feat: moves the dev shell into teh flake config.

dev.nix

@@ -1,29 +0,0 @@
-# run with: nix-shell dev.nix
-# has everything installed for dev
-
-{ pkgs ? import <nixpkgs> {} }:
-with pkgs;
-let
-imports =
-    let agenixCommit = "42d371d861a227149dc9a7e03350c9ab8b8ddd68";
-    in
-    {
-      agenix = import
-        (builtins.fetchTarball {
-          url = "https://github.com/ryantm/agenix/archive/${agenixCommit}.tar.gz";
-          sha256 = "14sszf5s85i4jd3lc8c167fbxvpj13da45wl1j7wpd20n0fic5c1";
-        })
-        { inherit pkgs; };
-    };
-in mkShell {
-    # nativeBuildInputs is usually what you want -- tools you need to run
-    nativeBuildInputs = [
-        pkgs.buildPackages.git
-        pkgs.buildPackages.colmena
-        pkgs.buildPackages.nmap
-    ];
-
-    buildInputs = [ imports.agenix.agenix ];
-
-    shellHook = ''export EDITOR="${pkgs.nano}/bin/nano --nonewlines"'';
-}

flake.nix

@@ -23,7 +23,24 @@
     skynet_website_2016.url = "gitlab:compsoc1%2Fskynet%2Fwebsite/2016?host=gitlab.skynet.ie";
   };
 
-  outputs = { self, nixpkgs, ... } @inputs: {
+  nixConfig.bash-prompt-suffix = "[Skynet Dev] ";
+
+  outputs = { self, nixpkgs, agenix,  ... } @inputs:
+    let
+      pkgs = nixpkgs.legacyPackages.x86_64-linux.pkgs;
+    in {
+    # run "nix develop"
+    devShells.x86_64-linux.default = pkgs.mkShell {
+      name = "My-project build environment";
+      nativeBuildInputs = [
+          pkgs.buildPackages.git
+          pkgs.buildPackages.colmena
+          pkgs.buildPackages.nmap
+      ];
+      buildInputs = [ agenix.packages.x86_64-linux.default ];
+      shellHook = ''export EDITOR="${pkgs.nano}/bin/nano --nonewlines"'';
+    };
+
     # https://github.com/zhaofengli/colmena
     # colmena apply --on agentjones
     # colmena apply --on @dns