feat: add mac support with homebrew

handlers.available.mac

@@ -0,0 +1,7 @@
+bash
+zsh
+make
+git
+binary
+npm
+nix

handlers/homebrew/install

@@ -0,0 +1,2 @@
+#!/bin/sh -e
+brew install "$@"

instalee

@@ -193,6 +193,7 @@ if ! test -f "$handlersfile"
 then
 	copy="$(case "$(uname)" in
 			(MINGW64*) echo "$dir_home/handlers.available.windows";;
+			(DARWIN) echo "$dir_home/handlers.available.mac";;
 			(*) ls "$dir_home/$({ cat /etc/os-release | grep -E '^ID(_LIKE)?=' | cut -d= -f2 | grep . || lsb_release -s -i | tr 'A-Z' 'a-z'; } |
 					sed 's/^/handlers.available./' | paste -d' ' -s)" 2>/dev/null | head -1;;
 			esac)" &&

packages/homebrew/bash

@@ -0,0 +1,3 @@
+#!/bin/bash
+# https://brew.sh
+/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"