>This is going to sound pedantic, but SQLite is not Open Source. It's Public Domain. Well, there are 2 different modes of communication:
(1) official language-lawyer pedantic communication: "open source" != "public domain"
(2) conversational casual chitchat : "open source" includes "public domain"
Yes, the SQLite home page does say "public domain". However, when people interview SQLite create, Richard Hipp, he himself calls it "open source". He also doesn't correct others when they also call it "open source". Excerpt of R Hipp:
So, I thought, well, why can't I have a database that just
reads directly off the disc? And I looked around and
there were none available. I thought, “oh, I'll just write
my own, how hard can that be?” Well, it turns out to be
harder than you might think at first, but I didn't know
that at the time. But we got it out there and I just put it
out as open source. And before long, I started getting
these phone calls from the big tech companies of the
day, like Motorola and AOL, and, “Hey, can you
support this?”, and “Sure!” And it's like, wow, you can
make money by supporting open source software?
https://sigmodrecord.org/publications/sigmodRecord/1906/pdfs... 
Well, there are 2 different modes of communication:
(1) official language-lawyer pedantic communication: "open source" != "public domain"
(2) conversational casual chitchat : "open source" includes "public domain"
Yes, the SQLite home page does say "public domain". However, when people interview SQLite create, Richard Hipp, he himself calls it "open source". He also doesn't correct others when they also call it "open source". Excerpt of R Hipp:
https://sigmodrecord.org/publications/sigmodRecord/1906/pdfs...