move spack page and expand

pages/merlin7/02-How-To-Use-Merlin/spack.md

@@ -0,0 +1,24 @@
+---
+title: Spack
+keywords: spack, python, software, compile
+summary: "Spack the HPC package manager documentation"
+sidebar: merlin7_sidebar
+toc: false
+permalink: /merlin7/spack.html
+---
+![Work In Progress](/images/WIP/WIP1.webp){:style="display:block; margin-left:auto; margin-right:auto"}
+
+{{site.data.alerts.warning}}The Merlin7 documentation is <b>Work In Progress</b>.
+Please do not use or rely on this documentation until this becomes official.
+This applies to any page under <b><a href="https://lsm-hpce.gitpages.psi.ch/merlin7/">https://lsm-hpce.gitpages.psi.ch/merlin7/</a></b>
+{{site.data.alerts.end}}
+
+For Merlin7 the *package manager for supercomputing* [Spack](https://spack.io/) is available. It is meant to compliment the existing PModules
+solution, giving users the opertunity to manage their own software environments.
+
+Documentation for how to use Spack on Merlin7 is provided [here](https://gitlab.psi.ch/lsm-hpce/spack-psi/-/blob/main/README.md).
+
+## The Spack PSI packages
+
+An initial collection of packages (and Spack reciepes) are located at <https://gitlab.psi.ch/lsm-hpce/spack-psi>, users can directly use these
+through calls like `spack add ...`.