manifest: Add development manifest.

This manifest contains additional tools useful for hacking on ccwl,
and not just the dependencies required to build ccwl.

1 files changed, 1 insertions, 1 deletions

diff --git a/HACKING.md b/HACKING.md
index bb822b3..59b7c9b 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -2,7 +2,7 @@
 
 Drop into a development environment using `guix shell`.
 ```
-guix shell -Df guix.scm
+guix shell -L .guix -m manifest.scm
 ```
 
 # Make a release