README

1 files changed, 7 insertions, 1 deletions

diff --git a/README.md b/README.md
index cf8efa6..94ca0ed 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,13 @@ Bioinformatics packages for GNU Guix that are used in http://genenetwork.org/.
 See [Guix Notes](https://github.com/pjotrp/guix-notes/blob/master/HACKING.org) for hacking GNU Guix.
 
 Set the GUIX_PACKAGE_PATH to point to the root of this directory
-before running Guix.
+before running Guix. E.g.
+
+: env GUIX_PACKAGE_PATH=../guix-bioinformatics/ guix package -A cwl
+
+or from the checked out Guix repo
+
+: env GUIX_PACKAGE_PATH=../guix-bioinformatics/ ./pre-inst-env guix package -A cwl
 
 Some of these package definitions should make it upstream into the GNU
 Guix repository when tested and stable.