The Speed of Light Is a Number, Right?

In particle physics, we could define speed of light to be one and everything is set relative to that. And so here we're defining the meter so that the speed of light is exactly two, nine, nine, seven, nine,. Two, four, five, eight, with no decimal places, like, it's exactly that number. But i think by using a number that doesn't have any decimal places, right, you get that to be the meter; then you use that meter to measure the speed of Light. Like, technically, philosophically, your trying to say that we don't know what the speed oflight is. We just picked a number and said, that's it