Author puts up Maven as an example of no lockfiles. Maven does allow a top-level project to control its transitive dependencies (when there is a version conflict, the shallowest dependency wins; the trivial version of this is if you specify it as a top-level dependency).

I think rather that the author doesn't realize that many people in the lockfile world put their lockfiles under version control. Which makes builds reproducible again.

Yes, but Maven doesn't support reproducibility (outside of plugins that basically haul in a lockfile). So his whole point is moot (Gradle now does, as an aside: https://docs.gradle.org/current/userguide/dependency_locking...)

Again - I don't think the author is aware enough of the problem space to be making the sort of claim that he is. He doesn't understand the problem lockfiles are solving, so he doesn't know why they exist and wants them gone... chesterton's fence in action.

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Directly declaring deps is great. It's so great that we'd like to do it for every dependency in many (arguably most) cases. But doing that really sort of sucks when you start getting into even low 10s of deps. Enter... lockfiles and the tooling to auto-resolve them.