diff --git a/flake.nix b/flake.nix
index 779acfc..fa21684 100644
--- a/flake.nix
+++ b/flake.nix
@@ -246,6 +246,7 @@
             rustToolchain
             pkgs.gnuplot
             pkgs.teleport_13
+            pkgs.taplo
             (pkgs.writeShellScriptBin "ci" ''nix/ci.sh "$@"'')
           ] ++ hostDeps ++ extraHostDeps;
         } // env // extraEnv);
diff --git a/taplo.toml b/taplo.toml
new file mode 100644
index 0000000..d2aad4c
--- /dev/null
+++ b/taplo.toml
@@ -0,0 +1,14 @@
+exclude = ["**/target/**/*", ".direnv/**/*"]
+
+[formatting]
+align_comments = false
+column_width = 88
+indent_string = "	"
+reoder_arrays = true
+reorder_keys = true
+trailing_newline = true
+
+[[rule]]
+keys = ["package"]
+[rule.formatting]
+reorder_keys = false