Desiderata

- Simple: Simple operation in terms of counting spaces and \n.
- Avoid "off by one" errors; make sure an empty file is reported as such.
  - Words as space or enter, followed by nonspace, followed by space? Make sure two spaces aren't two words?
- Keep Linux only. 
- No flags. Only count words, not lines.
- Allow piping, as well as reading files.
  - Wonder how normal utilities handle this.
- Could use zig? => Not for now

Steps:

- [ ] Look into how C utilities both read from stdin and from files.
- [ ] ...
- [ ] Compare with other implementations, see how they do it, after I've read my own version
  - Compare with gnu utils, 
  - Compare with musl/busybox implementations, 
  - Maybe make some pull requests, if I'm doing something better?