anchor.diff:  
   Tools are specialized according to:
   
  -- Architecture - how source is compiled for target machine and environment
  +- Architecture - how source is compiled for target machine and execution environment
   - Variant - global variations on compiling
   
   Spores
  
positive.code: ====================
  
  This document captures core design principles and concepts for the Moss build system.
  
  Overview
  --------
  
  Moss produces completed software artifacts from source code.
  The core concepts required by this process are:
  
negative.code: A build variant is a selection that applies across all architectures and toolchains (in most cases). An example would be debug vs production.
  
  Variants provide the mechanism for compiling multiple spores for the same architecture with different collections of settings that apply to all spores. Example use cases that apply here are debug, production, or special test build variants.
  