1 files changed, 4 insertions, 0 deletions

diff --git a/README.md b/README.md
index dbae295..368eaeb 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,8 @@ project home: <https://sr.ht/~boringcactus/crowbar-lang/>
 
 read the spec: <https://man.sr.ht/~boringcactus/crowbar-spec/>
 
+reference compiler: <https://git.sr.ht/~boringcactus/crowbar-reference-compiler>
+
+play with the reference compiler: <https://crowbar-playground.boringcactus.com/>
+
 [![Creative Commons BY-SA License](https://i.creativecommons.org/l/by-sa/4.0/80x15.png)](http://creativecommons.org/licenses/by-sa/4.0/)