In addition to https://hex-rays.com/blog/building-ida-python-on-windows
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Install Visual Studio 2022 with next components:
Python Desktop development
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Install python 3.14 (or latest version) to C:\Python314 directory. It can be using by python variables in next points. Something like C:\Python<PYTHON_VERSION_MAJOR>.<PYTHON_VERSION_MINOR>
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Get sources of IDA SDK