> I do not understand why it isn't open source.
Because your software project then becomes a people management project.
Because your software project then becomes a people management project.
There’s nothing about open source code that requires you to do anything at all with it.
And if you really like something about someone else's fork, you can even upstream stuff from it yourself (which, for clarity, SQLite won't do, but you can).
Then a fork gets made and if they improve it massively then half your users end up using it and the other half ends up bugging you to add the improvements into your version and it's no longer your project.
I mean I agree too it should be open source if the dev doesn't really update it anymore but I can also completely see why they wouldn't want to do that.