diff --git a/CHANGELOG.md b/CHANGELOG.md
index d1bd123..9e12586 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 * Add unit tests (GitHub actions) for macOS, Homebrew and install.sh
 * Add build status badge
+* Rewrite install.sh for PHP 8.3, use variables instead of hardcoded paths and versions
 
 ### 1.0.7: 2023-05-12
 
diff --git a/install.sh b/install.sh
index 82404a9..7106173 100644
--- a/install.sh
+++ b/install.sh
@@ -1,90 +1,125 @@
 # Crucial paths
 HOMEBREW_PATH='/opt/homebrew'
+PHP_VERSION='8.3'
 
 # Helper variables
-txtbold=$(tput bold)
-boldgreen=${txtbold}$(tput setaf 2)
-yellow=$(tput setaf 3)
-green=$(tput setaf 2)
-txtreset=$(tput sgr0)
+TXTBOLD=$(tput bold)
+BOLDGREEN=${TXTBOLD}$(tput setaf 2)
+YELLOW=$(tput setaf 3)
+GREEN=$(tput setaf 2)
+TXTRESET=$(tput sgr0)
 
-echo "${yellow}Getting dependencies.${txtreset}"
+echo "${YELLOW}Getting dependencies.${TXTRESET}"
+
+# Attempt to install Xcode Command Line Tools
 xcode-select --install
+
+# Get Homebrew
 /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+
+# Inspect Homebrew installation
 brew doctor
+
+# Update Homebrew
 brew update && brew upgrade
-echo "${boldgreen}Dependencies installed and up to date.${txtreset}"
-echo "${yellow}Installing nginx.${txtreset}"
+echo "${BOLDGREEN}Dependencies installed and up to date.${TXTRESET}"
+
+# Install the latest nginx version
+echo "${YELLOW}Installing nginx.${TXTRESET}"
 brew tap homebrew/nginx
 brew install nginx
 sudo brew services start nginx
 curl -IL http://127.0.0.1:80
-echo "${boldgreen}nginx installed and running.${txtreset}"
-echo "${yellow}Setting up nginx.${txtreset}"
-sudo ln -sfnv "${HOMEBREW_PATH}/etc/nginx" "/etc/nginx"
-sudo mkdir -p "${HOMEBREW_PATH}/etc/nginx/global"
-sudo mkdir -p "${HOMEBREW_PATH}/etc/nginx/sites-enabled"
-sudo mkdir -p "${HOMEBREW_PATH}/etc/nginx/sites-available"
-sudo mkdir -p "${HOMEBREW_PATH}/etc/nginx/global"
-sudo chmod -R 775 "${HOMEBREW_PATH}/etc/nginx/global"
-sudo chmod -R 775 "${HOMEBREW_PATH}/etc/nginx/sites-enabled"
-sudo chmod -R 775 "${HOMEBREW_PATH}/etc/nginx/sites-available"
-sudo chmod -R 775 "${HOMEBREW_PATH}/etc/nginx/global"
+echo "${BOLDGREEN}nginx installed and running.${TXTRESET}"
+
+# Set up nginx and paths
+echo "${YELLOW}Setting up nginx.${TXTRESET}"
+
+# Chec if /etc/nginx exists
+if [ -d "/etc/nginx" ]; then
+  echo "${YELLOW}Directory /etc/nginx exists.${TXTRESET}"
+else
+  echo "${YELLOW}Directory /etc/nginx does not exist. Symlinking homebrew installation to it.${TXTRESET}"
+  sudo ln -sfnv "${HOMEBREW_PATH}/etc/nginx" "/etc/nginx"
+
+  # Creating the necessary directories
+  sudo mkdir -p "${HOMEBREW_PATH}/etc/nginx/global"
+  sudo mkdir -p "${HOMEBREW_PATH}/etc/nginx/sites-enabled"
+  sudo mkdir -p "${HOMEBREW_PATH}/etc/nginx/sites-available"
+  sudo mkdir -p "${HOMEBREW_PATH}/etc/nginx/global"
+
+  # Setting permissions
+  sudo chmod -R 775 "${HOMEBREW_PATH}/etc/nginx/global"
+  sudo chmod -R 775 "${HOMEBREW_PATH}/etc/nginx/sites-enabled"
+  sudo chmod -R 775 "${HOMEBREW_PATH}/etc/nginx/sites-available"
+  sudo chmod -R 775 "${HOMEBREW_PATH}/etc/nginx/global"
+fi
+
+# Create default nginx configuration
 sudo echo "user $(whoami) staff;
+
 worker_processes 18;
 
 events {
-        multi_accept on;
-        accept_mutex on;
-        worker_connections 1024;
+  multi_accept on;
+  accept_mutex on;
+  worker_connections 1024;
 }
 
 http {
+  ##
+  # Optimization
+  ##
+
+  sendfile on;
+  sendfile_max_chunk 512k;
+  tcp_nopush on;
+  tcp_nodelay on;
+  keepalive_timeout 120;
+  keepalive_requests 100000;
+  types_hash_max_size 2048;
+  server_tokens off;
+  client_body_buffer_size 128k;
+  client_max_body_size 10m;
+  client_header_buffer_size 1k;
+  large_client_header_buffers 4 32k;
+  output_buffers 1 32k;
+  postpone_output 1460;
+
+  server_names_hash_max_size 1024;
+  #server_names_hash_bucket_size 64;
+  # server_name_in_redirect off;
+
+  include ${HOMEBREW_PATH}/etc/nginx/mime.types;
+  default_type application/octet-stream;
+
+  ##
+  # Logging Settings
+  ##
+  access_log off;
+  access_log /var/log/nginx/access.log combined;
+  error_log /var/log/nginx/error.log;
 
-        ##
-        # Optimization
-        ##
-
-        sendfile on;
-        sendfile_max_chunk 512k;
-        tcp_nopush on;
-        tcp_nodelay on;
-        keepalive_timeout 120;
-        keepalive_requests 100000;
-        types_hash_max_size 2048;
-        server_tokens off;
-        client_body_buffer_size      128k;
-        client_max_body_size         10m;
-        client_header_buffer_size    1k;
-        large_client_header_buffers  4 32k;
-        output_buffers               1 32k;
-        postpone_output              1460;
-
-        server_names_hash_max_size 1024;
-        #server_names_hash_bucket_size 64;
-        # server_name_in_redirect off;
-
-        include ${HOMEBREW_PATH}/etc/nginx/mime.types;
-        default_type application/octet-stream;
-
-        ##
-        # Logging Settings
-        ##
-        access_log off;
-        access_log /var/log/nginx/access.log combined;
-        error_log /var/log/nginx/error.log;
-
-        ##
-        # Virtual Host Configs
-        ##
-
-        include ${HOMEBREW_PATH}/etc/nginx/sites-enabled/*;
+  ##
+  # Virtual Host Configs
+  ##
+
+  include ${HOMEBREW_PATH}/etc/nginx/sites-enabled/*;
 }" > "${HOMEBREW_PATH}/etc/nginx/nginx.conf"
-sudo mkdir -p /var/log/nginx
-sudo touch /var/log/nginx/access.log
-sudo chmod 777 /var/log/nginx/access.log
-sudo touch /var/log/nginx/error.log
-sudo chmod 777 /var/log/nginx/error.log
+
+# Check if nginx log dir exists
+if [ -d "/var/log/nginx" ]; then
+  echo "${YELLOW}Directory /var/log/nginx exists.${TXTRESET}"
+else
+  echo "${YELLOW}Directory /var/log/nginx does not exist. Creating it and the access.log and error.log files.${TXTRESET}"
+  sudo mkdir -p /var/log/nginx
+  sudo touch /var/log/nginx/access.log
+  sudo chmod 777 /var/log/nginx/access.log
+  sudo touch /var/log/nginx/error.log
+  sudo chmod 777 /var/log/nginx/error.log
+fi
+
+# Create default php configuration
 sudo echo "location ~ \.php\$ {
   proxy_intercept_errors on;
   try_files \$uri /index.php;
@@ -98,25 +133,27 @@ sudo echo "location ~ \.php\$ {
   fastcgi_index index.php;
   fastcgi_param SCRIPT_FILENAME \$document_root\$fastcgi_script_name;
   fastcgi_pass 127.0.0.1:9000;
-}" > "${HOMEBREW_PATH}/etc/nginx/php7.conf"
+}" > "${HOMEBREW_PATH}/etc/nginx/php.conf"
+
+# Create default WordPress-related nginx configuration
 sudo echo "# WordPress single site rules.
 # Designed to be included in any server {} block.
 # Upstream to abstract backend connection(s) for php
 location = /favicon.ico {
-        log_not_found off;
-        access_log off;
+  log_not_found off;
+  access_log off;
 }
 
 location = /robots.txt {
-        allow all;
-        log_not_found off;
-        access_log off;
+  allow all;
+  log_not_found off;
+  access_log off;
 }
 
 location / {
-        # This is cool because no php is touched for static content.
-        # include the "?\$args" part so non-default permalinks doesn't break when using query string
-        try_files \$uri \$uri/ /index.php?\$args;
+  # This is cool because no php is touched for static content.
+  # include the "?\$args" part so non-default permalinks doesn't break when using query string
+  try_files \$uri \$uri/ /index.php?\$args;
 }
 
 # Add trailing slash to */wp-admin requests.
@@ -124,52 +161,102 @@ rewrite /wp-admin\$ \$scheme://\$host\$uri/ permanent;
 
 # Directives to send expires headers and turn off 404 error logging.
 location ~* ^.+\.(ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|rss|atom|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)\$ {
-       access_log off; log_not_found off; expires max;
+  access_log off;
+  log_not_found off;
+  expires max;
 }" > "${HOMEBREW_PATH}/etc/nginx/global/wordpress.conf"
+
+# Create default site configuration
 sudo echo "server {
-        listen 80 default_server;
-        root /var/www;
-        index index.html index.htm index.php;
-        server_name localhost;
-        include php7.conf;
-        include global/wordpress.conf;
+  listen 80 default_server;
+  root /var/www;
+  index index.html index.htm index.php;
+  server_name localhost;
+  include php.conf;
+  include global/wordpress.conf;
 }" > "${HOMEBREW_PATH}/etc/nginx/sites-available/default"
+
+# Symlink the default site configuration
 sudo ln -sfnv ${HOMEBREW_PATH}/etc/nginx/sites-available/default ${HOMEBREW_PATH}/etc/nginx/sites-enabled/default
-sudo cp "${HOMEBREW_PATH}/Cellar/nginx/1.23.1/html/index.html /var/www/"
+
+# Figure out the nginx correct installation path
+NGINX_VERSION=$(nginx -v 2>&1 | grep -o '[0-9.]*')
+NGINX_HOMEBREW_PATH=$(find $HOMEBREW_PATH -name "nginx" -type d -maxdepth 3)
+NGINX_HOMEBREW_VERSION_PATH=$(find $NGINX_HOMEBREW_PATH -name $NGINX_VERSION -type d -maxdepth 1)
+
+# Copy the default index.html to the nginx root
+sudo cp "${NGINX_HOMEBREW_VERSION_PATH}/html/index.html /var/www/"
+
+# Set the correct permissions
 sudo chown -R $(whoami):staff /var/www
-echo "${yellow}Installing PHP.${txtreset}"
+
+# Install PHP
+echo "${YELLOW}Installing PHP.${TXTRESET}"
+
+# This part is the same than in here:
+# Install and use PHP $PHP_VERSION in your local macos-lemp-setup environment
+# https://app.gitbook.com/o/PedExJWZmbCiZe4gDwKC/s/VVikkYgIZ9miBzwYDCYh/how-tos/install-and-use-php-8.3-in-your-local-macos-lemp-setup-environment
+
+# Add the PHP and PHP Extension taps
 brew tap shivammathur/php
-brew install shivammathur/php/php@7.4
+brew tap shivammathur/extensions
+
+# Install the PHP we need
+brew install shivammathur/php/php@${PHP_VERSION}
+
+# Link PHP CLI executable as `php`
+brew link --overwrite --force shivammathur/php/php@${PHP_VERSION}
+
+# Test installation, should display PHP 8.3.x (cli)
+php -v
+
+# Test php-fpm
 lsof -Pni4 | grep LISTEN | grep php
-sudo ln -s /System/Volumes/Data/opt/homebrew/etc/php /etc/PHP
-sudo echo "export PATH=\"\$(brew --prefix php@7.4)/bin:\$PATH\"" >> ~/.bash_profile
-sudo brew services stop php@7.4
-sudo brew services start php@7.4
-echo "${boldgreen}PHP installed and running.${txtreset}"
-echo "${yellow}Installing MariaDB.${txtreset}"
+
+# Symlink the PHP configuration
+sudo ln -s $HOMEBREW_PATH/etc/php /etc/php
+
+# Add PHP path to the PATH
+sudo echo "export PATH=\"\$(brew --prefix php@${PHP_VERSION})/bin:\$PATH\"" >> ~/.bash_profile
+
+# Restart
+sudo brew services stop php@${PHP_VERSION}
+sudo brew services start php@${PHP_VERSION}
+echo "${BOLDGREEN}PHP installed and running.${TXTRESET}"
+
+# Install MariaDB
+echo "${YELLOW}Installing MariaDB.${TXTRESET}"
 brew install mariadb
 brew services start mariadb
-echo "${boldgreen}MariaDB installed and running.${txtreset}"
-echo "${yellow}Installing MailHog.${txtreset}"
+echo "${BOLDGREEN}MariaDB installed and running.${TXTRESET}"
+
+# Install MailHog
+echo "${YELLOW}Installing MailHog.${TXTRESET}"
 brew update && brew install mailhog
-echo "${boldgreen}MailHog installed (run mailhog to start mail server).${txtreset}"
-echo "${yellow}Installing DNSmasq.${txtreset}"
+echo "${BOLDGREEN}MailHog installed (run mailhog to start mail server).${TXTRESET}"
+
+# Install DNSmasq
+echo "${YELLOW}Installing DNSmasq.${TXTRESET}"
 brew install dnsmasq
 curl -L https://gist.githubusercontent.com/dtomasi/ab76d14338db82ec24a1fc137caff75b/raw/550c84393c4c1eef8a3e68bb720df561b5d3f175/dnsmasq.conf -o /usr/local/etc/dnsmasq.conf
 sudo curl -L https://gist.githubusercontent.com/dtomasi/ab76d14338db82ec24a1fc137caff75b/raw/550c84393c4c1eef8a3e68bb720df561b5d3f175/dev -o /etc/resolver/dev
 sudo brew services stop dnsmasq
 sudo brew services start dnsmasq
-echo "${boldgreen}DNSmasq installed and configured.${txtreset}"
-echo "${yellow}Restarting services....${txtreset}"
+echo "${BOLDGREEN}DNSmasq installed and configured.${TXTRESET}"
+
+# Restart all services
+echo "${YELLOW}Restarting services....${TXTRESET}"
+
 # These need to be running as root, because of the port 80 and other privileges.
 sudo brew services stop dnsmasq
 sudo brew services start dnsmasq
 sudo brew services stop nginx
 sudo brew services start nginx
-sudo brew services stop php@7.4
-sudo brew services start php@7.4
+sudo brew services stop php@${PHP_VERSION}
+sudo brew services start php@${PHP_VERSION}
 brew services stop mariadb
 brew services start mariadb
 sudo brew services list
 
-echo "${boldgreen}You should now be able to use http://localhost. If not, test with commands sudo nginx -t and sudo php-fpm -t and fix errors. Add new vhosts to /opt/homebrew/etc/nginx/sites-available and symlink them just like you would do in production. Have fun!${txtreset}"
+# All done
+echo "${BOLDGREEN}You should now be able to use http://localhost. If not, test with commands sudo nginx -t and sudo php-fpm -t and fix errors. Add new vhosts to /opt/homebrew/etc/nginx/sites-available and symlink them just like you would do in production. Have fun!${TXTRESET}"