See also GitHub Actions explained quickly

• Easily support the generation of multiple GHA workflows
• Building blocks to ease code sharing
• Clear documentation and guideposts for how certain mechanisms work and when they are required
• An "opt-out by default" interface (i.e. the opposite of an overly opinionated framework)

• Fully type-safe YAML integration
  • The generated YAML should be valid for most cases but does not internally use a YAML model
• Being an "overly opinionated framework"