Interesting! I had no idea about this fork.
But, seriously what is "open source but not open contribution"!? One of the main byproducts of the open source way is that if you think your ideas are not being heard, you can simply fork away. It looks like the author was referring to the fact that the way SQLite is governed, corporates cannot financially sponsor in exchange for project steering rights π€·ββοΈ
It's probably just me but that weird yet intentional wording made me lose interest in the actual offering π