diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 947ca31..d5c037e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -50,10 +50,10 @@ jobs:
 
       - name: Build new ${{ matrix.system }} system
         shell: bash
+        env:
+          HOME: /tmp
         run: |
           set -o pipefail
-          rm -rf /homeless-shelter
-          export HOME=$(pwd)
           nix build \
             ".#top.${{ matrix.system }}" \
             --profile ./profile \
diff --git a/flake.nix b/flake.nix
index 440d5c8..d7a1a64 100644
--- a/flake.nix
+++ b/flake.nix
@@ -77,14 +77,9 @@
     rec {
       # Use nixpkgs-fmt for 'nix fmt'
       formatter = forAllSystems (system: nixpkgs.legacyPackages."${system}".nixpkgs-fmt);
-      buildPhase = forAllSystems (system: nixpkgs.legacyPackages."${system}".stdenv.mkDerivation {
-        buildPhase = ''
-          export HOME=$(pwd)
-        '';
-      });
 
       # setup devshells against shell.nix
-      # devShells = forAllSystems (pkgs: import ./shell.nix { inherit pkgs; });
+      devShells = forAllSystems (pkgs: import ./shell.nix { inherit pkgs; });
 
       # extend lib with my custom functions
       lib = nixpkgs.lib.extend (