added yazi as filechooser for xdg, and added override for some

conflicted package

nixos/system/boot.nix

@@ -1,7 +1,15 @@
 { pkgs, ... }:
 {
   boot = {
-    kernelPackages = pkgs.linuxPackages_latest;
+    # TODO: drop the extend once NixOS/nixpkgs#575861 lands (v4l2loopback ships
+    # depmod files that conflict with the kernel's in linux-*-modules).
+    kernelPackages = pkgs.linuxPackages_latest.extend (
+      _: prev: {
+        v4l2loopback = prev.v4l2loopback.overrideAttrs (old: {
+          installFlags = (old.installFlags or [ ]) ++ [ "DEPMOD=true" ];
+        });
+      }
+    );
 
     loader = {
       systemd-boot.enable = true;