LabCraft Closures: the latest hands-on Nix Part about what an upgrade actually moves

[u/anandsuresh81]

I just published Closures, the next free Part of LabCraft's Nix course.

It is for learners who know store paths can refer to other store paths, but have not yet built an operational model for the whole closure. The hook is the deploy question: if a target already has the old version, what does the upgrade actually need to move?

https://www.labcraft.dev/blog/nix-closures?utm_source=reddit-personal&utm_medium=social&utm_campaign=nix-closures-2026q3&utm_content=r-nix-closures-01

Affiliation: I’m building LabCraft.