feat: configure nixpacks for Hugo static site deployment with nginx server

nixpacks.toml

@@ -1,19 +1,35 @@
 # nixpacks.toml
 
+# Explicitly set the provider to 'static'
+[provider]
+name = "static"
+website = "https://gohugo.io/"
+
 # This section ensures that Hugo is available in the build environment.
 # Nixpacks will use Nix to provide the 'hugo' package.
 [phases.setup]
 providers = ["node", "rust", "go"] # Ensures common build toolchains are available
 nix_pkgs = ["hugo"]
 
+# This section defines variables used during the build
+[variables]
+NIXPACKS_STATIC_COMMAND = "hugo --verbose --minify"
+
 # This section defines the command(s) to build your Hugo site.
 # Using "--verbose" can give more detailed output from Hugo during the build if needed.
 # Using "--minify" is good practice to reduce file sizes.
 [phases.build]
-cmds = ["hugo --verbose --minify"]
+cmds = ["$NIXPACKS_STATIC_COMMAND"]
 
 # This section tells Nixpacks where your built static site will be located.
 # Coolify will then use this 'public' directory to serve your website.
 [start]
 public_dir = "public"
 # No 'cmd' is needed here for static sites, as Coolify handles the serving.
+
+# Make sure the static site server is used
+[phases.install]
+cmds = ["echo 'Using Hugo to build a static site'"]
+
+[staticserver]
+package = "nginx"