diff --git a/.drone.yml b/.drone.yml
index bc9a5b1..7b9593f 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -31,3 +31,17 @@ volumes:
   - name: dockersock
     host:
       path: /var/run/docker.sock
+
+---
+
+kind: pipeline
+name: tools
+workspace:
+  base: /lewa
+
+steps:
+  - name: rust tests
+    image: "rust:1"
+    pull: always
+    commands:
+      - cd tools && cargo test
diff --git a/book/default.nix b/book/default.nix
index b4cd2c1..7aec7b3 100644
--- a/book/default.nix
+++ b/book/default.nix
@@ -34,7 +34,7 @@ let
     '';
   };
 in pkgs.dockerTools.buildLayeredImage {
-  name = "xena/lewa-book";
+  name = "xena/lewa-book:${book.version}";
   contents = [ book nur.repos.xe.quickserv ];
   config.Cmd = [ "/bin/quickserv" "-port=9001" "-dir=/book" ];
 }
diff --git a/shell.nix b/shell.nix
index e3244d2..f9dc141 100644
--- a/shell.nix
+++ b/shell.nix
@@ -9,13 +9,23 @@ let
   tex = pkgs.callPackage ./nix/texlive.nix { };
 in pkgs.mkShell {
   buildInputs = with pkgs; [
+    # deployment tools
     dyson
-    kindlegen
     kubectl
     kubectx
+
+    # book tooks
+    kindlegen
     mdbook
     nur.repos.mic92.pandoc-bin
     tex
+
+    # preview
     nur.repos.xe.zathura
+
+    # rust
+    cargo
+    rustc
+    rls
   ];
 }
diff --git a/tools/.gitignore b/tools/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/tools/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/tools/Cargo.lock b/tools/Cargo.lock
new file mode 100644
index 0000000..a43ace2
--- /dev/null
+++ b/tools/Cargo.lock
@@ -0,0 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "lewa"
+version = "0.1.0"
diff --git a/tools/Cargo.toml b/tools/Cargo.toml
new file mode 100644
index 0000000..8d23cdc
--- /dev/null
+++ b/tools/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "lewa"
+version = "0.1.0"
+authors = ["Christine Dodrill <me@christine.website>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/tools/src/lib.rs b/tools/src/lib.rs
new file mode 100644
index 0000000..31e1bb2
--- /dev/null
+++ b/tools/src/lib.rs
@@ -0,0 +1,7 @@
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        assert_eq!(2 + 2, 4);
+    }
+}