Using the normal lts kernel seems to resolve my suspend/sway issues

nixos/foxtrot/default.nix

@@ -26,8 +26,6 @@
       inputs.hardware.nixosModules.common-pc-laptop-ssd
     ];
 
-  nixpkgs.overlays = [outputs.overlays.modifications];
-
   # TODO: hibernation? does sleep suffice?
   # TODO: perform a hardware scan
 
@@ -47,19 +45,6 @@
   boot.supportedFilesystems =
     pkgs.lib.mkForce ["btrfs" "cifs" "f2fs" "jfs" "ntfs" "reiserfs" "vfat" "xfs"];
 
-  boot.kernelPackages = pkgs.linuxPackagesFor (
-    pkgs.linux_6_5.override {
-      argsOverride = {
-        src = pkgs.fetchurl {
-          url = "https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.5.8.tar.xz";
-          sha256 = "sha256-KZzKiX2Q3qoXbuvsQvCoDut1Fq/tMwpFwU2p3ghs9xc=";
-        };
-        version = "6.5.8";
-        modDirVersion = "6.5.8";
-      };
-    }
-  );
-
   networking = {
     firewall = {
       enable = true;

overlays/default.nix

@@ -6,10 +6,6 @@
   # You can change versions, add patches, set compilation flags, anything really.
   # https://nixos.wiki/wiki/Overlays
   modifications = final: prev: {
-    linux_6_5 = prev.linux_6_5.override {
-      patches = [];
-      kernelPatches = [];
-    };
   };
 
   # When applied, the unstable nixpkgs set (declared in the flake inputs) will