nixos/hosts/hardware/FredOS-Macbook.nix

{ config, lib, pkgs, modulesPath, ... }:

{
  imports = [
    (modulesPath + "/installer/scan/not-detected.nix")
  ];

  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usb_storage" "usbhid" "sd_mod" ];
  # i915 in initrd = early KMS, so plymouth can draw from the first second
  boot.initrd.kernelModules = [ "i915" ];
  boot.kernelModules = [ "kvm-intel" ];
  boot.extraModulePackages = [ config.boot.kernelPackages.broadcom_sta ];
  boot.blacklistedKernelModules = [ "b43" "bcma" "ssb" ];
  boot.kernelParams = [ "acpi_osi=" ];

  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  fileSystems."/" = {
    device = "/dev/disk/by-uuid/e295ac26-bf7e-4b93-bc97-74c3c01de0e3";
    fsType = "ext4";
  };

  fileSystems."/boot" = {
    device = "/dev/disk/by-uuid/F698-F2B7";
    fsType = "vfat";
    options = [ "fmask=0077" "dmask=0077" ];
  };

  swapDevices = [ ];

  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
  networking.hostName = "FredOS-Macbook";
  hardware.enableRedistributableFirmware = true;
  hardware.facetimehd.enable = true;

  # VA-API hardware video decode. This is a Haswell-ULT GPU (gen7.5) → i965;
  # iHD is gen8+ only and can't init here, so pin the name to skip its probe.
  hardware.graphics.extraPackages = [ pkgs.intel-vaapi-driver ];
  environment.sessionVariables.LIBVA_DRIVER_NAME = "i965";

  # Legacy DRM iface: cursor plane moves via immediate ioctl instead of
  # vblank-batched atomic commits — cursor latency drops below the 60Hz
  # frame floor. Revert if output glitches (legacy path is less tested).
  environment.sessionVariables.AQ_NO_ATOMIC = "1";

  # Pin to the 6.12 LTS kernel: the out-of-tree broadcom_sta (Wi-Fi) and
  # facetimehd (iSight) modules don't build against linuxPackages_latest
  # (7.x) — broadcom-sta's wl_cfg80211 ops no longer match the cfg80211 API.
  # 6.12 LTS is the newest kernel both modules compile against. Overrides
  # common.nix's linuxPackages_latest.
  boot.kernelPackages = lib.mkForce pkgs.linuxPackages_6_12;

  # wait_prepare/wait_finish were removed from struct vb2_ops in Linux 6.8
  nixpkgs.overlays = [
    # Legacy DRM iface (AQ_NO_ATOMIC) cursor fixes, see patch:
    # 1. moveCursor only scheduled a frame — cursor still waited for vblank.
    #    Issue the immediate drmModeMoveCursor ioctl like wlroots did.
    # 2. Commits without cursor flags nulled the cursor plane → cursor
    #    vanished while idle. Only null when actually hidden.
    # Both present upstream as of aquamarine 0.11.0 / main (July 2026).
    (final: prev: {
      aquamarine = prev.aquamarine.overrideAttrs (old: {
        patches = (old.patches or [ ]) ++ [ ../../patches/aquamarine-legacy-cursor.patch ];
      });
    })
    (final: prev: {
      linuxPackages_6_12 = prev.linuxPackages_6_12.extend (lpFinal: lpPrev: {
        facetimehd = lpPrev.facetimehd.overrideAttrs (old: {
          postPatch = (old.postPatch or "") + ''
            sed -i '/\.wait_prepare[[:space:]]*=.*vb2_ops_wait_prepare/d' fthd_v4l2.c
            sed -i '/\.wait_finish[[:space:]]*=.*vb2_ops_wait_finish/d' fthd_v4l2.c
          '';
        });
      });
    })
  ];

  # allowInsecurePredicate (broadcom-sta + pnpm) lives in common.nix now.

  hardware.bluetooth = {
    enable = true;
    powerOnBoot = true;
    settings = {
      General = {
        Enable = "Source,Sink,Media,Socket";
        Experimental = true;
      };
    };
  };

  system.stateVersion = "25.11";
}