move tooling to dev environment

common/environment.nix

@@ -12,11 +12,6 @@
     lsof
     tcpdump
     netcat # <3
-
-    # used for nix config
-    colmena
-    agenix
-    rc2nix
   ];
 
   environment.wordlist.enable = true;

flake.nix

@@ -42,10 +42,6 @@
         nix.nixPath = [ "nixpkgs=flake:nixpkgs" ];
         nixpkgs.config.allowUnfree = true;
 
-        nixpkgs.config.packageOverrides = pkgs: {
-          agenix = agenix.packages.${config.nixpkgs.hostPlatform.system}.default;
-          rc2nix = plasma-manager.packages.${config.nixpkgs.hostPlatform.system}.rc2nix;
-        };
         nixpkgs.overlays = [ nur.overlay ];
         home-manager.sharedModules = [ plasma-manager.homeManagerModules.plasma-manager ];
 
@@ -92,5 +88,19 @@
         ];
       };
     };
+
+    # TODO: have this work on other systems too
+    devShells."x86_64-linux".default =
+      let
+        system = "x86_64-linux";
+        pkgs = import nixpkgs { inherit system; };
+      in
+      pkgs.mkShell {
+        packages = [
+          pkgs.colmena
+          agenix.packages.${system}.default
+          plasma-manager.packages.${system}.rc2nix
+        ];
+      };
   };
 }

shell.nix

@@ -0,0 +1,9 @@
+let
+  shell = (import
+    (fetchTarball {
+      url = "https://github.com/edolstra/flake-compat/archive/refs/tags/v1.0.1.tar.gz";
+      sha256 = "0jm6nzb83wa6ai17ly9fzpqc40wg1viib8klq8lby54agpl213w5";
+    })
+    { src = ./.; }).shellNix;
+in
+shell.devShells.${builtins.currentSystem}