# Running Slicer on headless server (Installing Extensions and more...)

**URL:** <https://discourse.slicer.org/t/running-slicer-on-headless-server-installing-extensions-and-more/11689>\
**Category:** Support\
**Created:** [May 25, 2020, 9:42am UTC](https://discourse.slicer.org/t/running-slicer-on-headless-server-installing-extensions-and-more/11689 "2020-05-25T09:42:50Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [May 25, 2020, 3:53pm UTC](https://discourse.slicer.org/t/running-slicer-on-headless-server-installing-extensions-and-more/11689/5 "2020-05-25T15:53:55Z")

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I’m happy that it works for you now.

I would strongly recommend to use Slicer-4.11:

- it uses Python 3
- you can install any python packages into Slicer’s Python environment
- its kernel is based on xeus-python which is essentially a full IPython implementation (while our custom kernel that we implemented in Slicer-4.10 had a number of limitations), including widgets and interactive 3D viewer in notebook cells. See some more information here:

> [@Run Slicer in your web browser - as a Jupyter notebook or as a full application](https://discourse.slicer.org/t/run-slicer-in-your-web-browser-as-a-jupyter-notebook-or-as-a-full-application/11569):
>
> It has been possible to use Slicer from Jupyter notebooks but the most recent Slicer Preview Release takes this to a whole new level. [Click here to try a few example interactive notebooks now](https://mybinder.org/v2/gh/slicer/SlicerNotebooks/master) - or see a short video demonstrating the new features: [[Medical image processing in your web browser using Jupyter notebooks and 3D Slicer] ](https://www.youtube.com/watch?v=oZ3_cRXX2QM) Highlights: Improved interactive use You can now use IPython widgets (sliders, buttons, etc.) to control Slicer or adjust processing and visualization…

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_[View the full topic](https://discourse.slicer.org/t/running-slicer-on-headless-server-installing-extensions-and-more/11689)._