home: create 'modules/home' folder

Consolidating all modules under the same path, to clear out the
top-level directory.

modules/home/aliases/default.nix

@@ -0,0 +1,26 @@
+{ config, lib, ... }:
+let
+  cfg = config.my.home.aliases;
+in
+{
+  options.my.home.aliases = with lib; {
+    enable = my.mkDisableOption "shell aliases configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    home = {
+      shellAliases = {
+        # I like pretty colors
+        diff = "diff --color=auto";
+        grep = "grep --color=auto";
+        egrep = "egrep --color=auto";
+        fgrep = "fgrep --color=auto";
+        ls = "ls --color=auto";
+
+        # Well-known ls aliases
+        l = "ls -alh";
+        ll = "ls -l";
+      };
+    };
+  };
+}