diff --git a/nix/devshell.nix b/nix/devshell.nix
index 0f51579..4464239 100644
--- a/nix/devshell.nix
+++ b/nix/devshell.nix
@@ -5,6 +5,7 @@
   perSystem = {
     pkgs,
     inputs',
+    self',
     ...
   }: {
     devShells.default = let
@@ -25,6 +26,10 @@
             nix
             reuse
           ])
+          ++ (with self'.packages; [
+            vulnix
+            nix-visualize
+          ])
           ++ (with pp; [
             beautifulsoup4
             colorlog
diff --git a/nix/packages.nix b/nix/packages.nix
index aef6206..cdbe5c2 100644
--- a/nix/packages.nix
+++ b/nix/packages.nix
@@ -9,17 +9,6 @@
   }: let
     pp = pkgs.python3Packages;
 
-    # We use vulnix from 'https://github.com/henrirosten/vulnix' to get
-    # vulnix support for runtime-only scan ('-C' command-line option)
-    # which is currently not available in released version of vulnix.
-    # Pending https://github.com/nix-community/vulnix/pull/80
-    vulnix = (import inputs.vulnix) {
-      inherit (inputs) nixpkgs; # required but not used as we provide pkgs
-      inherit pkgs lib;
-    };
-
-    nix-visualize = (import inputs.nix-visualize) {inherit pkgs;};
-
     pyrate-limiter = pp.buildPythonPackage rec {
       version = "2.10.0";
       pname = "pyrate-limiter";
@@ -55,6 +44,17 @@
     packages = rec {
       default = sbomnix;
 
+      # We use vulnix from 'https://github.com/henrirosten/vulnix' to get
+      # vulnix support for runtime-only scan ('-C' command-line option)
+      # which is currently not available in released version of vulnix.
+      # Pending https://github.com/nix-community/vulnix/pull/80
+      vulnix = (import inputs.vulnix) {
+        inherit (inputs) nixpkgs; # required but not used as we provide pkgs
+        inherit pkgs lib;
+      };
+
+      nix-visualize = (import inputs.nix-visualize) {inherit pkgs;};
+
       sbomnix = pp.buildPythonPackage rec {
         pname = "sbomnix";
         version = pkgs.lib.removeSuffix "\n" (builtins.readFile ../VERSION);