diff --git a/.github/workflows/build-sm64.yml b/.github/workflows/build-sm64.yml
index cd98d89..c950e8d 100644
--- a/.github/workflows/build-sm64.yml
+++ b/.github/workflows/build-sm64.yml
@@ -16,14 +16,19 @@ jobs:
       - name: Install Nix
         run: |
           sh <(curl -L https://nixos.org/nix/install) --daemon
-          . /home/runner/.nix-profile/etc/profile.d/nix.sh
+          echo ". /nix/var/nix/profiles/default/etc/profile.d/nix.sh" >> $GITHUB_ENV
+          echo "Nix installed successfully"
 
       - name: Set Up Devenv
         run: |
-          nix-env --install --attr devenv -f https://github.com/NixOS/nixpkgs/tarball/nixpkgs-unstable
+          . /nix/var/nix/profiles/default/etc/profile.d/nix.sh
+          nix-env -iA nixpkgs.devenv -f https://github.com/NixOS/nixpkgs/tarball/nixpkgs-unstable
+          mkdir -p /root/.config/devenv/
           cp devenv.nix /root/.config/devenv/
           cp devenv.yaml /root/.config/devenv/
           devenv up
+        env:
+          NIX_PATH: nixpkgs=/nix/var/nix/profiles/default/etc/profile.d/nix.sh
 
       - name: Install Android Emulator (AArch64 & ARMv7)
         run: |