start repl on nix develop

flake.nix

@@ -1,5 +1,5 @@
 {
-  description = "Sketches in Quil";
+  description = "tumblr RSS feed fixer";
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs";
@@ -9,13 +9,18 @@
   outputs = { self, nixpkgs, flake-utils }:
     flake-utils.lib.eachDefaultSystem (system:
       let pkgs = nixpkgs.legacyPackages.${system};
-    in {
+      in
+      {
         devShell = pkgs.mkShell {
           buildInputs = [
             pkgs.leiningen
             pkgs.jdk11
             pkgs.clojure
           ];
+          shellHook = ''
+            alias repl='lein repl';
+            repl
+          '';
         };
       });
 }