Failed to load storage module 'radicale_storage_decsync': libdecsync: A 64bit platform is required evon on a 64bit Kernel

[dolorosus]

On a raspberry pi 3+ (Linux raspberrypi 5.10.52-v8+ #1441 SMP PREEMPT Tue Aug 3 18:14:03 BST 2021 aarch64 GNU/Linux). Starting radicale-DecSync this error occurs:
[8569] [CRITICAL] An exception occurred during server startup: Failed to load storage module 'radicale_storage_decsync': libdecsync: A 64bit platform is required. Found '32bit'.

Steps to reproduce:
uname -a
Linux raspberrypi 5.10.52-v8+ #1441 SMP PREEMPT Tue Aug 3 18:14:03 BST 2021 aarch64 GNU/Linux

pip3 install radicale_storage_decsync
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting radicale_storage_decsync
Using cached https://www.piwheels.org/simple/radicale-storage-decsync/radicale_storage_decsync-1.2.2-py3-none-any.whl
Collecting radicale>=3 (from radicale_storage_decsync)
Using cached https://files.pythonhosted.org/packages/ca/62/29ba76472b5115affa124945ced26244b32d31e4a102aa7ba824416109ae/Radicale-3.0.6-py3-none-any.whl
Collecting libdecsync>=1.3.1 (from radicale_storage_decsync)
Using cached https://www.piwheels.org/simple/libdecsync/libdecsync-1.7.1-py3-none-any.whl
Collecting defusedxml (from radicale>=3->radicale_storage_decsync)
Using cached https://files.pythonhosted.org/packages/07/6c/aa3f2f849e01cb6a001cd8554a88d4c77c5c1a31c95bdf1cf9301e6d9ef4/defusedxml-0.7.1-py2.py3-none-any.whl
Collecting python-dateutil>=2.7.3 (from radicale>=3->radicale_storage_decsync)
Using cached https://files.pythonhosted.org/packages/36/7a/87837f39d0296e723bb9b62bbb257d0355c7f6128853c78955f57342a56d/python_dateutil-2.8.2-py2.py3-none-any.whl
Collecting vobject>=0.9.6 (from radicale>=3->radicale_storage_decsync)
Using cached https://www.piwheels.org/simple/vobject/vobject-0.9.6.1-py3-none-any.whl
Collecting passlib (from radicale>=3->radicale_storage_decsync)
Using cached https://files.pythonhosted.org/packages/3b/a4/ab6b7589382ca3df236e03faa71deac88cae040af60c071a78d254a62172/passlib-1.7.4-py2.py3-none-any.whl
Collecting six>=1.5 (from python-dateutil>=2.7.3->radicale>=3->radicale_storage_decsync)
Using cached https://files.pythonhosted.org/packages/d9/5a/e7c31adbe875f2abbb91bd84cf2dc52d792b5a01506781dbcf25c91daf11/six-1.16.0-py2.py3-none-any.whl
Installing collected packages: defusedxml, six, python-dateutil, vobject, passlib, radicale, libdecsync, radicale-storage-decsync
Successfully installed defusedxml-0.7.1 libdecsync-1.7.1 passlib-1.7.4 python-dateutil-2.8.2 radicale-3.0.6 radicale-storage-decsync-1.2.2 six-1.16.0 vobject-0.9.6.1

python3 -m radicale --config "~/.config/radicale/config"
[2021-08-13 14:02:40 +0200] [8569] [CRITICAL] An exception occurred during server startup: Failed to load storage module 'radicale_storage_decsync': libdecsync: A 64bit platform is required.

[dolorosus]

Sorry wrong repo