Urgh, that's what get trying to write a comment through an app (and sadly edit time window is gone). Anyway, the `local` does. It is a manually managed sub-hierarchy, compared to rest being system managed. So `/bin` and `/usr/bin` will have executables managed through a package manager whereas `/local/bin` is were admin will put executables by themselves to be accessible by all users. Also, it's were `make install` will put its builds by default. Systemd provides a per-user similar hierarchy in `~/.local`, which has a `~/.local/bin` directory.