In reply to @hexa:lossy.network
maybe disabledModules and import from ${nixpkgs-frigate}/modules/services/video/frigate.nix will do?

hmm, this:

  disabledModules = [
    "${pkgs}/nixos/modules/services/video/frigate.nix"
  ];
  imports = [
    "${pkgs-frigate}/nixos/modules/services/video/frigate.nix"
    "${pkgs-frigate}/nixos/modules/hardware/edgetpu.nix"
  ];
  environment.systemPackages = [
    pkgs-frigate.libedgetpu # userspace driver for coral.ai usb TPU
  ];
  hardware.edgetpu.usb.enable = true;

gives me this confusing error:

error:
       … while calling the 'seq' builtin
         at /nix/store/c9wv7i0af6mysmy65x6nvyfw5izzxv4g-source/lib/modules.nix:334:18:
          333|         options = checked options;
          334|         config = checked (removeAttrs config [ "_module" ]);
             |                  ^
          335|         _module = checked (config._module);

       … while evaluating a branch condition
         at /nix/store/c9wv7i0af6mysmy65x6nvyfw5izzxv4g-source/lib/modules.nix:273:9:
          272|       checkUnmatched =
          273|         if config._module.check && config._module.freeformType == null && merged.unmatchedDefns != [] then
             |         ^
          274|           let

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: cannot coerce a set to a string: { _type = "pkgs"; AAAAAASomeThingsFailToEvaluate = «thunk»; AMB-plugins = «thunk»; ArchiSteamFarm = «thunk»; AusweisApp2 = «thunk»; BeatSaberModManager = «thunk»; CHOWTapeModel = «thunk»; ChowCentaur = «thunk»; ChowKick = «thunk»; ChowPhaser = «thunk»; «22875 attributes elided» }

In reply to @hexa:lossy.network
at this point I would just recommend to directly use that branch temporarily (if you're on unstable/master anyway)

In reply to @hexa:lossy.network
at this point I would just recommend to directly use that branch temporarily (if you're on unstable/master anyway)

ok, I tried just changing my nixpkgs input to use that branch (inputs.nixpkgs.url = "github:mweinelt/nixpkgs/frigate-libedgetpu";), updated the flake, and tried to rebuild, but ended up with:

       error: undefined variable 'libedgeptu'
       at /nix/store/hizil0zplswmpj2528dzahh3ld6sd0ma-source/nixos/modules/hardware/coral.nix:29:45:
           28|     (mkIf cfg.usb.enable {
           29|       services.udev.packages = with pkgs; [ libedgeptu ];
             |                                             ^
           30|     })

In reply to @hexa:lossy.network
that makes no sense

In reply to @hexa:lossy.network
at this point I would just recommend to directly use that branch temporarily (if you're on unstable/master anyway)

In reply to @netpleb:matrix.org
Yep, I thought so too. Is somehow the libedgetpu package not actually in that PR's git tree?

In reply to @netpleb:matrix.org
Thanks very much for your help on the frigate/tpu stuff. I was able to get it working! The last piece I seem to be running into is: frigate.util.services WARNING : Did not detect hwaccel, using a GPU for accelerated video decoding is highly recommended

In reply to @hexa:lossy.network
ffmpeg.hwaccel_args

In reply to @hexa:lossy.network
huh, not on the cameras

In reply to @hexa:lossy.network
sent an image.

awesome! That fixed it. Thanks so much! As I was iterating on this, I ended adding:

  hardware.graphics = {
    enable = true;
    extraPackages = with pkgs; [ intel-media-driver ];
  };
  environment.sessionVariables = {
    LIBVA_DRIVER_NAME="radeonsi";
  };

but I am not sure if either of those are necessary. I will remove them to see, but I am wondering if a reboot is necessary to make sure?

hardware.graphics.enable = true;
services.frigate.vaapiDriver = "radeonsi";

In reply to @hexa:lossy.network
the intel-media-driver is for intel gpus