Not the one you're asking, but I've read both The Martian and Project Hail Mary. You absolutely gotta try PHM if you liked the martian. They're both incredible books, but if I had to rank them, it'd be real close, but Hail Mary would come out on top.
It wasn't sold, it's being funded. There's a big difference. And the group behind the funding is a huge supporter of FOSS. They're gonna be "selling" immich licenses soon, but they're also going to keep all the source code open and available for anyone to download, modify, or use however they want.