diff --git a/README.md b/README.md
index 1ac29ef..b0d6426 100644
--- a/README.md
+++ b/README.md
@@ -12,10 +12,28 @@
 Building source packages
 ------------------------
 
-The build process is very much automated and the following command can be used to build a
-specific source package and upload it to the ppa.
+The build process is very much automated and the following command can be used to build
+all packages and upload them to the ppa.
 
-    make dput <PACKAGE_NAME>
+    make dput
 
 Before running dput make sure that you have access to upload packages to `named-data/ppa`
 (or modify target PPA repository in `packaging.mk`).
+
+To build a specific package, go to the package's folder and run the same `make dput` command.
+
+Advanced uses
+-------------
+
+The scripts by default create source packages for Ubuntu 12.04 (precise), 13.10 (saucy),
+and 14.04 (trusty).  If necessary, default actions and distributions can be overriden:
+
+To only build source packages (no upload) only for Ubuntu 12.04:
+
+    make build DISTROS=precise
+
+To build binary package that can be installed with `dpkg -i <package>.deb`:
+
+    make build DEBUILD=debuild DISTROS=precise
+
+The build package will be in `<package-folder>/work/<package-name>_<version>.deb`