diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..79b5594
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+**/.DS_Store
diff --git a/modules/common/default.nix b/modules/common/default.nix
index 1ba2660..e761356 100644
--- a/modules/common/default.nix
+++ b/modules/common/default.nix
@@ -1,4 +1,4 @@
-{...}: {
+{pkgs, ...}: {
   imports = [../users/devin.nix];
 
   nix = {
@@ -13,4 +13,5 @@
   nixpkgs.config.allowUnfree = true;
 
   programs.fish.enable = true;
+  environment.shells = [ pkgs.fish ];
 }
diff --git a/modules/darwin/default.nix b/modules/darwin/default.nix
index 82cdee1..57c5708 100644
--- a/modules/darwin/default.nix
+++ b/modules/darwin/default.nix
@@ -1,5 +1,6 @@
 {lib, ...}: {
   system.stateVersion = 6;
+  system.primaryUser = "devin";
   nixpkgs.hostPlatform = lib.mkDefault "aarch64-darwin";
 
   homebrew = {