Joost van der Sluis is one of the developers of the Free Pascal Compiler. Most of his work is related to the packages that come with the compiler but he did also some work on the compiler and RTL.
He is one of the owners of CNOC, a Dutch company that develops administrative software for businesses.
He created this site to raise more funds for the development of Free Pascal and Lazarus: “Some of the FPC developers would love to spend more time on the compiler and the accompanying packages. But they need the funds to do so. We need more donations to support their work on Free Pascal.”