Rust 1.70 came out this past week. One of the highlights of this release was the stabilization of the OnceCell and OnceLock types. OnceLock in particular is a big deal because it has the potential to replace the `lazy-static` and `once-cell` crates, for those times when you want to have a lazily evaluated static data structure.
I just finished a short while ago changing Zond to use the new interface and so far so good. It's nice and simple, with good documentation.
