diff --git a/modules/fzf/testbeds/fzf.nix b/modules/fzf/testbeds/fzf.nix
index 1f842080..d17f32b2 100644
--- a/modules/fzf/testbeds/fzf.nix
+++ b/modules/fzf/testbeds/fzf.nix
@@ -6,9 +6,6 @@
   };
 
   home-manager.sharedModules = lib.singleton {
-    programs = {
-      bash.enable = true;
-      fzf.enable = true;
-    };
+    programs.fzf.enable = true;
   };
 }
diff --git a/stylix/testbed/modules/common.nix b/stylix/testbed/modules/common.nix
index 177dfb6e..b8eb5ac6 100644
--- a/stylix/testbed/modules/common.nix
+++ b/stylix/testbed/modules/common.nix
@@ -17,6 +17,12 @@ in
   home-manager.users.${user.username}.home.stateVersion =
     config.system.nixos.release;
 
+  home-manager.sharedModules = lib.singleton {
+    # Enable Bash to ensure environment variables are set, avoiding individual
+    # testbeds to consider environment variable implementation details.
+    programs.bash.enable = true;
+  };
+
   virtualisation.vmVariant.virtualisation = {
     # This is a maximum limit; the VM should still work if the host has fewer cores.
     cores = 4;