nixpacks.toml

# Nixpacks configuration file

[variables]
    YARN_CACHE_FOLDER = '/tmp/.yarn-cache'  # Optional: Specify a cache folder for Yarn
    NPM_CONFIG_UPDATE_NOTIFIER = 'false'
    NPM_CONFIG_FUND = 'false'

[tools]
    node = "16.x"      # Specify the Node.js version
    yarn = "1.22"      # Specify a valid Yarn version

[phases.setup]
    cmds = [
        "yarn cache clean --all",  # Clear the Yarn cache
        "yarn"                      # Install dependencies with a fresh cache
    ]

[phases.build]
    cmds = [
        "yarn build",               # Build the project with Yarn
        "yarn cache clean"          # Clean Yarn cache to minimize the final image size (optional)
    ]

[phases.caddy]
    dependsOn = ['build']
    nixpkgsArchive = 'ba913eda2df8eb72147259189d55932012df6301'
    nixPkgs = ['caddy', 'yarn']  # Include Yarn alongside Caddy

[phases.fmt]
    dependsOn = ['caddy']
    cmds = ['caddy fmt --overwrite Caddyfile']  # Format the Caddyfile

[start]
    cmd = 'exec caddy run --config Caddyfile --adapter caddyfile 2>&1'  # Start Caddy