diff --git a/bin/install b/bin/install
index 21ac644..9cfa085 100755
--- a/bin/install
+++ b/bin/install
@@ -1,12 +1,71 @@
 #!/usr/bin/env bash
 
+export KERL_BUILD_DOCS="${KERL_BUILD_DOCS:-yes}"
+
 set -e
 
-# shellcheck source=../bin/utils.sh
-source "$(dirname "$0")/utils.sh"
+
+# shellcheck source=../lib/utils.sh
+source "$(dirname $0)/../lib/utils.sh"
 
 install_erlang() {
   ensure_kerl_setup
+
+
+  if [ -z "$KERL_CONFIGURE_OPTIONS" ]; then 
+    echo "KERL_CONFIGURE_OPTIONS is not set, will use default settings."
+
+    export KERL_CONFIGURE_OPTIONS="--disable-debug --disable-silent-rules --enable-dynamic-ssl-lib"
+    export KERL_CONFIGURE_OPTIONS="$KERL_CONFIGURE_OPTIONS --enable-hipe --enable-sctp --enable-shared-zlib --enable-smp-support"
+    export KERL_CONFIGURE_OPTIONS="$KERL_CONFIGURE_OPTIONS --enable-threads --enable-wx --without-javac"
+
+    if [ "$(uname -s)" = "Darwin" ]; then
+      echo "Using Homebrew for dependencies."
+      if [ -x "$(command -v brew)" ]; then
+        if [ ! -d "$(brew --prefix autoconf)" ]; then
+          echo "Missing autoconf from Homebrew"
+          echo "brew install autoconf"
+          exit 1
+        fi
+        if [ ! -d "$(brew --prefix libtool)" ]; then
+          echo "Missing libtool from Homebrew"
+          echo "brew install libtool"
+          exit 1
+        fi
+        if [ ! -d "$(brew --prefix openssl)" ]; then
+          echo "Missing openssl from Homebrew"
+          echo "brew install openssl"
+          exit 1
+        fi
+        if [ ! -d "$(brew --prefix wxmac)" ]; then
+          echo "Missing wxmac from Homebrew"
+          echo "brew install wxmac"
+          exit 1
+        fi
+        export KERL_CONFIGURE_OPTIONS="$KERL_CONFIGURE_OPTIONS --with-ssl=$(brew --prefix openssl) --enable-darwin-64bit --enable-kernel-poll --with-dynamic-trace=dtrace"  
+      else
+        echo "Homebrew is not installed or in PATH"
+        echo "To install without Homebrew, set your own KERL_CONFIGURE_OPTIONS"
+      fi
+    fi
+  fi
+  
+  
+
+
+
+
+  echo "Installing Erlang $ASDF_INSTALL_VERSION"
+  if [ "$KERL_BUILD_DOCS" != "yes" ]; then
+    unset KERL_BUILD_DOCS
+    echo "without documentation"
+  else
+    echo "With documentation"
+  fi
+  echo "With KERL_CONFIGURE_OPTIONS set to: "
+  echo "$KERL_CONFIGURE_OPTIONS"
+  echo "---"
+
   local asdf_activation_version
   local build_name
 
@@ -17,6 +76,7 @@ install_erlang() {
   $(kerl_path) delete installation "$build_name" || true
   $(kerl_path) delete build "$build_name" || true
 
+
   if [ "$ASDF_INSTALL_TYPE" = "ref" ]; then
     asdf_activation_version="$ASDF_INSTALL_TYPE:$ASDF_INSTALL_VERSION"
     $(kerl_path) build git "${OTP_GITHUB_URL:-https://github.com/erlang/otp.git}" "$ASDF_INSTALL_VERSION" "$build_name"
diff --git a/bin/list-all b/bin/list-all
index fb4140f..1e25e09 100755
--- a/bin/list-all
+++ b/bin/list-all
@@ -1,10 +1,11 @@
 #!/usr/bin/env bash
 
-source "$(dirname $0)/utils.sh"
+# shellcheck source=../lib/utils.sh
+source "$(dirname $0)/../lib/utils.sh"
+
 
 list_all() {
     ensure_kerl_setup
-
     echo "$("$(kerl_path)" list releases | sed -e 's:Run.*::' | tr '\n' ' ')"
 }
 
diff --git a/bin/uninstall b/bin/uninstall
index f32b02a..03f521f 100755
--- a/bin/uninstall
+++ b/bin/uninstall
@@ -2,7 +2,8 @@
 
 set -e
 
-source "$(dirname $0)/utils.sh"
+# shellcheck source=../lib/utils.sh
+source "$(dirname $0)/../lib/utils.sh"
 
 ensure_kerl_setup
 
diff --git a/bin/utils.sh b/bin/utils.sh
deleted file mode 100755
index 423c9db..0000000
--- a/bin/utils.sh
+++ /dev/null
@@ -1,45 +0,0 @@
-KERL_VERSION="2.1.0"
-
-ensure_kerl_setup() {
-  set_kerl_env
-  ensure_kerl_installed
-  update_available_versions
-}
-
-ensure_kerl_installed() {
-    if [ ! -f "$(kerl_path)" ]; then
-        download_kerl
-    elif [ "$("$(kerl_path)" version)" != "$KERL_VERSION" ]; then
-        # If the kerl file already exists and the version does not match, remove
-        # it and download the correct version
-        rm "$(kerl_path)"
-        download_kerl
-    fi
-}
-
-download_kerl() {
-    # Print to stderr so asdf doesn't assume this string is a list of versions
-    echo "Downloading kerl..." >&2
-
-    local kerl_url="https://raw.githubusercontent.com/kerl/kerl/${KERL_VERSION}/kerl"
-
-    curl -Lso "$(kerl_path)" $kerl_url
-    chmod +x "$(kerl_path)"
-}
-
-kerl_path() {
-    echo "$(dirname "$(dirname $0)")/kerl"
-}
-
-set_kerl_env() {
-    local kerl_home
-    kerl_home="$(dirname "$(dirname "$0")")/kerl-home"
-    mkdir -p "$kerl_home"
-    export KERL_BASE_DIR="$kerl_home"
-    export KERL_BUILD_BACKEND="git"
-    export KERL_CONFIG="$kerl_home/.kerlrc"
-}
-
-update_available_versions() {
-    "$(kerl_path)" update releases > /dev/null
-}
diff --git a/lib/utils.sh b/lib/utils.sh
new file mode 100755
index 0000000..c9f9409
--- /dev/null
+++ b/lib/utils.sh
@@ -0,0 +1,74 @@
+KERL_VERSION="${ASDF_KERL_VERSION:-2.1.0}"
+
+
+echoerr() {
+  >&2 echo -e "\033[0;31m$1\033[0m"
+}
+
+ensure_kerl_setup() {
+  export KERL_BASE_DIR="$(kerl_dir)"
+  export KERL_CONFIG="$(kerl_dir)/kerlrc"
+  #export KERL_BUILD_BACKEND="git"
+  ensure_kerl_installed
+}
+
+ensure_kerl_installed() {
+  # If kerl exists
+  if [ -x "$(kerl_path)" ]; then
+    # But was passed an expected version
+    if [ -n "${ASDF_KERL_VERSION:-}" ]; then
+      current_kerl_version="$("$(kerl_path)" version)"
+      # Check if expected version matches current version
+      if [ "$current_kerl_version" != "$KERL_VERSION" ]; then
+        # If not, reinstall with ASDF_KERL_VERSION
+        download_kerl
+      fi
+    fi
+  else
+    # kerl does not exist, so install using default value in KERL_VERSION
+    download_kerl
+  fi
+}
+
+
+
+download_kerl() {
+  # Remove directory in case it still exists from last download
+  rm -rf "$(kerl_source_dir)"
+  rm -rf "$(kerl_dir)"
+
+  # Print to stderr so asdf doesn't assume this string is a list of versions
+  echoerr "Downloading kerl $KERL_INSTALL_VERSION"
+
+  # Clone down and checkout the correct kerl version
+  git clone https://github.com/kerl/kerl.git "$(kerl_source_dir)" --quiet
+  (cd "$(kerl_source_dir)"; git checkout $KERL_INSTALL_VERSION --quiet;)
+
+  mkdir -p "$(kerl_dir)/bin"
+  mv "$(kerl_source_dir)/kerl" "$(kerl_path)"
+  chmod +x "$(kerl_path)"
+
+  rm -rf "$(kerl_source_dir)"
+}
+
+asdf_erlang_plugin_path() {
+  echo "$(dirname "$(dirname "$0")")"
+}
+
+kerl_dir() {
+  echo "$(asdf_erlang_plugin_path)/kerl"
+}
+
+kerl_source_dir() {
+  echo "$(asdf_erlang_plugin_path)/kerl-install-source"
+}
+
+
+kerl_path() {
+  #Check if kerl exists without an expected version
+  if [ -x "$(command -v kerl)" ] && [ -z "${ASDF_KERL_VERSION:-}" ]; then
+    echo "$(command -v kerl)"
+  else
+    echo "$(kerl_dir)/bin/kerl"
+  fi
+}