Liam Thompson is a 21-year-old Youtuber who’s known for building cool stuff.

His cat’s name may be Frodo, but Thompson said he’s in “Gandalf territory” at 20 years old and has been having trouble getting around to his favorite spots, especially a sunny corner of the backyard where he likes to sit poolside and enjoy the New Zealand warmth.

“Despite his ancient-ness, he still insists on hobbling down these stairs every day to sit out in the sun,” Thompson says in a video about his latest project. “That is, until today.”

The video shows the handy Kiwi building an “elevator” — more like a stair lift for a cat — out of wood, an electronic hoist and a handful of small hardware pieces. The passenger compartment is a simple cart, and at the press of a button the cart descends or ascends the stairs along a wooden track.

“Are you ready to go downstairs without having to move a muscle?” he asks his cat before the maiden ride. “I hope so, because it took me four days.”

Thompson is delighted as the elevator works perfectly and Frodo rides it without fear or protest, laughing as the orange senior cat makes himself comfortable during the ride. The current setup requires Thompson to push a button, but perhaps in the future he can add a simple button for Frodo directly on the cart.

Speaking of elevators, this cat thinks he’s Leslie Chow from The Hangover: