diff --git a/flake.nix b/flake.nix
index 94ff734..9a17dba 100644
--- a/flake.nix
+++ b/flake.nix
@@ -30,6 +30,7 @@
               elmPackages.elm
               elmPackages.elm-test
               elmPackages.elm-format
+              entr
             ];
           };
 
diff --git a/watch.sh b/watch.sh
new file mode 100755
index 0000000..012d98b
--- /dev/null
+++ b/watch.sh
@@ -0,0 +1 @@
+find src/ | entr -r elm make src/Main.elm --output compiled/Main.js