miniblog.

GNU Make defaults to a single worker, and newer build tools (e.g. ninja) default to the number of physical CPUs. I wish there was an option for 'leave me a little bit of my machine to do stuff'.

https://tigerbeetle.com/blog/2025-02-27-why-we-designed-tigerbeetles-docs-from-scratch/ has an interesting distinction between "physical" and "logical" hash of a tarball. By storing the hash of the decompressed tarball contents (i.e. the logical hash), they can verify the validity of files without needing to keep the tarball around.

I've realised the big advantage of teaching OO with physical analogies. It's well accepted that OO isn't just about modelling the eworld. Physical items are great for explaining subtyping. You can view types as subsets, and Ferrari <: Car <: Vehicle is intuitive.