Use process substitution to run the script

This ensures that we can get input from the terminal.

README.md

@@ -7,5 +7,5 @@ Script and Brewfile to setup a Mac for development.
 1. Run the setup script with:
 
   ```sh
-  curl -s https://raw.githubusercontent.com/danbee/mac-setup/master/setup.sh | sh`
+  $ sh <( curl -s https://raw.githubusercontent.com/danbee/mac-setup/master/setup.sh )
   ```

extra.sh

@@ -1,4 +1,5 @@
 #!/bin/sh
+
 MAC_SETUP_DIR="$HOME/mac-setup"
 
 BOLD="\033[1m"

lib/chunkwm.sh

@@ -2,7 +2,7 @@
 
 # Ask the user to generate a code signing key for `chunkwm`
 echo "Please generate a code signing certificate called 'chunkwm-cert' in Keychain Access"
-sh -c 'read -r -p "Press any key to continue... " -n 1'
+read -r -p "Press any key to continue... " -n 1
 
 # We need to code sign chunkwm and skhd in order for them to be added to the
 # accessibility allowed list.

lib/dotfiles.sh

@@ -1,4 +1,5 @@
 #!/bin/sh
+
 cd "$HOME"
 
 if [ $SHELL != $(which zsh) ]; then

lib/macos.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/sh
 
 # Close any open System Preferences panes, to prevent them from overriding
 # settings we’re about to change

setup.sh

@@ -1,4 +1,5 @@
 #!/bin/sh
+
 MAC_SETUP_DIR="$HOME/mac-setup"
 
 BOLD="\033[1m"
@@ -19,7 +20,7 @@ if [ ! -f "$HOME/.ssh/id_ed25519.pub" ]; then
   echo "============ Public key ============="
   cat ~/.ssh/id_ed25519.pub
   echo "====================================="
-  sh -c 'read -r -p "Press any key to continue... " -n 1'
+  read -r -p "Press any key to continue... " -n 1
 fi
 
 # Add the SSH key to the agent now to avoid multiple prompts