diff --git a/src/context.cr b/src/context.cr
index 6a41b6f..b7249ec 100644
--- a/src/context.cr
+++ b/src/context.cr
@@ -18,5 +18,12 @@ class Package::Context
 	def run(command)
 		run nil, command, nil
 	end
+
+	def package(package : Package) : Bool
+		puts "#{package.fake_root_directory} -> #{packages_directory}/#{package.name}##{package.version}.pkg.tar.xz"
+		pp! r = run package.fake_root_directory, "tar", ["cJf", "#{packages_directory}/#{package.name}##{package.version}.pkg.tar.xz", "."]
+
+		r.exit_status == 0
+	end
 end
 
diff --git a/src/main.cr b/src/main.cr
index 2fc8b25..5adad77 100644
--- a/src/main.cr
+++ b/src/main.cr
@@ -10,13 +10,13 @@ Context.new().tap do |context|
 	Recipe.new(context, "hello", "2.10").tap do |recipe|
 		recipe.sources << "https://ftp.gnu.org/gnu/hello/hello-2.10.tar.gz"
 
-		recipe.download
-		recipe.extract
-
 		#recipe.instructions.configure << "cd hello-#{recipe.version} && ./configure"
 		#recipe.instructions.build << "cd hello-#{recipe.version} && make"
 		recipe.instructions.install << "cd hello-#{recipe.version} && make DESTDIR='${PKG}' install"
 
+		recipe.download
+		recipe.extract
+
 		raise "oh no, build failed" unless recipe.build
 		recipe.package
 
diff --git a/src/package.cr b/src/package.cr
index 5d97b58..26fc3ef 100644
--- a/src/package.cr
+++ b/src/package.cr
@@ -1,9 +1,26 @@
 
 class Package::Package
-	getter name : String
-	getter version : String
+	@recipe : Recipe
 
-	def initialize(@name, @version)
+	def initialize(@recipe)
+	end
+
+	macro inherit(attribute)
+		@{{attribute.var.id}} : {{attribute.type.id}}?
+
+		def {{attribute.var.id}} : {{attribute.type.id}}
+			@{{attribute.var.id}} || @recipe.{{attribute.var.id}}
+		end
+	end
+
+	inherit name : String
+	inherit version : String
+
+	# Internals
+	inherit fake_root_directory : String
+
+	def to_s
+		"<Package: #{name}-#{version}>"
 	end
 end
 
diff --git a/src/recipe.cr b/src/recipe.cr
index 1233b0e..e8d69f6 100644
--- a/src/recipe.cr
+++ b/src/recipe.cr
@@ -26,16 +26,21 @@ class Package::Recipe
 	getter packages : Array(Package)
 
 	getter instructions = Instructions.new
-
 	def initialize(@context, @name, @version)
 		@sources = Sources.new
-		@packages = [
-			Package.new @name, @version
-		]
+		@packages = [] of Package
 
 		@working_uuid = UUID.random
 	end
 
+	def self.new(context, name, version)
+		instance = Recipe.allocate.tap &.initialize(context, name, version)
+
+		instance.packages << Package.new instance
+
+		instance
+	end
+
 	def working_directory
 		@context.working_directory
 	end
@@ -100,9 +105,13 @@ class Package::Recipe
 		success
 	end
 
+	# TODO:
+	#  - Errors management. Stop at first failure?
+	#  - Splits. This should be done between #build and #package.
 	def package
-		puts "#{fake_root_directory} -> #{@context.packages_directory}/#{name}##{version}.pkg.tar.xz"
-		pp! @context.run fake_root_directory, "tar", ["cJf", "#{@context.packages_directory}/#{name}##{version}.pkg.tar.xz", "."]
+		@packages.find do |package|
+			! @context.package package
+		end
 	end
 
 	def clean