Instalación OpenFOAM.com mediante NIX
-------------------------------------

1. Checkout del repo nix en GIT CSC para openfoam, get de las fuentes.

```bash
git checkout https://git.csc.gob.ar/gperez/openfoam-nix.git
cd openfoam-nix

wget https://develop.openfoam.com/Development/openfoam/-/archive/OpenFOAM-v2212/openfoam-OpenFOAM-v2212.tar.gz
tar xzf openfoam-OpenFOAM-v2212.tar.gz -C OpenFOAM
```

2. Pisar  etc/bashrc con el nuestro editado

```
cp bashrc OpenFOAM/etc
```


3. Entrar a entorno de desarrollo de nix y compilar OpenFOAM

```bash
nix develop
cd OpenFOAM
source etc/bashrc
./Allwmake -q -j -s
```