another try

Author: Cmdv

.github/workflows/haskell.yml

@@ -52,10 +52,11 @@ jobs:
         uses: input-output-hk/actions/base@latest
         with:
           use-sodium-vrf: true
-      - name: Add LMDB to devx environment
+      - name: Add LMDB to Nix environment
         run: |
-          # Add lmdb to the Nix environment since devx PR #221 isn't available yet
-          nix-env -i lmdb
+          # Install LMDB from nixpkgs into the Nix user profile
+          # This is temporary until devx PR #221 is merged
+          nix-env -f '<nixpkgs>' -iA lmdb
         shell: devx {0}
       - name: cache cabal
         uses: actions/cache@v3