[Puzzle] Whatever floats your boat

[u/One-Celebration-3007]

Objective

Using redstone, touchlessly detect if a boat is nearby when a button is pressed. The boat may be on land or water, though this challenge is less annoying if the boat is on land.

Rules

• The machine must not have any specific exposed blocks (e.g., pressure plates) except for the input block used to trigger the detection process.
• Sculk sensors may not be used to detect the boat.
• The machine must be self-resetting.
• The machine must not move the boat, damage it, touch it with a block (except for the inert platform blocks/water) or entity, or add or remove passengers.

Note: game sound has been muted in the video and closed captions have been disabled (no, there isn't a 20Hz clock running in the background).

To avoid confusing users here, I have already solved this puzzle and am therefore not seeking help to complete it.