diff --git a/darwin/kuro/services/tailscale.nix b/darwin/kuro/services/tailscale.nix
index ef506098..54ad8747 100644
--- a/darwin/kuro/services/tailscale.nix
+++ b/darwin/kuro/services/tailscale.nix
@@ -1,3 +1,6 @@
-{...}: {
-  services.tailscale.enable = true;
+{stablePkgs, ...}: {
+  services.tailscale = {
+    enable = true;
+    package = stablePkgs.tailscale;
+  };
 }
diff --git a/home/accounts/fastmail.nix b/home/accounts/fastmail.nix
index b84d7477..2fc39289 100644
--- a/home/accounts/fastmail.nix
+++ b/home/accounts/fastmail.nix
@@ -1,4 +1,8 @@
-{config, ...}: {
+{
+  config,
+  pkgs,
+  ...
+}: {
   sops = {
     secrets."accounts/mail/fastmail" = {};
   };
@@ -36,7 +40,7 @@
     };
   };
   programs.mbsync.enable = true;
-  services.mbsync.enable = true;
+  services.mbsync.enable = pkgs.stdenv.isLinux;
   # accounts.email.accounts.<name>.mbsync.create
   # services.mbsync.enable = true;
 }
diff --git a/home/apps/zed.nix b/home/apps/zed.nix
index 5f3fb170..d8ffe69b 100644
--- a/home/apps/zed.nix
+++ b/home/apps/zed.nix
@@ -2,6 +2,7 @@
   pkgs,
   lib,
   device,
+  stablePkgs,
   ...
 }: {
   home.packages = with pkgs; [
@@ -174,6 +175,7 @@
         };
       }
     ];
+    package = stablePkgs.zed-editor;
     extraPackages = with pkgs; [
       nixd
       nil