diff --git a/{{cookiecutter.project_name}}/Taskfile.yml b/{{cookiecutter.project_name}}/Taskfile.yml
index 4e0f0c7..47eaa99 100644
--- a/{{cookiecutter.project_name}}/Taskfile.yml
+++ b/{{cookiecutter.project_name}}/Taskfile.yml
@@ -18,7 +18,7 @@ vars:
   VERSION:
     sh: "{{ '{{.RUN_SCRIPT}}' }} python -c \"import sys; sys.path.insert(0, 'src'); from {{ '{{.PROJECT_SLUG}}' }} import __version__; print(__version__)\""
   LOCAL_PLATFORM:
-    sh: "bash {{ '{{.SCRIPTS_DIR}}' }}/get_platform.sh"
+    sh: "{{ '{{.RUN_SCRIPT}}' }} {{ '{{.SCRIPTS_DIR}}' }}/get_platform.py"
   # Use PLATFORM if specified, otherwise use LOCAL_PLATFORM
   PLATFORM: '{{ '{{if .PLATFORM}}' }}{{ '{{.PLATFORM}}' }}{{ '{{else}}' }}{{ '{{.LOCAL_PLATFORM}}' }}{{ '{{end}}' }}'
   # Output redirect based on CI environment
@@ -88,7 +88,7 @@ tasks:
       TIMESTAMP:
         sh: '{{ '{{.RUN_SCRIPT}}' }} {{ '{{.SCRIPTS_DIR}}' }}/get_rfc3339_timestamp.py'
       EPOCH:
-        sh: 'bash {{ '{{.SCRIPTS_DIR}}' }}/get_epoch.sh'
+        sh: '{{ '{{.RUN_SCRIPT}}' }} {{ '{{.SCRIPTS_DIR}}' }}/get_epoch.py'
       COMMIT_HASH:
         sh: git rev-parse HEAD
       BUILD_PLATFORM: '{{ '{{if eq .PLATFORM "all"}}' }}{{ '{{.SUPPORTED_PLATFORMS}}' }}{{ '{{else if .PLATFORM}}' }}{{ '{{.PLATFORM}}' }}{{ '{{else}}' }}{{ '{{.LOCAL_PLATFORM}}' }}{{ '{{end}}' }}'
@@ -187,18 +187,7 @@ tasks:
   clean:
     desc: Clean up build artifacts, cache files/directories, temp files, etc.
     cmds:
-      - rm -rf .pytest_cache
-      - rm -rf htmlcov
-      - rm -rf .coverage
-      - rm -rf dist
-      - rm -rf build
-      - rm -rf *.egg-info
-      - rm -f sbom.*.json
-      - rm -f vulns.*.json
-      - rm -f license-check.*.json
-      - rm -f {{ cookiecutter.github_org }}_{{ cookiecutter.project_slug }}_*_*.tar
-      - find . -type d -name __pycache__ -exec rm -rf {} + || true
-      - find . -type f -name '*.pyc' -delete || true
+      - '{{ '{{.RUN_SCRIPT}}' }} {{ '{{.SCRIPTS_DIR}}' }}/clean.py'
 
   release:
     desc: Cut a project release
diff --git a/{{cookiecutter.project_name}}/scripts/clean.py b/{{cookiecutter.project_name}}/scripts/clean.py
new file mode 100755
index 0000000..dbd5f41
--- /dev/null
+++ b/{{cookiecutter.project_name}}/scripts/clean.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+"""Cross-platform cleanup of build artifacts, cache files, and temp files."""
+
+import glob
+import shutil
+import sys
+from pathlib import Path
+
+
+def main() -> int:
+    """Remove build artifacts, cache directories, and temporary files."""
+    root = Path(".")
+
+    # Paths to remove (may be files or directories)
+    for name in [".pytest_cache", "htmlcov", ".coverage", "dist", "build"]:
+        path = root / name
+        if path.is_dir():
+            shutil.rmtree(path)
+        elif path.is_file():
+            path.unlink()
+
+    # Glob patterns for directories
+    for path in glob.glob("*.egg-info"):
+        shutil.rmtree(path)
+
+    # Glob patterns for files
+    for pattern in [
+        "sbom.*.json",
+        "vulns.*.json",
+        "license-check.*.json",
+        "{{ cookiecutter.github_org }}_{{ cookiecutter.project_slug }}_*_*.tar",
+    ]:
+        for path in glob.glob(pattern):
+            Path(path).unlink()
+
+    # Recursively remove __pycache__ directories
+    for path in root.rglob("__pycache__"):
+        if path.is_dir():
+            shutil.rmtree(path)
+
+    # Recursively remove .pyc files
+    for path in root.rglob("*.pyc"):
+        path.unlink()
+
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/{{cookiecutter.project_name}}/scripts/get_epoch.py b/{{cookiecutter.project_name}}/scripts/get_epoch.py
new file mode 100755
index 0000000..9bd5159
--- /dev/null
+++ b/{{cookiecutter.project_name}}/scripts/get_epoch.py
@@ -0,0 +1,6 @@
+#!/usr/bin/env python3
+"""Get the current Unix epoch timestamp."""
+
+import time
+
+print(int(time.time()))
diff --git a/{{cookiecutter.project_name}}/scripts/get_epoch.sh b/{{cookiecutter.project_name}}/scripts/get_epoch.sh
deleted file mode 100755
index 5bf579e..0000000
--- a/{{cookiecutter.project_name}}/scripts/get_epoch.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-date +%s
diff --git a/{{cookiecutter.project_name}}/scripts/get_platform.py b/{{cookiecutter.project_name}}/scripts/get_platform.py
new file mode 100755
index 0000000..c1abfbd
--- /dev/null
+++ b/{{cookiecutter.project_name}}/scripts/get_platform.py
@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+"""Get the Docker platform string for the current machine.
+
+Always uses 'linux' as the OS since container builds target Linux.
+"""
+
+import platform
+import sys
+
+# Always use linux for container builds
+os_name = "linux"
+machine = platform.machine().lower()
+
+# Inspired by https://github.com/containerd/containerd/blob/e0912c068b131b33798ae45fd447a1624a6faf0a/platforms/database.go#L76
+arch_map = {
+    # AMD64
+    "x86_64": "amd64",
+    "amd64": "amd64",
+    # ARM64
+    "aarch64": "arm64",
+    "arm64": "arm64",
+}
+
+if machine not in arch_map:
+    print(f"Unsupported architecture: {machine}", file=sys.stderr)
+    sys.exit(1)
+
+print(f"{os_name}/{arch_map[machine]}")
diff --git a/{{cookiecutter.project_name}}/scripts/get_platform.sh b/{{cookiecutter.project_name}}/scripts/get_platform.sh
deleted file mode 100755
index 9010676..0000000
--- a/{{cookiecutter.project_name}}/scripts/get_platform.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-# Always use linux for container builds
-os="linux"
-arch="$(uname -m)"
-
-# Inspired by https://github.com/containerd/containerd/blob/e0912c068b131b33798ae45fd447a1624a6faf0a/platforms/database.go#L76
-case ${arch} in
-  # AMD64
-  x86_64)  echo "${os}/amd64" ;;
-  amd64)   echo "${os}/amd64" ;;
-
-  # ARM64
-  aarch64) echo "${os}/arm64" ;;
-  arm64)   echo "${os}/arm64" ;;
-
-  *) echo "Unsupported architecture: $arch" && exit 1 ;;
-esac