add sbt to flake

Author: bishabosha

.gitignore

@@ -188,6 +188,7 @@ local.properties
 .cache-main
 .scala_dependencies
 .worksheet
+metals.sbt
 
 # Uncomment this line if you wish to ignore the project description file.
 # Typically, this file would be tracked if it contains build/dependency configurations:

flake.lock

@@ -24,7 +24,7 @@
         # Equivalent to  inputs'.nixpkgs.legacyPackages.hello;
         # packages.default = pkgs.hello;
         devShells.default = pkgs.mkShell {
-          buildInputs = with pkgs; [ jdk21 scala-cli metals scalafmt ];
+          buildInputs = with pkgs; [ jdk21 scala-cli metals scalafmt sbt ];
         };
       };
       flake = {