home-manager: modularize home configurations

modules/home-manager/alacritty.nix

@@ -0,0 +1,31 @@
+{ config, lib, ... }:
+with lib;
+
+let
+  cfg = config.custom-hm.alacritty;
+in
+{
+  options.custom-hm.alacritty = {
+    enable = mkEnableOption "alacritty";
+  };
+
+  config = mkIf cfg.enable {
+    programs.alacritty = {
+      enable = true;
+      settings = {
+        shell = {
+          program = config.programs.zellij.package + "/bin/zellij";
+          args = [
+            "attach"
+            "-c"
+          ];
+        };
+        font.size = 10.0;
+        window = {
+          resize_increments = true;
+          dynamic_padding = true;
+        };
+      };
+    };
+  };
+}