diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..e2f671d
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+export PATH="$PATH:$(dirname $(realpath $1))/tools"
diff --git a/tools/cram b/tools/cram
new file mode 100755
index 0000000..686bc09
--- /dev/null
+++ b/tools/cram
@@ -0,0 +1,3 @@
+#!/bin/sh
+bazel build //:cram &> /dev/null
+exec "$(git rev-parse --show-toplevel)"/bazel-bin/cram "$@"