Add droidcam support

Temporary v4l2 overrideAttrs to work around breaking change in
NixOS/nixpkgs#134311

services/android.nix

@@ -1,7 +1,21 @@
-{ pkgs, ... }: {
+{ config, pkgs, ... }: {
 	programs.adb.enable = true;
 
+	boot = {
+		extraModulePackages = [ (config.boot.kernelPackages.v4l2loopback.overrideAttrs (old: {
+			outputs = ["out"];
+			postInstall = ''
+				make install-utils PREFIX=$out
+			'';
+		})) ];
+		kernelModules = [ "v4l2loopback" ];
+		extraModprobeConfig = ''
+			options v4l2loopback exclusive_caps=1
+		'';
+	};
+
 	environment.systemPackages = with pkgs; [
+		droidcam
 		adbfs-rootless
 		android-file-transfer
 		android-udev-rules
@@ -18,19 +32,13 @@
 			crop = "1080:2204:0:136";
 			title = "Touhou LostWord";
 		})
-
+		(mylib.mkAdbApp {
+			bin="adbscreen";
+		})
 		(pkgs.writeShellScriptBin "adbshot" ''
 			FILENAME="$(date --iso-8601=seconds).png"
 			adb shell screencap -p > "$FILENAME" && \
 			${pkgs.file}/bin/file "$FILENAME"
 		'')
-		(pkgs.writeShellScriptBin "adbscreen" ''
-			args=(
-				"--render-driver" "opengl" \
-				"--bit-rate" "12M" \
-				"$''\@" \
-			)
-			exec ${pkgs.scrcpy}/bin/scrcpy "''${args[''\@]}"
-		'')
 	];
 }