This should be really fast (on my tests in was around 10x faster than eza + ripgrep/grep and 2x faster than GNU's ls + ripgrep/grep

Requirements:

• Any C compiler
• Gnumake
• Hands

Compilation:

make

Or

cc main.c -o search

Usage:

search <directory> <substring> [-i] [-r]

Example

search /nix/store foo

search /nix/store "foo bar"

search /nix/store FoOBAR -i -r