diff --git a/shell.nix b/shell.nix
index f9dc141..fb60e72 100644
--- a/shell.nix
+++ b/shell.nix
@@ -14,7 +14,7 @@ in pkgs.mkShell {
     kubectl
     kubectx
 
-    # book tooks
+    # book tools
     kindlegen
     mdbook
     nur.repos.mic92.pandoc-bin
@@ -25,7 +25,9 @@ in pkgs.mkShell {
 
     # rust
     cargo
-    rustc
+    cargo-watch
     rls
+    rustc
+    rustfmt
   ];
 }
diff --git a/tools/Cargo.toml b/tools/Cargo.toml
index 8d23cdc..8e371a9 100644
--- a/tools/Cargo.toml
+++ b/tools/Cargo.toml
@@ -3,6 +3,7 @@ name = "lewa"
 version = "0.1.0"
 authors = ["Christine Dodrill <me@christine.website>"]
 edition = "2018"
+license = "MIT"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html