diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b5685e9..e073336 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,8 +27,15 @@ jobs:
       - name: Test Default Shell
         run: |
           set -x
+
+          # test `nix develop`
           nix develop .# --command -- bash -c "solc-0.8.26 --version"
-          # overriding flake input is needed as a workaround to local sub flake with overlapping paths.
+
+          # test `nix shell`
+          nix shell .#solc-0.8.19
+
+          # test solc.nix as input to other flakes
+          # Note: overriding flake input is needed as a workaround to local sub flake with overlapping paths.
           nix develop ./test/.# --override-input solc $PWD --command -- bash -c "solc --version"
           nix develop ./test/.# --override-input solc $PWD --command -- bash -c "solc-0.8.26 --version"
   ci-check-success:
diff --git a/flake.nix b/flake.nix
index bca112f..56abad0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -39,6 +39,9 @@
         {
           # default shell with the latest solc compiler
           devShells.default = pkgs.mkShell { buildInputs = [ pkgs.solc_0_8_26 ]; };
+
+          # export all solc packages
+          packages = pkgs;
         }
       )
     // {