diff --git a/package/config.cfg b/package/config.cfg
new file mode 100644
index 0000000..97ef34b
--- /dev/null
+++ b/package/config.cfg
@@ -0,0 +1,16 @@
+# /etc/packages.cfg
+
+prefixes:
+	- /usr/weirdos
+	- /usr/bad
+	- /
+
+packages-directory: /srv/packages
+sources-directory:  /srv/sources
+
+environment:
+	- CFLAGS:     -O2 -fPIC
+	- CXXFLAGS:   -O2 -fPIC
+	- MAKEFLAGS:  -j4
+
+# EOF
diff --git a/package/recipe.spec b/package/recipe.spec
index c83cf62..62b63b9 100644
--- a/package/recipe.spec
+++ b/package/recipe.spec
@@ -1,6 +1,9 @@
 name: package
-version: 0.2.0
-sources: https://git.karchnu.fr/WeirdOS/package/archive/%{version}.tar.gz -> %{name}-%{version}.tar.gz
+version: 0.5.0
+sources:
+	- https://git.karchnu.fr/WeirdOS/package/archive/%{version}.tar.gz -> %{name}-%{version}.tar.gz
+	- config.cfg
+
 build-dependencies: crystal, shards
 # FIXME: FIXME: Build this statically in.
 dependencies: gc, libevent, pcre
@@ -11,7 +14,10 @@ dirname: package
 	shards install
 @build
 	cd %{dirname}
-	make PREFIX=/usr
+	make PREFIX="%{prefix}"
 @install
 	cd %{dirname}
-	make PREFIX=/usr DESTDIR="%{pkg}" install
+	make PREFIX="%{prefix}" DESTDIR="%{pkg}" install
+
+	mkdir -p "%{pkg}/etc"
+	cp ../config.cfg "%{pkg}/etc/package.cfg"