diff --git a/README.md b/README.md
index 27749fc2..8cfe8ff5 100644
--- a/README.md
+++ b/README.md
@@ -84,3 +84,11 @@ This uses [goose](https://github.com/pressly/goose). You can use the goose comma
 > GOOSE_DRIVER=postgres GOOSE_DBSTRING="dbname=nidus-sync sslmode=disable" goose down
 > GOOSE_DRIVER=postgres GOOSE_DBSTRING="dbname=nidus-sync sslmode=disable" goose up
 ```
+
+### watchexec
+
+For iterating on styles
+
+```
+watchexec -e *.scss sass --style=compressed scss/custom.scss:htmlpage/static/css/bootstrap.css
+```
diff --git a/flake.nix b/flake.nix
index fba2b1fa..69f7af77 100644
--- a/flake.nix
+++ b/flake.nix
@@ -26,6 +26,7 @@
                                                 pkgs.gotools
                                                 pkgs.lefthook
 						pkgs.sass
+						pkgs.watchexec
                                         ];
                                 };
                         }