Structure of the tree

The idea of a "skill tree" is inspired by video games and this epic WebAssembly post. The tree consists of groups of work that, together, enable something greater than the sum of their parts. For each group in the tree we have...

• A title, summarizing the group.
• A few lines of impact, describing what will happen when the work is done.
• Various work items that must be completed.

Many of the groups and items are themselves links to other skill trees or web pages that give more detail.