Starting Organizing Categories

To start a category - in Admin, click on Categories - and upper right hamburger is Add Category. [1]
Staring subcategories - upon creation, you can select it to nest under.

Wiki Integration

Search feature appears to be robust. You can search any topics by keywords, which integrates well with OSE infrastructure such as wiki.
Taxonomy for versioning should be followed. Thus - machine name - 3D Printer v20.04 should be equally searchable on wiki and on forums.

Create custom badges for people familiar with design. Create Design Guides and Test for each design - so that we qualify able designers who use the OSE design principles. [2]
Discourse can serve as a go-to place for certifying skills, and thus becomes a priceless source of transparent development talent. If we teach people high quality skills, then the OSE Community (Forum) becomes a critical part of OSE development infrastructure. By making skill sets transparent, we create star talent, and external audiences, ideally, start to recognize the OSE Community as a formidable source of development talent. This will help tremendously during Incentive Challenges, and would allow us to solve COVID-scale problems readily by leveraging our community.
To grant a badge, go to Admin->Users->Badges
Note that badges icons should have a transparent background to look good.