--- setup.py~	2024-01-18 14:25:11.000000000 +0300
+++ setup.py	2024-04-06 11:34:23.105681317 +0300
@@ -72,21 +72,6 @@
 
 cmdclass["build_ext"] = ExecutableBuildExt
 
-afdko_root_dir = os.path.join("external", "afdko")
-afdko_output_dir = os.path.join(afdko_root_dir, "build", "bin")
-build_release_cmd = f"{sys.executable} setup.py build --build-scripts build/bin"
-
-tx = Executable(
-    "cffsubr.tx",
-    build_cmd=build_release_cmd,
-    cwd=afdko_root_dir,
-    output_dir=afdko_output_dir,
-    # we don't care about the precise afdko version, but we need *some* version
-    # otherwise building a wheel from a cffsubr sdist tarball fails because the
-    # afdko submodule in the unzipped sdist isn't recognized as a git repo
-    env={"SETUPTOOLS_SCM_PRETEND_VERSION_FOR_AFDKO": "0.0.0"},
-)
-
 with open("README.md", "r", encoding="utf-8") as readme:
     long_description = readme.read()
 
@@ -104,7 +89,6 @@
     package_dir={"": "src"},
     packages=find_packages("src"),
     entry_points={"console_scripts": ["cffsubr = cffsubr.__main__:main"]},
-    ext_modules=[tx],
     zip_safe=False,
     cmdclass=cmdclass,
     install_requires=[
--- pyproject.toml~	2024-01-18 14:25:11.000000000 +0300
+++ pyproject.toml	2024-04-06 11:39:27.212681262 +0300
@@ -3,8 +3,5 @@
     "setuptools",
     "setuptools_scm",
 ]
-# https://setuptools.pypa.io/en/latest/build_meta.html#dynamic-build-dependencies-and-other-build-meta-tweaks
-build-backend = "backend"
-backend-path = ["_custom_build"]
 [tool.setuptools_scm]
 write_to = "src/cffsubr/_version.py"
--- src/cffsubr/__init__.py~	2024-01-18 14:25:11.000000000 +0300
+++ src/cffsubr/__init__.py	2024-04-06 11:59:38.500072332 +0300
@@ -57,7 +57,7 @@
 
 
 def _run_embedded_tx(*args, **kwargs):
-    """Run the embedded tx executable with the list of positional arguments.
+    """Run the (not) embedded tx executable with the list of positional arguments.
 
     All keyword arguments are forwarded to subprocess.run function.
 
@@ -65,8 +65,7 @@
         subprocess.CompletedProcess object with the following attributes:
         args, returncode, stdout, stderr.
     """
-    with path(__name__, TX_EXE) as tx_cli:
-        return subprocess.run([str(tx_cli)] + list(args), **kwargs)
+    return subprocess.run([TX_EXE] + list(args), **kwargs)
 
 
 def _tx_subroutinize(data: bytes, output_format: str = CFFTableTag.CFF) -> bytes: