diff --git a/REFERENCE.md b/REFERENCE.md
index e8b419ea..55eacd71 100644
--- a/REFERENCE.md
+++ b/REFERENCE.md
@@ -619,6 +619,35 @@ The puppet-agent version to install.
 
 Default value: `undef`
 
+### <a name="puppet_agent--prepare--package"></a>`puppet_agent::prepare::package`
+
+for installation. This is used on platforms without package managers capable of
+working with a remote https repository.
+
+#### Parameters
+
+The following parameters are available in the `puppet_agent::prepare::package` class:
+
+* [`source`](#-puppet_agent--prepare--package--source)
+* [`package_file_name`](#-puppet_agent--prepare--package--package_file_name)
+
+##### <a name="-puppet_agent--prepare--package--source"></a>`source`
+
+Data type: `Variant[String, Array]`
+
+The source file for the puppet-agent package. Can use any of the data types
+and protocols that the File resource's source attribute can.
+
+##### <a name="-puppet_agent--prepare--package--package_file_name"></a>`package_file_name`
+
+Data type: `Optional[String]`
+
+The destination file name for the puppet-agent package. If no destination
+is given, then the basename component of the source will be used as the
+destination filename.
+
+Default value: `undef`
+
 ### <a name="puppet_agent--prepare--puppet_config"></a>`puppet_agent::prepare::puppet_config`
 
 Private class called from puppet_agent::prepare class.
diff --git a/manifests/osfamily/darwin.pp b/manifests/osfamily/darwin.pp
index ab3dfd15..226c511a 100644
--- a/manifests/osfamily/darwin.pp
+++ b/manifests/osfamily/darwin.pp
@@ -8,24 +8,36 @@
     $productversion_array = split($facts['os']['macosx']['version']['major'], '[.]')
     $productversion_major = $productversion_array[0]
   }
-
-  if $puppet_agent::absolute_source {
-    $source = $puppet_agent::absolute_source
+  $source = if $puppet_agent::absolute_source {
+    $puppet_agent::absolute_source
   } elsif ($puppet_agent::is_pe and (!$puppet_agent::use_alternate_sources)) {
     $pe_server_version = pe_build_version()
     if $puppet_agent::alternate_pe_source {
-      $source = "${puppet_agent::alternate_pe_source}/packages/${pe_server_version}/${facts['platform_tag']}/${puppet_agent::package_name}-${puppet_agent::prepare::package_version}-1.osx${$productversion_major}.dmg"
+      "${puppet_agent::alternate_pe_source}/packages/${pe_server_version}/${facts['platform_tag']}/${puppet_agent::package_name}-${puppet_agent::prepare::package_version}-1.osx${productversion_major}.dmg"
     } elsif $puppet_agent::source {
-      $source = "${puppet_agent::source}/packages/${pe_server_version}/${facts['platform_tag']}/${puppet_agent::package_name}-${puppet_agent::prepare::package_version}-1.osx${$productversion_major}.dmg"
+      "${puppet_agent::source}/packages/${pe_server_version}/${facts['platform_tag']}/${puppet_agent::package_name}-${puppet_agent::prepare::package_version}-1.osx${productversion_major}.dmg"
+    } else {
+      "puppet:///pe_packages/${pe_server_version}/${facts['platform_tag']}/${puppet_agent::package_name}-${puppet_agent::prepare::package_version}-1.osx${productversion_major}.dmg"
+    }
+  } elsif $puppet_agent::collection =~ /core/ {
+    if $puppet_agent::prepare::package_version =~ /^\d+\.\d+\.\d+\.\d+\.g([a-f0-9]+)+$/ {
+      "https://artifacts-puppetcore.puppet.com/v1/download?type=native&version=${puppet_agent::prepare::package_version}&os_name=osx&os_version=${productversion_major}&os_arch=${puppet_agent::arch}&dev=true"
     } else {
-      $source = "puppet:///pe_packages/${pe_server_version}/${facts['platform_tag']}/${puppet_agent::package_name}-${puppet_agent::prepare::package_version}-1.osx${$productversion_major}.dmg"
+      "https://artifacts-puppetcore.puppet.com/v1/download?type=native&version=${puppet_agent::prepare::package_version}&os_name=osx&os_version=${productversion_major}&os_arch=${puppet_agent::arch}"
     }
   } else {
-    $source = "${puppet_agent::mac_source}/mac/${puppet_agent::collection}/${productversion_major}/${puppet_agent::arch}/${puppet_agent::package_name}-${puppet_agent::prepare::package_version}-1.osx${$productversion_major}.dmg"
+    "${puppet_agent::mac_source}/mac/${puppet_agent::collection}/${productversion_major}/${puppet_agent::arch}/${puppet_agent::package_name}-${puppet_agent::prepare::package_version}-1.osx${productversion_major}.dmg"
+  }
+
+  $destination_name = if $puppet_agent::collection =~ /core/ {
+    "${puppet_agent::package_name}-${puppet_agent::prepare::package_version}-1.osx${productversion_major}.dmg"
+  } else {
+    undef
   }
 
   class { 'puppet_agent::prepare::package':
-    source => $source,
+    source           => $source,
+    destination_name => $destination_name,
   }
 
   contain puppet_agent::prepare::package
diff --git a/manifests/prepare/package.pp b/manifests/prepare/package.pp
index a1b1e549..5cd5ed99 100644
--- a/manifests/prepare/package.pp
+++ b/manifests/prepare/package.pp
@@ -56,6 +56,45 @@
       creates => $local_package_file_path,
       require => File[$puppet_agent::params::local_packages_dir],
     }
+  } elsif $puppet_agent::collection =~ /core/ and $facts['os']['family'] =~ /Darwin/ {
+    $download_username = getvar('puppet_agent::username', 'forge-key')
+    $download_password = unwrap(getvar('puppet_agent::password'))
+
+    $response_file = "${local_package_file_path}.response"
+    $netrc_file = "${facts['env_temp_variable']}/.netrc"
+    file { $netrc_file:
+      ensure    => file,
+      content   => "machine artifacts-puppetcore.puppet.com\nlogin ${download_username}\npassword ${download_password}\n",
+      mode      => '0600',
+      show_diff => false,
+    }
+
+    $curl_command = "curl -1 -sL --netrc-file '${netrc_file}' -w '%{http_code}' -o '${local_package_file_path}' '${source}' > '${response_file}'"
+    exec { 'Download Puppet Agent for Darwin':
+      command => $curl_command,
+      creates => $local_package_file_path,
+      path    => ['/usr/bin', '/usr/sbin', '/bin', '/sbin'],
+    }
+
+    exec { 'Remove .netrc file':
+      command => "rm -f '${netrc_file}'",
+      path    => ['/usr/bin', '/bin'],
+      onlyif  => "test -f '${netrc_file}'",
+      require => Exec['Download Puppet Agent for Darwin'],
+    }
+    #
+    # TODO: This is a temporary workaround to get the HTTP response code from the curl command.
+    #       For now just outputting the response is good enough.
+    #       We need to find a way to interspect this value and fail the catalog if the response
+    #       code is not 200, and then logging the output wont be as important.
+    #
+    exec { 'Read HTTP Response Code':
+      command   => "cat '${response_file}'",
+      path      => ['/usr/bin', '/bin'],
+      onlyif    => "test -f '${response_file}'",
+      logoutput => true,
+      require   => Exec['Download Puppet Agent for Darwin'],
+    }
   } else {
     file { $local_package_file_path:
       ensure  => file,
diff --git a/tasks/install_shell.sh b/tasks/install_shell.sh
index f5c64a8e..a448aad2 100644
--- a/tasks/install_shell.sh
+++ b/tasks/install_shell.sh
@@ -26,6 +26,14 @@ warn () {
     log "WARN: ${1}"
 }
 
+url_parameters() {
+  if [[ "$version" =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)\.g([a-f0-9]+)$ ]]; then
+    echo "&dev=true"
+  else
+    echo ""
+  fi
+}
+
 critical () {
     log "CRIT: ${1}"
 }
@@ -162,10 +170,18 @@ fi
 if [ -n "$PT_mac_source" ]; then
   mac_source=$PT_mac_source
 else
-  if [ "$nightly" = true ]; then
-    mac_source='http://nightlies.puppet.com/downloads'
-  else
-    mac_source='http://downloads.puppet.com'
+ if [[ "$PT_collection" =~ core ]]; then
+    if [ -z "$password" ]; then
+      echo "A password parameter is required to install with puppetcore"
+      exit 1
+    fi
+  mac_source='https://artifacts-puppetcore.puppet.com/v1/download'
+ else
+    if [ "$nightly" = true ]; then
+      mac_source='http://nightlies.puppet.com/downloads'
+    else
+      mac_source='http://downloads.puppet.com'
+    fi
   fi
 fi
 
@@ -421,7 +437,11 @@ do_wget() {
 # do_curl URL FILENAME
 do_curl() {
   info "Trying curl..."
-  run_cmd "curl -1 -sL -D $tmp_stderr '$1' > '$2'"
+  if [[ -n "$3" && -n "$4" ]]; then
+    run_cmd "curl -1 -sL -u '$3:$4' -D $tmp_stderr '$1' > '$2'"
+  else
+    run_cmd "curl -1 -sL -D $tmp_stderr '$1' > '$2'"
+  fi
   rc=$?
 
   # check for 404
@@ -431,6 +451,12 @@ do_curl() {
     unable_to_retrieve_package
   fi
 
+  grep "HTTP/2 401" $tmp_stderr 2>&1 >/dev/null
+  if test $? -eq 0; then
+    critical "ERROR 401: Unauthorized access"
+    unable_to_retrieve_package
+  fi
+
   # check for bad return status or empty output
   if test $rc -ne 0 || test ! -s "$2"; then
     capture_tmp_stderr "curl"
@@ -557,7 +583,11 @@ do_download() {
   fi
 
   if exists curl; then
-    do_curl $1 $2 && return 0
+    if [[ "$collection" =~ core ]]; then
+      do_curl $1 $2 "$username" "$password" && return 0
+    else
+      do_curl $1 $2 && return 0
+    fi
   fi
 
   if exists fetch; then
@@ -810,19 +840,29 @@ case $platform in
     download_url="${apt_source}/${filename}"
     ;;
   "mac_os_x")
-    info "Mac platform! Lets get you a DMG..."
-    filetype="dmg"
+    arch="x86_64"
+    if [[ $(uname -p) == "arm" ]]; then
+        arch="arm64"
+    fi
     if test "$version" = "latest"; then
       filename="puppet-agent-latest.dmg"
     else
       filename="puppet-agent-${version}-1.osx${platform_version}.dmg"
     fi
+    info "Mac platform! Lets get you a DMG...!!"
+    if [[ "$collection" =~ core ]]; then
+      if [ -z "$password" ]; then
+      echo "A password parameter is required to install"
+      exit 1
+      fi
 
-    arch="x86_64"
-    if [[ $(uname -p) == "arm" ]]; then
-        arch="arm64"
+      # Call the url_parameters function to append to the download_url
+      download_url="${mac_source}/?version=${version}&os_name=osx&os_version=${platform_version}&os_arch=${arch}&fips=false$(url_parameters)"
+    else
+      download_url="${mac_source}/mac/${collection}/${platform_version}/${arch}/${filename}"
     fi
-    download_url="${mac_source}/mac/${collection}/${platform_version}/${arch}/${filename}"
+    filetype="dmg"
+
     ;;
   *)
     critical "Sorry $platform is not supported yet!"