diff --git a/Justfile b/Justfile
index 916b8f43..150f8b1f 100644
--- a/Justfile
+++ b/Justfile
@@ -1,5 +1,7 @@
 os host action:
         #!/usr/bin/env bash
+        set -euo pipefail
+
         nixpkgs=$(nix-instantiate --eval -E "let sources = import ./nix/sources.nix {}; in sources.nixpkgs.outPath" | jq -r .)
         sudo nixos-rebuild {{ action }} \
                 -I nixpkgs=${nixpkgs} \
@@ -10,6 +12,8 @@ os host action:
 
 install host:
         #!/usr/bin/env bash
+        set -euo pipefail
+
         nixpkgs=$(nix-instantiate --eval -E "let sources = import ./nix/sources.nix {}; in sources.nixpkgs.outPath" | jq -r .)
         sudo nixos-install \
                 -I nixpkgs=${nixpkgs} \
@@ -19,11 +23,19 @@ install host:
 
 env name action profilePath="~/.environments":
         #!/usr/bin/env bash
+        set -euo pipefail
+
         # 1) realize the buildEnv derivation
         # 2) set the environment to it
         drv=$(nix-build -E "
                 let sources = import ./nix/sources.nix {};
-                    pkgs = import sources.nixpkgs {};
+                    pkgs = import sources.nixpkgs {
+                      overlays = [
+                        (import ./nix/overlays)
+                        (import ./nix/overlays/packages.nix)
+                        (import ./nix/overlays/packagesStable.nix)
+                      ];
+                    };
                  in pkgs.callPackage ./nix/environments/{{ name }}.nix {}
                 ")
         mkdir -p {{ profilePath }}