diff --git a/.github/workflows/ci-blenderbim-choco.yml b/.github/workflows/ci-blenderbim-choco.yml
index 24fb9f1005..ed95040ce2 100644
--- a/.github/workflows/ci-blenderbim-choco.yml
+++ b/.github/workflows/ci-blenderbim-choco.yml
@@ -33,7 +33,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        pyver: [py311]
+        pyver: [py312]
         config:
           - {
             name: "Windows Build",
@@ -43,59 +43,12 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2 # https://github.com/actions/setup-python
         with:
-          python-version: '3.11.9' # Version range or exact version of a Python version to use, using SemVer's version range syntax
+          python-version: '3.12.4' # Version range or exact version of a Python version to use, using SemVer's version range syntax
           architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
       - run: echo ${{ env.DATE }}
 
-      - name: Check in release tags if we should do a choco release
-        id: do_choco
+      - name: Check in release tags if we should do a choco release and perform release if needed
+        id: do_choco_release
         run: |
           cd /home/runner/work/IfcOpenShell/IfcOpenShell/choco/blenderbim/ &&
-          echo "check GITHUB_ENV is present: $GITHUB_ENV" &&
-          echo "::set-output name=choco_release::$(python3 check_release_needed.py)" &&
-          echo $choco_release      >> $GITHUB_STEP_SUMMARY &&
-          echo $target_release_tag >> $GITHUB_STEP_SUMMARY
-
-      - name: Fill chocolatey scripts on win with latest blender python
-        if: ${{steps.do_choco.outputs.choco_release}} == 'do_choco_release'
-        run: |
-          cd /home/runner/work/IfcOpenShell/IfcOpenShell/choco/blenderbim/ &&
-          echo "check GITHUB_ENV is present: $GITHUB_ENV" &&
-          yesterday_non_iso="$(date  --date='yesterday' +'%y%m%d' | tr -d '\n')" &&
-          python3 check_release_needed.py &&
-          echo "choco_release     : $choco_release" &&
-          echo "target_release_tag: $target_release_tag" &&
-          target_os=${{ matrix.config.short_name }} &&
-          latest_blender_python_version_maj_min=$(python3 check_repo_infos.py --latest_blender_python_version_maj_min?) &&
-          echo "latest_blender_python_version_maj_min?: $latest_blender_python_version_maj_min" &&
-          pyver=$(python3 /home/runner/work/IfcOpenShell/IfcOpenShell/choco/blenderbim/check_repo_infos.py --pyver?) &&
-          export latest_blender_version_maj_min=$(python3 check_repo_infos.py --latest_blender_release_maj_min?) &&
-          export latest_blender_version_maj_min_pat=$(python3 check_repo_infos.py --latest_blender_release_maj_min_pat?) &&
-          echo   latest_blender_version_maj_min_pat?: $latest_blender_version_maj_min_pat &&
-          export blenderbim_build_version="${{ env.major }}.${{ env.minor }}.$yesterday_non_iso" &&
-          export url_blenderbim_py3x_win_zip="https://github.com/IfcOpenShell/IfcOpenShell/releases/download/$target_release_tag/$target_release_tag-$pyver-$target_os.zip" &&
-          wget $url_blenderbim_py3x_win_zip --no-verbose &&
-          export sha256sum_blenderbim_py3x_win_zip=$( sha256sum $target_release_tag-$pyver-$target_os.zip  --tag | cut -d ' ' -f 4  | tr -d '\n') &&
-          echo   sha256sum_blenderbim_py3x_win_zip: $sha256sum_blenderbim_py3x_win_zip &&
-          python3 fill_dynamic_parameters.py &&
-          echo __build choco with mono &&
-          mkdir /tmp/choco/ &&
-          cd /tmp/choco/ &&
-          wget "https://github.com/chocolatey/choco/archive/refs/tags/$choco_version.tar.gz" --quiet &&
-          tar -xzf "$choco_version.tar.gz" &&
-          cd choco-$choco_version &&
-          chmod +x build.sh zip.sh &&
-          ./build.sh &&
-          cp -r build_output/chocolatey /opt/chocolatey &&
-          cd /home/runner/work/IfcOpenShell/IfcOpenShell/choco/blenderbim/ &&
-          echo __choco pack &&
-          mono /opt/chocolatey/choco.exe pack --allow-unofficial &&
-          echo __choco set apiKey &&
-          mono /opt/chocolatey/choco.exe setapikey --key="$CHOCO_TOKEN" --source="https://push.chocolatey.org/" --allow-unofficial # &&
-          echo __choco push &&
-          mono /opt/chocolatey/choco.exe push --source="https://push.chocolatey.org/" --key="$CHOCO_TOKEN" --allow-unofficial --verbose
-
-      - name: Inform user about not packaging
-        if: ${{steps.do_choco.outputs.choco_release}} != 'do_choco_release'
-        run: |
-          echo "no releases found today ${{ env.DATE }}, therefore choco packaging is skipped."
+          python3 choco_release.py
diff --git a/choco/blenderbim/choco_release.py b/choco/blenderbim/choco_release.py
new file mode 100644
index 0000000000..8f9cd59b63
--- /dev/null
+++ b/choco/blenderbim/choco_release.py
@@ -0,0 +1,212 @@
+# commands to run and test it on a generic ubuntu 2404 oci container:
+"""
+apt update && apt install git wget curl ptpython mono-devel micro
+mkdir -p /home/runner/work/IfcOpenShell && cd /home/runner/work/IfcOpenShell
+git clone https://github.com/IfcOpenShell/IfcOpenShell
+cd /home/runner/work/IfcOpenShell/IfcOpenShell/choco/blenderbim/
+export CHOCO_TOKEN="secret_choco_release_token"
+python3 choco_release.py
+"""
+import datetime
+import hashlib
+import os
+import pathlib
+import re
+from urllib import request
+
+
+def get_repo_tag_names():
+    git_return = os.popen("git tag -l").read()
+    return [tag_name for tag_name in git_return.split("\n") if tag_name]
+
+
+def set_github_env_var(key: str, value: str):
+    env_file_path = os.getenv('GITHUB_ENV')
+    with open(env_file_path, "a") as env_file:
+        _ = env_file.write(f"{key}={value}" + "\n")
+
+
+def request_repo_info(url: str):
+    req  = request.Request(url)
+    resp = request.urlopen(req)
+    if not resp.status == 200:
+        print(f"[ERROR] could not contact server: {url}")
+        quit(1)
+    return resp
+
+
+def get_choco_package_info() -> str:
+    resp = request_repo_info(URL_CHOCO_PACKAGE)
+    html_txt = str(resp.read())
+    return html_txt
+
+
+def get_latest_blender_version() -> list:
+    html_txt = get_choco_package_info()
+    return re.findall(RE_BLENDER_VERSION_MIN_MAJ_PAT, html_txt)
+
+
+def get_file_sha256_hash(file_path):
+    BLOCKSIZE = 65536
+    hasher = hashlib.sha256()
+
+    with open(file_path, "rb") as input_file:
+        buffer = input_file.read(BLOCKSIZE)
+        while len(buffer) > 0:
+            hasher.update(buffer)
+            buffer = input_file.read(BLOCKSIZE)
+
+    return hasher.hexdigest()
+
+
+def quit_with_error_message(message: str):
+    print(f"ERROR: {message}")
+    quit(0)
+
+
+start = datetime.datetime.now()
+
+URL_CHOCO_PACKAGE  = "https://community.chocolatey.org/packages/blender"
+URL_BLENDER_CMAKE  = "https://raw.githubusercontent.com/blender/blender/{}/build_files/cmake/Modules/FindPythonLibsUnix.cmake"
+URL_IFCOS_RELEASES = "https://github.com/IfcOpenShell/IfcOpenShell/releases/download/"
+RE_BLENDER_VERSION_MIN_MAJ        = r"Latest Version.+<span>Blender (\d+\.\d+)\..+</span>"
+RE_BLENDER_VERSION_MIN_MAJ_PAT    = r"Latest Version.+<span>Blender (\d+\.\d+\.\d+)</span>"
+RE_BLENDER_PYTHON_VERSION_MAJ_MIN = r"\(_PYTHON_VERSION_SUPPORTED (\d+\.\d+)\)"
+
+print("_____ check choco release needed?")
+
+blenderbim_date_yesterday = (datetime.datetime.now() - datetime.timedelta(days=1)).strftime("%y%m%d")
+should_release = False
+target_release_tag = ""
+target_os = "win"
+
+for tag_name in get_repo_tag_names():
+    if blenderbim_date_yesterday in tag_name:
+        should_release = True
+        target_release_tag = tag_name
+        print(f"found {tag_name=} - {should_release=}")
+        break
+
+if not should_release:
+    print(f"INFO: no blenderbim release tags found for {blenderbim_date_yesterday} -> no choco release today.")
+    quit(0)
+print(f"{should_release=}")
+
+if not os.environ.get("CHOCO_TOKEN"):
+    quit_with_error_message("could retrieve CHOCO_TOKEN env var")
+choco_token = os.environ["CHOCO_TOKEN"]
+
+print("\n_____ get blender info")
+# blender_version_min_maj_pat - from chocolatey.org
+latest_blender_release_maj_min_pat = get_latest_blender_version()
+if not latest_blender_release_maj_min_pat:
+    quit_with_error_message("could not determine blender_version_min_maj_pat")
+latest_blender_release_maj_min_pat = latest_blender_release_maj_min_pat[0]
+print(f"{latest_blender_release_maj_min_pat=}")
+
+# blender_version_min_maj - from chocolatey.org
+html_txt = get_choco_package_info()
+blender_version_min_maj = re.findall(RE_BLENDER_VERSION_MIN_MAJ, html_txt)
+if not blender_version_min_maj:
+    quit_with_error_message("could not determine blender_version_min_maj")
+blender_version_min_maj = blender_version_min_maj [0]
+print(f"{blender_version_min_maj=}")
+
+# blender_python_version_maj_min - from blender repo
+# pyver
+python_version = ""
+latest_blender_version_tag = f"v{latest_blender_release_maj_min_pat}"
+resp = request_repo_info(URL_BLENDER_CMAKE.format(latest_blender_version_tag))
+html_txt = str(resp.read())
+found = re.findall(RE_BLENDER_PYTHON_VERSION_MAJ_MIN, html_txt)
+if not found:
+    quit_with_error_message("could not determine blender_python_version_maj_min")
+
+blender_python_version_maj_min = found[0]
+print(f"{blender_python_version_maj_min=}")
+python_version = f"py{found[0].replace('.', '')}"
+print(f"{python_version=}")
+
+blenderbim_build_version = f"0.0.{blenderbim_date_yesterday}"
+
+# url_blenderbim_py3x_win_zip
+release_zip_file_name = f"{target_release_tag}-{python_version}-{target_os}.zip"
+
+url_blenderbim_py3x_win_zip = f"{URL_IFCOS_RELEASES}{target_release_tag}/{release_zip_file_name}"
+
+os.popen(f"wget {url_blenderbim_py3x_win_zip} --no-verbose").read()
+
+# sha256sum_blenderbim_py310_win_zip
+sha256sum_blenderbim_py3x_win_zip = get_file_sha256_hash(release_zip_file_name)
+
+print("\n_____ fill dynamic chocolatey package parameters")
+HERE_DIR = pathlib.Path(__file__).parent.absolute()
+# print(f"[INFO] HERE_DIR: {HERE_DIR}")
+
+topics = {
+    "spec": {
+        "path": HERE_DIR / "blenderbim.nuspec",
+        "key_values": {
+            "latest_blender_version_maj_min_pat": latest_blender_release_maj_min_pat,
+            "blenderbim_build_version"          : blenderbim_build_version,
+        },
+    },
+    "install": {
+        "path": HERE_DIR / "tools" / "chocolateyinstall.ps1",
+        "key_values": {
+            "url_blenderbim_py3x_win_zip"      : url_blenderbim_py3x_win_zip,
+            "sha256sum_blenderbim_py3x_win_zip": sha256sum_blenderbim_py3x_win_zip,
+            "latest_blender_version_maj_min"   : blender_version_min_maj,
+        },
+    },
+    "uninstall": {
+        "path": HERE_DIR / "tools" / "chocolateyuninstall.ps1",
+        "key_values": {
+            "latest_blender_version_maj_min": blender_version_min_maj,
+        },
+    },
+}
+
+for topic, info in topics.items():
+    print(f"  {topic}:")
+    with open(info["path"], encoding="utf-8") as txt:
+        content = txt.read()
+
+    for key, value in info["key_values"].items():
+        # print(f"[INFO] replace: {env_var_name}")
+        if not key in content:
+            print(f"  {key=} not found in {info['path']}")
+        content = content.replace(key, value)
+
+    with open(info["path"], "w", encoding="utf-8") as txt:
+        txt.write(content)
+        print(f"  written: {info['path']}")
+
+print("[INFO] inserting dynamic chocolatey package parameters successful")
+
+
+print("\n_____ build choco with mono")
+
+choco_version = "1.1.0"
+os.popen(f"wget https://github.com/chocolatey/choco/archive/refs/tags/{choco_version}.tar.gz --quiet").read()
+os.popen(f"tar -xzf {choco_version}.tar.gz").read()
+print("choco tar unpack successful")
+os.chdir("choco-1.1.0")
+os.popen("./build.sh").read()
+
+os.popen("cp -r build_output/chocolatey /opt/chocolatey").read()
+os.chdir("/home/runner/work/IfcOpenShell/IfcOpenShell/choco/blenderbim/")
+
+if pathlib.Path("/opt/chocolatey/choco.exe").exists():
+    print("choco build successful")
+
+print("\n_____ build choco pack")
+
+os.popen("mono /opt/chocolatey/choco.exe pack --allow-unofficial").read()
+os.popen('mono /opt/chocolatey/choco.exe setapikey --key="{choco_token}" --source="https://push.chocolatey.org/" --allow-unofficial').read()
+
+print("\n_____ build choco push")
+os.popen('mono /opt/chocolatey/choco.exe push --source="https://push.chocolatey.org/" --key="$CHOCO_TOKEN" --allow-unofficial --verbose').read()
+
+print(f"choco push of version: {target_release_tag} successful!")
+print(f"it took: {datetime.datetime.now() - start}")