Amateur/Home Built/Experimental pilot reported the nose wheel gear collapsed during landing.

Narrative

I was flying under the Bravo B airspace in the area coming in for a landing at ZZZ airport field having done 2 landings to a stop at ZZZ1 airfield. Then I took off from ZZZ1 to field ZZZ for a landing back at my home airport. Upon entering the pattern dropping my landing gear and flaps I set up for landing with 3 green down indication lights that my gear was down and locked. I then checked my 3 cameras on each gear leg to confirm all landing gear were down and proceed to land at the field ZZZ. After the main Gear was planted I applied the brakes lightly on the runway. The nose wheel coming down onto the pavement with a short roll out I applied the brakes a second time to slow the plane down even more...the nose gear (front) collapsed and dropped onto the pavement coming to a sudden halt with damaged to the prop and some cowling damage. The spring downlocks did not hold with the hydraulic pressure within a spring assist system. I need to evaluate the planes down lock design and come up with a better solution. The fix for this is new pressure values and a proper down dock situation for the future. I will be working to correct this issue before flying again.