Cannot run build command following install.md "CUDA_HOME environment variable is not set"

[autotel]

I am following Install.md.
I have very little experience with python.

During the procedure I had to add some steps, as the setup would complain of missing packages:

conda install torch
conda install numpy

Also conda could not find the package pytorch-cuda=11.3 (neither variations of it, such as conda install pytorch::pytorch, so I installed this package using pip install pytorch-cuda. Probably my setup was flimsy at this point.

I get 100% stuck when I run python setup.py build develop with the following result:

File "/[...]/miniconda3/envs/alphapose/lib/python3.7/site-packages/torch/utils/cpp_extension.py", line 2230, in _join_cuda_home
    raise EnvironmentError('CUDA_HOME environment variable is not set. '
OSError: CUDA_HOME environment variable is not set. Please set it to your CUDA install root.

How should we troubleshoot this?

OS: Ubuntu 22.04.4 LTS 64 bits
Graphics:  NVIDIA GeForce GTX 1050
CPU: Intel® Core™ i7-7700HQ CPU @ 2.80GHz × 8

[autotel]

My computer got stolen, hence the answers will not be anymore helpful to me specifically anymore