I am thinking to add hooks mechanism to fx,

Hooks

• BEFORE_BUILD: run right before image building process.
• AFTER_BUILD: run right after image build
• BEFORE_START: run right before the service starts
• AFTER_STARTED: run right after service started

Use Case

• Dependency management
  • module/package that managed by dependency management tools (npm, Gem, cargo, etc)
  • local source codes (require/import from relative path)
• Heath Check