Tree

$ ./zig-out/bin/tree -h
 USAGE:
     ./zig-out/bin/tree [OPTIONS] [--] [directory]

 OPTIONS:
	-m, --mode STRING                 Line drawing characters. (valid: ascii|box|dos)(default: box)
	-a, --all                         All files are printed.
	-s, --size                        Print the size of each file in bytes along with the name.
	-d, --directory                   List directories only.
	-L, --level INTEGER               Max display depth of the directory tree.
	-v, --version                     Print version.
	-h, --help                        Print help information.

Demo

$ ./zig-out/bin/tree src
src
├──bin
│  ├──loc.zig
│  ├──night-shift.zig
│  ├──pidof.zig
│  ├──repeat.zig
│  ├──tree.zig
│  ├──util.zig
│  └──yes.zig
└──mod
   ├──pretty-table.zig
   └──simargs.zig

1 directories, 4 files