The Global Hub

The "Global Hub" is what we call the system for dividing the Hub into "subsites" where each Galaxy community can have their own section of the website. When you click the "Regions" dropdown menu in the navbar, those are all subsites.

Each subsite gets its own, customizable homepage, navbar, site-wide footer, and news and events feeds. It's a way to allow each community to have its own web presence without the hassle of maintaining its own web site. Each subsite gets its own url namespace, so everything under your subsite's prefix belongs to you. For example, all urls under are Galaxy Europe pages (e.g.

See the poster from GCC 2022 for more information.

Getting started

First, make sure you're familiar with contributing to the Hub and are able to run the site locally.

To create a new subsite, you'll just need to edit a few files.


First, add your subsite to the config file. See this example (but the gitter field is optional). This is where you decide your subsite's id. This id will be your url prefix and the id you use to tag news and events posts. This should be all lowercase. Try to choose something simple (see the examples already there for guidance).

Content files

Then, create a directory for your subsite in the content directory. Use your subsite's id as the directory name (e.g. content/eu/). Then you'll need at least two files in this directory: navbar.yml and You can just copy the default navbar file from content/navbar.yml, then customize it how you want. The fields should be mostly self-explanatory. The will just need a title at the minimum to get the homepage to display. Then you can customize the homepage as much as you want. You can check the content directories for the other subsites for good examples.

Homepage cards

One special note is that the cards showing news, events, tweets, etc, are configured using a file. See the global homepage's version at content/ for an elaborate example. The cards with type static load content from a separate Markdown file. For example, if the card's name is platforms, the content for that card is defined in If you want a standard list like in that example, you can just set the items in the metadata. Otherwise you can display arbitrary content by writing Markdown after the metadata, like in content/

News and events pages

You'll automatically get pages like and which list all news and events posts which include your subsite's id in the subsites metadata field.

You can add custom content to the top of those pages using Markdown files. For events, the content goes in content/subsite-id/events/ (replace subsite-id with your subsite's id) and for news it's content/subsite-id/news/

Ghost sites

If you want to be part of the Global Hub community but already have a website, you can add yourself as a "ghost site". This means you will have an entry in the navbar 'Regions' dropdown, but no internal page will be created for you. Instead, you provide an external: <url> value in your config.json entry. See the au subsite for an example. To take advantage of cross-site posting as a ghost site, your application can consume the events JSON feed at /events/feed.json (filtered to those occurring < 30 days ago at build time).

More to come

More documentation will be forthcoming but for now the existing subsites provide decent examples of how to do things we haven't covered here.