feat: use pwndbg as default gdb

modules/optional/dev/default.nix

@@ -4,11 +4,6 @@
     ./yubikey.nix
   ];
 
-  environment.systemPackages = with pkgs; [
-    (gdb.override { enableDebuginfod = true; })
-    hotspot
-  ];
-
   environment.enableDebugInfo = true;
   services.nixseparatedebuginfod.enable = true;
 }

users/myuser/dev/gdb.nix

@@ -1,8 +1,29 @@
-{
+{ pkgs, ... }: let
+  # pwndbg wraps a gdb binary for us, but we want debuginfod in there too.
+  # Also make it the default gdb.
+  pwndbgWithDebuginfod = (pkgs.pwndbg.override {
+    gdb = pkgs.gdb.override {
+      enableDebuginfod = true;
+    };
+  }).overrideAttrs (_finalAttrs: previousAttrs: {
+    installPhase = previousAttrs.installPhase + ''
+      ln -s $out/bin/pwndbg $out/bin/gdb
+    '';
+  });
+in {
+  home.packages = [
+    pwndbgWithDebuginfod
+    pkgs.hotspot
+  ];
+
   home.file.gdbinit = {
     target = ".gdbinit";
     text = ''
+      set debuginfod enabled on
       set auto-load safe-path /
+      set disassembly-flavor intel
+      set history save on
+      set print pretty on
     '';
   };
 }