feat(btop): autostart btop on misc monitor

note: may not work on very small monitor. needs to auto change to `btm`
if conditions are met.

apps/btop/default.nix

@@ -1,12 +1,26 @@
-{ pkgs, ... }:
 {
+  pkgs,
+  lib,
+  myConfig,
+  ...
+}: {
   programs.btop = {
     enable = true;
-    package = pkgs.btop.override { rocmSupport = true; };
+    package = pkgs.btop.override {rocmSupport = true;};
     settings = {
       vim_keys = true;
       color_theme = "TTY";
       theme_background = false;
+      presets = "cpu:1:default,proc:0:default cpu:0:default,mem:0:default,net:0:default cpu:0:block,net:0:tty cpu:0:default,mem:0:default,net:0:default,gpu0:0:default";
     };
   };
+
+  wayland.windowManager.hyprland.settings = lib.mkIf (myConfig.btop.autostart) {
+    exec-once = [
+      "uwsm app -- xdg-terminal-exec -e btop -p 2"
+    ];
+    windowrulev2 = [
+      "monitor ${myConfig.btop.monitor}, title:^(btop)$"
+    ];
+  };
 }

config.nix

@@ -26,6 +26,10 @@
           update = "sudo nixos-rebuild switch --flake ~/.config/nixos/#hakase";
         };
       };
+      btop = {
+        autostart = true;
+        monitor = "DP-1";
+      };
       hyprland = {
         monitors = [
           "DP-1,highres@165,0x1080,1,vrr,0,bitdepth,10,cm,hdr,sdrbrightness,1.3"
@@ -88,6 +92,10 @@
           update = "sudo nixos-rebuild switch --flake ~/.config/nixos/#macbook";
         };
       };
+      btop = {
+        autostart = false;
+        monitor = "eDP-1";
+      };
       hyprland = {
         # M1 Pro/Max/Air screens are usually built-in eDP-1.
         # HiDPI scale 2.0 is safe for Retina.