```ruby
require "tilt"

class Cuba
  module Rendering
    def self.setup(app)
      app.plugin Cuba::Settings
      app.set :template_engine, "erb"
      app.set :views, File.expand_path("views", Dir.pwd)
    end

    def view(template, locals = {})
      partial("layout", { content: partial(template, locals) }.merge(locals))
    end

    def partial(template, locals = {})
      render("#{settings.views}/#{template}.#{settings.template_engine}", locals)
    end

    # Render any type of template file supported by Tilt.
    #
    # @example
    #
    #   # Renders home, and is assumed to be HAML.
    #   render("home.haml")
    #
    #   # Renders with some local variables
    #   render("home.haml", site_name: "My Site")
    #
    #   # Renders with HAML options
    #   render("home.haml", {}, ugly: true, format: :html5)
    #
    #   # Renders in layout
    #   render("layout.haml") { render("home.haml") }
    #
    def render(template, locals = {}, options = {}, &block)
      _cache.fetch(template, locals) {
        Tilt.new(template, 1, options)
      }.render(self, locals, &block)
    end
  end
end
```

Add view encoding settings. Set utf-8 encoding as default
user
```ruby
require "tilt"

class Cuba
  module Rendering
    def self.setup(app)
      app.plugin Cuba::Settings
      app.set :template_engine, "erb"
      app.set :views, File.expand_path("views", Dir.pwd)
      app.set :encoding, Encoding::UTF_8
    end

    def view(template, locals = {})
      partial("layout", { content: partial(template, locals) }.merge(locals))
    end

    def partial(template, locals = {})
      render("#{settings.views}/#{template}.#{settings.template_engine}", locals, default_encoding: settings.encoding)
    end

    # Render any type of template file supported by Tilt.
    #
    # @example
    #
    #   # Renders home, and is assumed to be HAML.
    #   render("home.haml")
    #
    #   # Renders with some local variables
    #   render("home.haml", site_name: "My Site")
    #
    #   # Renders with HAML options
    #   render("home.haml", {}, ugly: true, format: :html5)
    #
    #   # Renders in layout
    #   render("layout.haml") { render("home.haml") }
    #
    def render(template, locals = {}, options = {}, &block)
      _cache.fetch(template, locals) {
        Tilt.new(template, 1, options)
      }.render(self, locals, &block)
    end
  end
end
```
assistant