tweak some shell aliases

home-manager/home.nix

@@ -232,8 +232,15 @@ in {
         l = "ls";
         ls = "exa";
         nr = ''nix repl "<nixpkgs>"'';
+        "n." = "nix repl .";
         nsp = "nix-shell -p";
+        nsd = "nix show-derivation";
+        nb = "nix build";
+        nl = "nix log";
+        g = "git";
         lumi = "pushd ~/engineering/lumi; cached-nix-shell; popd";
+        bc = "bluetoothctl connect 94:DB:56:79:7D:86";
+        bd = "bluetoothctl disconnect 94:DB:56:79:7D:86";
       };
       interactiveShellInit = ''
         set fish_greeting

nixos/roles/default.nix

@@ -55,10 +55,6 @@ in {
   };
 
   environment.systemPackages = with pkgs; [
-    # v important.
-    cowsay # ponysay
-    ed # ed, man!
-    sl
     rlwrap
 
     #vim
@@ -83,8 +79,6 @@ in {
     which
     reptyr
     tmux
-    bc
-    mkpasswd
     shadow
 
     # archiving
@@ -101,6 +95,7 @@ in {
     lftp
     wget
     rsync
+    arp-scan
 
     #gitMinimal
   ];