# Description

This PR 

1. makes sure(skip if already satisfy, else install) the right torch is
installed before and after pip installing isaaclab packages as
sometime(rare case) due to flaky setup.py and unknown library
dependencies changes pytorch version gets overriden.

2. only install pink and retargeters in linux x86 or amd64 machines


## Type of change

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applicable. -->

- Bug fix (non-breaking change which fixes an issue)

## Screenshots

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## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [x] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

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Co-authored-by: Mayank Mittal <12863862+Mayankm96@users.noreply.github.com>