Is this easy to uninstall? Install per project directory?

[psdn]

Does this make any changes to opencode itself, and is it easy to uninstall if I choose? Is it a global install or local per project? I'd like to try it, but I don't want a play with a messy install if I choose to remove. I'm new to opencode itself, and I have not experienced .opencode/ folders in my projects so far.

***Edit

I think I see it:
INSTALL_DIR=".opencode" print_success "Installing to local directory: .opencode/" sleep 1 ;;
Will the install add the .opencode directory if not there? Should I run curl in a created .opencode directory?