====== 21cmFAST ======
https://github.com/21cmfast/21cmFAST

https://21cmfast.readthedocs.io/en/latest/installation.html

===== Installation =====
Create a conda environment, activate and install as following.

<code>
conda create --name=HI
conda activate HI

conda install -c conda-forge jupyter-lab
conda install -c conda-forge 21cmfast
pip install tools21cm
</code>

===== Astrophysical parameter =====