
 // Local include(s).
-#include "${SOURCE_DIR}/../../../utils/magnetic_field_types.hpp"
-#include "${SOURCE_DIR}/propagate_to_next_surface_src.cuh"
+#include "src/utils/magnetic_field_types.hpp"
+#include "src/finding/kernels/specializations/propagate_to_next_surface_src.cuh"
 
 // Project include(s).
 #include "traccc/finding/details/combinatorial_kalman_filter_types.hpp"
diff --git a/device/cuda/src/fitting/kernels/specializations/fit_backward.cu.template b/device/cuda/src/fitting/kernels/specializations/fit_backward.cu.in
similarity index 90%
rename from device/cuda/src/fitting/kernels/specializations/fit_backward.cu.template
rename to device/cuda/src/fitting/kernels/specializations/fit_backward.cu.in
index 3086e91caa..4131aedd75 100644
--- a/device/cuda/src/fitting/kernels/specializations/fit_backward.cu.template
+++ b/device/cuda/src/fitting/kernels/specializations/fit_backward.cu.in
@@ -6,8 +6,8 @@
  */
 
 // Local include(s).
-#include "${SOURCE_DIR}/../../../utils/magnetic_field_types.hpp"
-#include "${SOURCE_DIR}/fit_backward_src.cuh"
+#include "src/utils/magnetic_field_types.hpp"
+#include "src/fitting/kernels/specializations/fit_backward_src.cuh"
 
 // Project include(s).
 #include "traccc/bfield/magnetic_field_types.hpp"
diff --git a/device/cuda/src/fitting/kernels/specializations/fit_forward.cu.template b/device/cuda/src/fitting/kernels/specializations/fit_forward.cu.in
similarity index 89%
rename from device/cuda/src/fitting/kernels/specializations/fit_forward.cu.template
rename to device/cuda/src/fitting/kernels/specializations/fit_forward.cu.in
index 523f3e7848..bbfab56c26 100644
--- a/device/cuda/src/fitting/kernels/specializations/fit_forward.cu.template
+++ b/device/cuda/src/fitting/kernels/specializations/fit_forward.cu.in
@@ -6,8 +6,8 @@
  */
 
 // Local include(s).
-#include "${SOURCE_DIR}/../../../utils/magnetic_field_types.hpp"
-#include "${SOURCE_DIR}/fit_forward_src.cuh"
+#include "src/utils/magnetic_field_types.hpp"
+#include "src/fitting/kernels/specializations/fit_forward_src.cuh"
 
 // Project include(s).
 #include "traccc/bfield/magnetic_field_types.hpp"