Puffin fails with python-build-standalone

[konstin]

To reproduce:

rye init a
cd a
rye pin --relaxed cpython@3.12
rye sync # Create the venv
source .venv/bin/activate
rye add meine_stadt_transparent
puffin pip compile --no-cache pyproject.toml

error: Failed to download and build: django-settings-export==1.2.1
  Caused by: Failed to build: django-settings-export==1.2.1
  Caused by: Build backend failed to determine metadata through `prepare_metadata_for_build_wheel`:
--- stdout:

--- stderr:
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Python path configuration:
  PYTHONHOME = (not set)
  PYTHONPATH = (not set)
  program name = '/tmp/.tmplgCMCy/.venv/bin/python'
  isolated = 0
  environment = 1
  user site = 1
  safe_path = 0
  import site = 1
  is in build tree = 0
  stdlib dir = '/install/lib/python3.12'
  sys._base_executable = '/home/konsti/.rye/py/cpython@3.12.0/install/bin/python3.12'
  sys.base_prefix = '/install'
  sys.base_exec_prefix = '/install'
  sys.platlibdir = 'lib'
  sys.executable = '/tmp/.tmplgCMCy/.venv/bin/python'
  sys.prefix = '/install'
  sys.exec_prefix = '/install'
  sys.path = [
    '/install/lib/python312.zip',
    '/install/lib/python3.12',
    '/install/lib/python3.12/lib-dynload',
  ]
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007fa7c1a8c740 (most recent call first):
  <no Python frame>
---

This error can happen when loading python through libpython and not setting PYTHONHOME, needs investigation why it happens with standalone python.