add hydra, update ruff, format files

Signed-off-by: ahuston-0 <aliceghuston@gmail.com>

shell.nix

@@ -6,44 +6,40 @@
   ...
 }:
 
-  let
-    inherit (inputs) nixpkgs;
-    pkgs = nixpkgs.legacyPackages.${system};
+let
+  inherit (inputs) nixpkgs;
+  pkgs = nixpkgs.legacyPackages.${system};
 
-    # construct the shell provided by pre-commit for running hooks
-    pre-commit = pkgs.mkShell {
-      inherit (checks.pre-commit-check) shellHook;
-      buildInputs = checks.pre-commit-check.enabledPackages;
-    };
+  # construct the shell provided by pre-commit for running hooks
+  pre-commit = pkgs.mkShell {
+    inherit (checks.pre-commit-check) shellHook;
+    buildInputs = checks.pre-commit-check.enabledPackages;
+  };
 
-    # constructs a custom shell with commonly used utilities
-    rad-dev = pkgs.mkShell {
-      packages = with pkgs; [
-        deadnix
-        pre-commit
-        treefmt
-        statix
-        nixfmt-rfc-style
-      ];
-    };
+  # constructs a custom shell with commonly used utilities
+  rad-dev = pkgs.mkShell {
+    packages = with pkgs; [
+      deadnix
+      pre-commit
+      treefmt
+      statix
+      nixfmt-rfc-style
+    ];
+  };
 
-    # constructs the application in-place
-    app = pkgs.mkShell{
-      inputsFrom = [self.packages.${system}.myapp];
-    };
+  # constructs the application in-place
+  app = pkgs.mkShell { inputsFrom = [ self.packages.${system}.myapp ]; };
 
-    # pull in python/poetry dependencies
-    poetry = pkgs.mkShell {
-      pacakges = [pkgs.poetry];
-    };
-  in
-  {
-    default = pkgs.mkShell {
-      inputsFrom = [
-        pre-commit
-        rad-dev
-        app
-        poetry
-      ];
-    };
-  }
+  # pull in python/poetry dependencies
+  poetry = pkgs.mkShell { packages = [ pkgs.poetry ]; };
+in
+{
+  default = pkgs.mkShell {
+    inputsFrom = [
+      pre-commit
+      rad-dev
+      app
+      poetry
+    ];
+  };
+}