diff --git a/babelizer/_post_hook.py b/babelizer/_post_hook.py
new file mode 100644
index 0000000..11f9d07
--- /dev/null
+++ b/babelizer/_post_hook.py
@@ -0,0 +1,158 @@
+from __future__ import annotations
+
+import errno
+import os
+import re
+from collections import defaultdict
+from collections.abc import Iterable
+from pathlib import Path
+from typing import Any
+
+from logoizer import logoize
+
+# PROJECT_DIRECTORY = Path.cwd().resolve()
+
+
+# def remove_file(filepath: Path) -> None:
+#     filepath.unlink(filepath)
+#     # (PROJECT_DIRECTORY / filepath).unlink(filepath)
+
+
+# def remove_folder(folderpath):
+#     shutil.rmtree(PROJECT_DIRECTORY / folderpath)
+
+
+# def make_folder(folderpath):
+#     try:
+#         # (PROJECT_DIRECTORY / folderpath).mkdir(parents=True, exist_ok=True)
+#         folderpath.mkdir(parents=True, exist_ok=True)
+#     except OSError:
+#         pass
+
+
+def clean_folder(folderpath: Path, keep: Iterable[str | Path] = ()) -> None:
+    keep = {str((folderpath / path).resolve()) for path in keep}
+    # if keep:
+    #     keep = set([str((folderpath / path).resolve()) for path in keep])
+    # else:
+    #     keep = set()
+
+    # folderpath = PROJECT_DIRECTORY / folderpath
+    for fname in folderpath.glob("*"):
+        if not fname.is_dir() and str(fname.resolve()) not in keep:
+            fname.unlink()
+
+    try:
+        folderpath.rmdir()
+    except OSError as err:
+        if err.errno != errno.ENOTEMPTY:
+            raise
+
+
+def split_file(filepath: Path, include_preamble: bool = False) -> set[str]:
+    filepath = Path(filepath)
+    SPLIT_START_REGEX = re.compile(r"\s*#\s*start:\s*(?P<fname>\S+)\s*")
+
+    files = defaultdict(list)
+    fname = "preamble"
+    with open(filepath) as fp:
+        for line in fp:
+            m = SPLIT_START_REGEX.match(line)
+            if m:
+                fname = m["fname"]
+            files[fname].append(line)
+
+    preamble = files.pop("preamble")
+    folderpath = filepath.parent
+    for name, contents in files.items():
+        with open(folderpath / name, "w") as fp:
+            if include_preamble:
+                fp.write("".join(preamble))
+            print("".join(contents).strip(), file=fp)
+            # fp.write("".join(contents).strip())
+
+    return set(files)
+
+
+def write_api_yaml(folderpath: Path, **kwds: str) -> Path:
+    # make_folder(folderpath)
+    os.makedirs(folderpath, exist_ok=True)
+
+    # api_yaml = PROJECT_DIRECTORY / folderpath / "api.yaml"
+    api_yaml = folderpath / "api.yaml"
+    contents = """\
+name: {package_name}
+language: {language}
+package: {package_name}
+class: {plugin_class}
+""".format(
+        **kwds
+    )
+    with open(api_yaml, "w") as fp:
+        fp.write(contents)
+
+    return api_yaml
+
+
+def remove_trailing_whitespace(path: str | Path) -> None:
+    with open(path) as fp:
+        lines = [line.rstrip() for line in fp]
+    with open(path, "w") as fp:
+        print(os.linesep.join(lines), file=fp)
+
+
+def run(context: dict[str, Any]) -> None:
+    PROJECT_DIRECTORY = Path.cwd().resolve()
+
+    package_name = context["cookiecutter"]["package_name"]
+    language = context["cookiecutter"]["language"]
+
+    LIB_DIRECTORY = PROJECT_DIRECTORY / Path(package_name, "lib")
+
+    keep = set()
+
+    static_dir = PROJECT_DIRECTORY / "docs" / "_static"
+    # make_folder(PROJECT_DIRECTORY / static_dir)
+    os.makedirs(PROJECT_DIRECTORY / static_dir, exist_ok=True)
+
+    logoize(package_name, static_dir / "logo-light.svg", light=True)
+    logoize(package_name, static_dir / "logo-dark.svg", light=False)
+
+    remove_trailing_whitespace(static_dir / "logo-dark.svg")
+    remove_trailing_whitespace(static_dir / "logo-light.svg")
+
+    if language == "c":
+        keep |= {"__init__.py", "bmi.c", "bmi.h"}
+        keep |= split_file(LIB_DIRECTORY / "_c.pyx", include_preamble=True)
+    elif language == "c++":
+        keep |= {"__init__.py", "bmi.hxx"}
+        keep |= split_file(LIB_DIRECTORY / "_cxx.pyx", include_preamble=True)
+    elif language == "fortran":
+        keep |= {
+            "__init__.py",
+            "bmi.f90",
+            "bmi_interoperability.f90",
+            "bmi_interoperability.h",
+        }
+        keep |= split_file(LIB_DIRECTORY / "_fortran.pyx", include_preamble=True)
+
+    clean_folder(LIB_DIRECTORY, keep=keep)
+
+    # if "Not open source" == "{{ cookiecutter.open_source_license }}":
+    #     remove_file("LICENSE")
+
+    if language == "python":
+        os.remove(PROJECT_DIRECTORY / "meson.build")
+
+    datadir = Path("meta")
+    package_datadir = Path(package_name) / "data"
+    if not package_datadir.exists():
+        package_datadir.symlink_to(".." / datadir, target_is_directory=True)
+
+    for babelized_class in context["cookiecutter"]["components"]:
+        write_api_yaml(
+            PROJECT_DIRECTORY / datadir / babelized_class,
+            language=language,
+            plugin_class=babelized_class,
+            package_name=package_name,
+        )