As long as the fork doesnt violate trademark (turso vs sqlite) it is working-as-intended?
I, for one, encourage this kind of behavior. We should have more forks. More forks = more competition = better results for everyone.
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To make an analogy. Would you say the same thing if this were a for-profit company?
"I cant believe someone else is competing the same space as $x. $x is hugely successful, and so many people use it. I dont know why there's an alternative"