I'm a fan of the unix tools philosophy, but I sometimes wonder if there's much room for new tools to be added to that toolbox. I've always wanted to come up with my own general-purpose new unix tool.
Just yesterday, I asked on lobste.rs [1] how I could take my small utility to compute the minimum, maximum, and expected value of a dice roll expressed in D&D notation and make it a better Unix citizen. The commenters were helpful, and with few changes I was able to make the program usable in a pipeline, even if I don't really expect that's going to be a use case for me.
As an aside, my utility is also written in Rust; nice to see more of these small programs written in Rust.
This was something of the inspiration for wf as well. https://github.com/jarcane/wf