On Gentoo, definitely. I really don't want to rebuild my whole system whenever some foundational library fixes a bug. It already annoys me quite a bit that I ne

On Gentoo, definitely. I really don't want to rebuild my whole system whenever some foundational library fixes a bug. It already annoys me quite a bit that I need to set up sccache to get half-way reasonable compile times out of Rust projects (and I'm saying that as someone who enjoys gradually replacing significant portions of the userspace with Rust tools).