cursor released their fast regex search impl called instant grep (a questionable implementation that takes a while to build indexes for, but an implementation regardless)

i built an implementation in Elixir based on their spec and published it on Homebrew for people to install and use: ``` brew tap GrowlyX/instantgrep brew install instantgrep ```

feel free to contribute and improve on Cursor's original design on my github (or hate it!)! https://github.com/GrowlyX/instantgrep/

current issues: - the overhead from beamvm causes a 3s delay when using the CLI tool (PR#1 proposes a fix, but in review)