A puffer moves and leaves ash
A clean spaceship moves without leaving debris. A puffer moves while leaving a trail. That one difference gives users a reason to switch from the small teaching lab to the advanced infinite board.
Pufferfish is a compact example for the regular catalogue. The block-laying switch engine is the clearer long-run demonstration because the stable blocks in its wake are easy to recognize.
Rakes emit moving objects
A rake is a moving pattern that emits spaceships. It is easiest to understand after glider guns, because both concepts involve repeated output.
The practical distinction is motion: a gun stays in place, while a rake travels as it emits. That makes rakes a better fit for the advanced viewer.
Breeders change the growth story
A breeder produces objects that produce more objects, leading to quadratic growth. This is beyond the needs of a beginner page, but it is a strong advanced topic because it connects Life patterns to growth-rate questions.
The advanced page should therefore expose breeder, rake, puffer, and large growth examples side by side.
Working takeaway
Use pufferfish and switch engines as the local preview, then send long-running puffer, rake, and breeder examples into the infinite-board module.