What’s the deal with zkswap?

I've been looking at some L2s and skswap came up based on total locked value. It looked like it could be an up and comer but then after doing a bit of a review it seems like it's on a downward trend?

It did have a tvl of $1b+ and now only $120m?

It also had a zks price $10 and is now under $1.

Does anyone know what happened?