To install Hydrogen run
apm install hydrogen or search for Hydrogen in the Install pane of the Atom settings.
If you are using Linux 32-bit follow the installation instructions here.
Checkout nteract.io/kernels for instructions on how to install the most popular kernels.
Tested and works with:
Note that if you install a new kernel, you'll need to run Hydrogen: Update Kernels for Hydrogen to find it. For performance reasons, Hydrogen only looks for available kernels when it first starts.
We have a troubleshooting guide! It's pretty sparse at the moment, so please share with us the resolution to any rough spots that you find.