I just looked this up yesterday so sharing some more up-to-date resources for those interested in Zig:

- Learning Zig by Karl Seguin: https://www.openmymind.net/learning_zig/

- https://zig.guide/

- Free project-based online book Introduction to Zig by Pedro Park: https://pedropark99.github.io/zig-book.

- Ziglings, almost working programs you need to fix: https://codeberg.org/ziglings/exercises

"More up-to-date" meaning more sources that are also up to date like the OP, or meaning that the OP is not up to date? Silly English language!