diff --git a/assets/02-install-base-packages.macos.sh b/assets/02-install-base-packages.macos.sh
index f1fa915..e255ff0 100755
--- a/assets/02-install-base-packages.macos.sh
+++ b/assets/02-install-base-packages.macos.sh
@@ -16,15 +16,15 @@ set -e
 
 function main {
 
+  # Customise brew execution
+  export HOMEBREW_NO_AUTO_UPDATE=1
+  is-arg-true "$REINSTALL" && export install="reinstall --force" || export install="install"
+
   install
 }
 
 function install {
 
-  # Customise brew execution
-  HOMEBREW_NO_AUTO_UPDATE=1
-  is-arg-true "$REINSTALL" && install="reinstall --force" || install="install"
-
   # Install packages for consistent GNU/Linux-like CLI experience on macOS
   brew $install \
     ack \
@@ -32,9 +32,11 @@ function install {
     bash \
     binutils \
     coreutils \
+    ctop \
     curl \
     diff-so-fancy \
     diffutils \
+    dive \
     findutils \
     gawk \
     git \
@@ -52,10 +54,12 @@ function install {
     jq \
     less \
     make \
+    neovim \
     openssl \
     readline \
     ripgrep \
     screen \
+    shellcheck \
     tmux \
     tree \
     watch \
diff --git a/assets/03-install-developer-tools.macos.sh b/assets/03-install-developer-tools.macos.sh
index 5fa8fdc..98c4ba2 100755
--- a/assets/03-install-developer-tools.macos.sh
+++ b/assets/03-install-developer-tools.macos.sh
@@ -16,10 +16,22 @@ set -e
 
 function main {
 
+  # Customise brew execution
+  export HOMEBREW_NO_AUTO_UPDATE=1
+  is-arg-true "$REINSTALL" && export install="reinstall --force" || export install="install"
+
   config-zsh
   config-git
-  install-apps
-  install-tech-terraform
+  install-tools-and-apps
+
+  tech-terraform-install
+  tech-terraform-configure
+  tech-python-install
+  tech-python-configure
+  tech-npm-install
+  tech-npm-configure
+  tech-golang-install
+  tech-golang-configure
 }
 
 function config-zsh {
@@ -28,11 +40,9 @@ function config-zsh {
   cat /etc/shells | grep $(brew --prefix)/bin/zsh > /dev/null 2>&1 || sudo sh -c "echo $(brew --prefix)/bin/zsh >> /etc/shells"
   chsh -s $(brew --prefix)/bin/zsh
   # Install oh-my-zsh
-  if (is-arg-true "$REINSTALL") then
-    rm -rf "$HOME/.oh-my-zsh"
-  fi
+  is-arg-true "$REINSTALL" && rm -rf "$HOME/.oh-my-zsh" ||:
+  sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended ||:
   # Install powerlevel10k theme for zsh
-  sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)" "" --unattended ||:
   if [ -d "$HOME/.oh-my-zsh/custom/themes/powerlevel10k" ]; then
     (
       cd "$HOME/.oh-my-zsh/custom/themes/powerlevel10k"
@@ -41,34 +51,21 @@ function config-zsh {
   else
     git clone --depth=1 https://github.com/romkatv/powerlevel10k.git "$HOME/.oh-my-zsh/custom/themes/powerlevel10k" ||:
   fi
-  # Install vscode extensions
-  is-arg-true "$REINSTALL" && vs_ext_force="--force" || vs_ext_force=""
-  for file in $(cat "${CHEZMOI_SOURCE_DIR:-$(chezmoi source-path)}/.vscode/extensions.json" | jq '.recommendations[]' --raw-output); do
-    code $vs_ext_force --install-extension $file ||:
-  done
-  # Install iTerm theme
-  defaults import \
-    com.googlecode.iterm2 \
-    "${CHEZMOI_SOURCE_DIR:-$(chezmoi source-path)}/assets/iterm2/settings.xml"
 }
 
 function config-git {
 
-  mkdir -p ~/.gnupg
-  sed -i '/^pinentry-program/d' ~/.gnupg/gpg-agent.conf 2>/dev/null ||:
-  echo "pinentry-program $(whereis -q pinentry)" >> ~/.gnupg/gpg-agent.conf
-  sed -i '/^default-cache-ttl/d' ~/.gnupg/gpg-agent.conf
-  echo "default-cache-ttl 10800" >> ~/.gnupg/gpg-agent.conf
-  sed -i '/^max-cache-ttl/d' ~/.gnupg/gpg-agent.conf
-  echo "max-cache-ttl 10800" >> ~/.gnupg/gpg-agent.conf
+  mkdir -p "$HOME/.gnupg"
+  sed -i '/^pinentry-program/d' "$HOME/.gnupg/gpg-agent.conf" 2>/dev/null ||:
+  echo "pinentry-program $(whereis -q pinentry)" >> "$HOME/.gnupg/gpg-agent.conf"
+  sed -i '/^default-cache-ttl/d' "$HOME/.gnupg/gpg-agent.conf"
+  echo "default-cache-ttl 10800" >> "$HOME/.gnupg/gpg-agent.conf"
+  sed -i '/^max-cache-ttl/d' "$HOME/.gnupg/gpg-agent.conf"
+  echo "max-cache-ttl 10800" >> "$HOME/.gnupg/gpg-agent.conf"
   gpgconf --kill gpg-agent
 }
 
-function install-apps {
-
-  # Customise brew execution
-  HOMEBREW_NO_AUTO_UPDATE=1
-  is-arg-true "$REINSTALL" && install="reinstall --force" || install="install"
+function install-tools-and-apps {
 
   # Install developer apps
   brew $install \
@@ -87,19 +84,102 @@ function install-apps {
     brave-browser \
     docker \
     firefox \
+    font-hack-nerd-font \
     google-chrome \
     ||:
+
+  # Install vscode extensions
+  is-arg-true "$REINSTALL" && vs_ext_force="--force" || vs_ext_force=""
+  for file in $(cat "${CHEZMOI_SOURCE_DIR:-$(chezmoi source-path)}/.vscode/extensions.json" | jq '.recommendations[]' --raw-output); do
+    code $vs_ext_force --install-extension $file ||:
+  done
+  # Install iterm theme
+  defaults import \
+    com.googlecode.iterm2 \
+    "${CHEZMOI_SOURCE_DIR:-$(chezmoi source-path)}/assets/iterm2/settings.xml"
+
+  # Install asdf, SEE: https://asdf-vm.com/
+  if [ -d "$HOME/.asdf" ]; then
+    (
+      cd "$HOME/.asdf"
+      git pull
+    )
+  else
+    git clone --depth=1 https://github.com/asdf-vm/asdf.git "$HOME/.asdf" ||:
+  fi
+  asdf plugin update --all
 }
 
-function install-tech-terraform() {
+function tech-terraform-install() {
 
-  # Customise brew execution
-  HOMEBREW_NO_AUTO_UPDATE=1
-  is-arg-true "$REINSTALL" && install="reinstall --force" || install="install"
+  asdf plugin add terraform ||:
+  asdf install terraform latest
+  asdf global terraform latest
+}
 
-  # Install developer apps
-  brew $install \
-    warrensbox/tap/tfswitch
+function tech-terraform-configure() {
+
+  :
+  # TODO: Install dev tools for terraform
+  # brew $install \
+  #   warrensbox/tap/tfswitch
+}
+
+function tech-python-install() {
+
+  asdf plugin add python ||:
+  asdf install python latest
+  asdf global python latest
+}
+
+function tech-python-configure() {
+
+  python -m ensurepip
+  python -m pip install --upgrade pip
+
+  # TODO: Install dev tools for python
+  # brew $install \
+  #   pyenv \
+  #   pyenv-virtualenv \
+  #   python \
+  #   virtualenv \
+  #   ||:
+  # python -m pip install \
+  #   bandit \
+  #   black \
+  #   bpython \
+  #   coverage \
+  #   flake8 \
+  #   mypy \
+  #   prospector \
+  #   pycodestyle \
+  #   pylama \
+  #   pylint \
+  #   pytest
+}
+
+function tech-npm-install() {
+
+  asdf plugin add nodejs ||:
+  asdf install nodejs latest
+  asdf global nodejs latest
+}
+
+function tech-npm-configure() {
+
+  npm install --global yarn
+}
+
+function tech-golang-install() {
+
+  asdf plugin add golang ||:
+  asdf install golang latest
+  asdf global golang latest
+}
+
+function tech-golang-configure() {
+
+  :
 }
 
 # ==============================================================================
diff --git a/assets/04-install-corporate-apps.macos.sh b/assets/04-install-corporate-apps.macos.sh
index 41740b5..5067f6c 100755
--- a/assets/04-install-corporate-apps.macos.sh
+++ b/assets/04-install-corporate-apps.macos.sh
@@ -16,15 +16,15 @@ set -e
 
 function main {
 
+  # Customise brew execution
+  export HOMEBREW_NO_AUTO_UPDATE=1
+  is-arg-true "$REINSTALL" && export install="reinstall --force" || export install="install"
+
   install
 }
 
 function install {
 
-  # Customise brew execution
-  HOMEBREW_NO_AUTO_UPDATE=1
-  is-arg-true "$REINSTALL" && install="reinstall --force" || install="install"
-
   # Install developer apps
   brew $install \
     avast-security \
diff --git a/assets/05-install-user-apps.macos.sh b/assets/05-install-user-apps.macos.sh
index 116ec97..2d38a29 100755
--- a/assets/05-install-user-apps.macos.sh
+++ b/assets/05-install-user-apps.macos.sh
@@ -16,15 +16,15 @@ set -e
 
 function main {
 
+  # Customise brew execution
+  export HOMEBREW_NO_AUTO_UPDATE=1
+  is-arg-true "$REINSTALL" && export install="reinstall --force" || export install="install"
+
   install
 }
 
 function install {
 
-  # Customise brew execution
-  HOMEBREW_NO_AUTO_UPDATE=1
-  is-arg-true "$REINSTALL" && install="reinstall --force" || install="install"
-
   # Install developer apps
   brew $install \
     alt-tab \
diff --git a/assets/vscode/settings.json b/assets/vscode/settings.json
index 9b8ecfb..a02a85d 100644
--- a/assets/vscode/settings.json
+++ b/assets/vscode/settings.json
@@ -1,5 +1,7 @@
 {
+  //
   // Extensions settings
+  //
   "cSpell.language": "en,en-GB",
   "cSpell.enableFiletypes": [
     "dockerfile",
@@ -10,7 +12,9 @@
   ],
   "redhat.telemetry.enabled": false,
   "todohighlight.keywords": ["SEE:"],
+  //
   // General project settings
+  //
   "breadcrumbs.enabled": true,
   "editor.autoIndent": "full",
   "editor.bracketPairColorization.enabled": true,
@@ -28,6 +32,20 @@
   "files.insertFinalNewline": true,
   "files.trimFinalNewlines": true,
   "files.trimTrailingWhitespace": true,
+  "files.watcherExclude": {
+    "**/.git": true,
+    "**/log": true,
+    "**/node_modules": true,
+    "**/target": true,
+    "**/tmp": true
+  },
+  "search.exclude": {
+    "**/.git": true,
+    "**/log": true,
+    "**/node_modules": true,
+    "**/target": true,
+    "**/tmp": true
+  },
   "terminal.integrated.fontFamily": "Hack Nerd Font",
   "window.newWindowDimensions": "maximized",
   "window.title": "${activeEditorMedium}${separator}${rootName}${separator}${rootPath}",
@@ -36,6 +54,9 @@
   "workbench.editor.enablePreview": true,
   "workbench.iconTheme": "vscode-icons",
   "workbench.tree.indent": 20,
+  //
+  // Files settings
+  //
   "[jsonc]": {
     "editor.defaultFormatter": "esbenp.prettier-vscode"
   }
diff --git a/dot_path.tmpl b/dot_path.tmpl
index 389aee6..bf178d1 100644
--- a/dot_path.tmpl
+++ b/dot_path.tmpl
@@ -1,10 +1,12 @@
-{{- if eq .chezmoi.os "darwin" -}}
-path_homebrew="/opt/homebrew/opt/coreutils/libexec/gnubin:/opt/homebrew/opt/curl/bin:/opt/homebrew/opt/findutils/libexec/gnubin:/opt/homebrew/opt/gnu-getopt/bin:/opt/homebrew/opt/gnu-sed/libexec/gnubin:/opt/homebrew/opt/gnu-tar/libexec/gnubin:/opt/homebrew/opt/grep/libexec/gnubin:/opt/homebrew/opt/make/libexec/gnubin:/opt/homebrew/opt/openssl/bin:/usr/local/opt/coreutils/libexec/gnubin:/usr/local/opt/curl/bin:/usr/local/opt/findutils/libexec/gnubin:/usr/local/opt/gnu-getopt/bin:/usr/local/opt/gnu-sed/libexec/gnubin:/usr/local/opt/gnu-tar/libexec/gnubin:/usr/local/opt/grep/libexec/gnubin:/usr/local/opt/make/libexec/gnubin:/usr/local/opt/openssl/bin:/opt/homebrew/bin:/usr/local/Homebrew/bin"
+path_asdf="$HOME/.asdf/shims:$HOME/.asdf/bin"
 path_docker="$HOME/.docker/bin"
-path_packages="$path_homebrew:$path_docker"
+path_default="/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin"
+
+{{ if eq .chezmoi.os "darwin" -}}
+path_homebrew="/opt/homebrew/opt/coreutils/libexec/gnubin:/opt/homebrew/opt/curl/bin:/opt/homebrew/opt/findutils/libexec/gnubin:/opt/homebrew/opt/gnu-getopt/bin:/opt/homebrew/opt/gnu-sed/libexec/gnubin:/opt/homebrew/opt/gnu-tar/libexec/gnubin:/opt/homebrew/opt/grep/libexec/gnubin:/opt/homebrew/opt/make/libexec/gnubin:/opt/homebrew/opt/openssl/bin:/usr/local/opt/coreutils/libexec/gnubin:/usr/local/opt/curl/bin:/usr/local/opt/findutils/libexec/gnubin:/usr/local/opt/gnu-getopt/bin:/usr/local/opt/gnu-sed/libexec/gnubin:/usr/local/opt/gnu-tar/libexec/gnubin:/usr/local/opt/grep/libexec/gnubin:/usr/local/opt/make/libexec/gnubin:/usr/local/opt/openssl/bin:/opt/homebrew/bin:/usr/local/Homebrew/bin"
+path_packages="$path_asdf:$path_docker:$path_homebrew"
 {{- else if eq .chezmoi.os "linux" }}
-path_packages=""
+path_packages="$path_asdf:$path_docker"
 {{- end }}
-path_default="/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin"
 
 export PATH="$HOME/bin:$HOME/.local/bin:$path_packages:$path_default"
diff --git a/dot_zshrc.tmpl b/dot_zshrc.tmpl
index 945b9a2..4b07b48 100644
--- a/dot_zshrc.tmpl
+++ b/dot_zshrc.tmpl
@@ -1,105 +1,4 @@
-# If you come from bash you might have to change your $PATH.
-# export PATH=$HOME/bin:/usr/local/bin:$PATH
-
-# Path to your oh-my-zsh installation.
-#export ZSH="$HOME/.oh-my-zsh"
-
-# Set name of the theme to load --- if set to "random", it will
-# load a random theme each time oh-my-zsh is loaded, in which case,
-# to know which specific one was loaded, run: echo $RANDOM_THEME
-# See https://github.com/ohmyzsh/ohmyzsh/wiki/Themes
-#ZSH_THEME="robbyrussell"
-
-# Set list of themes to pick from when loading at random
-# Setting this variable when ZSH_THEME=random will cause zsh to load
-# a theme from this variable instead of looking in $ZSH/themes/
-# If set to an empty array, this variable will have no effect.
-# ZSH_THEME_RANDOM_CANDIDATES=( "robbyrussell" "agnoster" )
-
-# Uncomment the following line to use case-sensitive completion.
-# CASE_SENSITIVE="true"
-
-# Uncomment the following line to use hyphen-insensitive completion.
-# Case-sensitive completion must be off. _ and - will be interchangeable.
-# HYPHEN_INSENSITIVE="true"
-
-# Uncomment one of the following lines to change the auto-update behavior
-# zstyle ':omz:update' mode disabled  # disable automatic updates
-# zstyle ':omz:update' mode auto      # update automatically without asking
-# zstyle ':omz:update' mode reminder  # just remind me to update when it's time
-
-# Uncomment the following line to change how often to auto-update (in days).
-# zstyle ':omz:update' frequency 13
-
-# Uncomment the following line if pasting URLs and other text is messed up.
-# DISABLE_MAGIC_FUNCTIONS="true"
-
-# Uncomment the following line to disable colors in ls.
-# DISABLE_LS_COLORS="true"
-
-# Uncomment the following line to disable auto-setting terminal title.
-# DISABLE_AUTO_TITLE="true"
-
-# Uncomment the following line to enable command auto-correction.
-# ENABLE_CORRECTION="true"
-
-# Uncomment the following line to display red dots whilst waiting for completion.
-# You can also set it to another string to have that shown instead of the default red dots.
-# e.g. COMPLETION_WAITING_DOTS="%F{yellow}waiting...%f"
-# Caution: this setting can cause issues with multiline prompts in zsh < 5.7.1 (see #5765)
-# COMPLETION_WAITING_DOTS="true"
-
-# Uncomment the following line if you want to disable marking untracked files
-# under VCS as dirty. This makes repository status check for large repositories
-# much, much faster.
-# DISABLE_UNTRACKED_FILES_DIRTY="true"
-
-# Uncomment the following line if you want to change the command execution time
-# stamp shown in the history command output.
-# You can set one of the optional three formats:
-# "mm/dd/yyyy"|"dd.mm.yyyy"|"yyyy-mm-dd"
-# or set a custom format using the strftime function format specifications,
-# see 'man strftime' for details.
-# HIST_STAMPS="mm/dd/yyyy"
-
-# Would you like to use another custom folder than $ZSH/custom?
-# ZSH_CUSTOM=/path/to/new-custom-folder
-
-# Which plugins would you like to load?
-# Standard plugins can be found in $ZSH/plugins/
-# Custom plugins may be added to $ZSH_CUSTOM/plugins/
-# Example format: plugins=(rails git textmate ruby lighthouse)
-# Add wisely, as too many plugins slow down shell startup.
-#plugins=(git)
-
-#source $ZSH/oh-my-zsh.sh
-
-# User configuration
-
-# export MANPATH="/usr/local/man:$MANPATH"
-
-# You may need to manually set your language environment
-# export LANG=en_US.UTF-8
-
-# Preferred editor for local and remote sessions
-# if [[ -n $SSH_CONNECTION ]]; then
-#   export EDITOR='vim'
-# else
-#   export EDITOR='mvim'
-# fi
-
-# Compilation flags
-# export ARCHFLAGS="-arch x86_64"
-
-# Set personal aliases, overriding those provided by oh-my-zsh libs,
-# plugins, and themes. Aliases can be placed here, though oh-my-zsh
-# users are encouraged to define aliases within the ZSH_CUSTOM folder.
-# For a full list of active aliases, run `alias`.
-#
-# Example aliases
-# alias zshconfig="mate ~/.zshrc"
-# alias ohmyzsh="mate ~/.oh-my-zsh"
-
+# Enable oh-my-zsh, SEE: https://github.com/ohmyzsh/ohmyzsh
 export ZSH="$HOME/.oh-my-zsh"
 ZSH_THEME=powerlevel10k/powerlevel10k
 plugins=(
@@ -113,12 +12,15 @@ plugins=(
 )
 source "$ZSH/oh-my-zsh.sh"
 source "$HOME/.p10k.zsh"
-
-# Enable Powerlevel10k instant prompt
 if [[ -r "${XDG_CACHE_HOME:-$HOME/.cache}/p10k-instant-prompt-${(%):-%n}.zsh" ]]; then
   source "${XDG_CACHE_HOME:-$HOME/.cache}/p10k-instant-prompt-${(%):-%n}.zsh"
 fi
 
+# Enable asdf, SEE: https://github.com/asdf-vm/asdf
+source "$HOME/.asdf/asdf.sh"
+source "$HOME/.asdf/completions/asdf.bash"
+
+# Load dotfiles
 eval $(source "$HOME/.local/bin/detect-operating-system.sh")
 for file in $HOME/.{path,exports,functions,aliases,extra,$SYSTEM_DIST,custom}; do
   [ -f "$file" ] && source "$file"
diff --git a/project.code-workspace b/project.code-workspace
index 7d88b57..3175eea 100644
--- a/project.code-workspace
+++ b/project.code-workspace
@@ -26,7 +26,8 @@
       "dot_screenrc": "properties",
       "dot_ubuntu": "shellscript",
       "dot_wgetrc": "properties",
-      "dot_zshrc.tmpl": "shellscript"
+      "dot_zshrc.tmpl": "shellscript",
+      "run_onchange_setup.sh.tmpl": "shellscript"
     }
   }
 }
diff --git a/run_onchange_setup.sh.tmpl b/run_onchange_setup.sh.tmpl
index df7d59c..cde9aa1 100644
--- a/run_onchange_setup.sh.tmpl
+++ b/run_onchange_setup.sh.tmpl
@@ -2,8 +2,30 @@
 
 set -e
 
-mkdir -p $HOME/{.aws,.azure,.cache,.config,.docker,.gnupg,.kube,.local,.ssh,bin,Projects}
-chmod 700 $HOME/{.aws,.azure,.cache,.config,.docker,.gnupg,.kube,.local,.ssh,bin,Projects}
+mkdir -p \
+  $HOME/.aws \
+  $HOME/.azure \
+  $HOME/.cache \
+  $HOME/.config \
+  $HOME/.docker \
+  $HOME/.gnupg \
+  $HOME/.kube \
+  $HOME/.local \
+  $HOME/.ssh \
+  $HOME/bin \
+  $HOME/Projects
+chmod 700 \
+  $HOME/.aws \
+  $HOME/.azure \
+  $HOME/.cache \
+  $HOME/.config \
+  $HOME/.docker \
+  $HOME/.gnupg \
+  $HOME/.kube \
+  $HOME/.local \
+  $HOME/.ssh \
+  $HOME/bin \
+  $HOME/Projects
 
 eval $(source "$HOME/.local/bin/detect-operating-system.sh")
 source "$HOME/.path"