feat: switch to unstable channel

users/gandalf/default.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ pkgs, unstable, ... }:
 let
   aliases = import ../../modules/aliases.nix;
 in
@@ -18,6 +18,9 @@ in
 
   home-manager.useGlobalPkgs = true;
   home-manager.useUserPackages = true;
+  home-manager.extraSpecialArgs = {
+    inherit unstable;
+  };
 
   home-manager.users.gandalf = { pkgs, ... }: {
     imports = [ ./modules ];

users/gandalf/modules/default.nix

@@ -5,6 +5,7 @@
     ./git.nix
     ./gnupg.nix
     ./neovim.nix
+    ./ssh.nix
     ./sway.nix
     ./tmux.nix
     ./udiskie.nix

users/gandalf/modules/ssh.nix

@@ -0,0 +1,9 @@
+{ ... }: {
+  programs.ssh = {
+    enable = true;
+  };
+
+  services.ssh-agent = {
+    enable = true;
+  };
+}