diff --git a/flake.lock b/flake.lock
index 4849c31..d259d93 100644
--- a/flake.lock
+++ b/flake.lock
@@ -200,11 +200,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1771903837,
-        "narHash": "sha256-sdaqdnsQCv3iifzxwB22tUwN/fSHoN7j2myFW5EIkGk=",
+        "lastModified": 1772047000,
+        "narHash": "sha256-7DaQVv4R97cii/Qdfy4tmDZMB2xxtyIvNGSwXBBhSmo=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "e764fc9a405871f1f6ca3d1394fb422e0a0c3951",
+        "rev": "1267bb4920d0fc06ea916734c11b0bf004bbe17e",
         "type": "github"
       },
       "original": {
diff --git a/frame12/modules/niri/niri_conf.nix b/frame12/modules/niri/niri_conf.nix
index 8362eb2..c673d46 100755
--- a/frame12/modules/niri/niri_conf.nix
+++ b/frame12/modules/niri/niri_conf.nix
@@ -37,7 +37,16 @@ in
 
     nixpkgs.config.allowUnfree = config.niriwm.useNonFree;
 
-    # Portal setup is handled by programs.niri.enable (niri-portals.conf)
+    # Portal config: programs.niri.enable adds xdg-desktop-portal-gnome
+    # and niri-portals.conf via configPackages, but the portal daemon
+    # doesn't reliably pick up configPackages files. Setting config
+    # explicitly ensures ScreenCast routes to the GNOME portal.
+    xdg.portal.config.niri = {
+      default = [ "gnome" "gtk" ];
+      "org.freedesktop.impl.portal.Access" = [ "gtk" ];
+      "org.freedesktop.impl.portal.Notification" = [ "gtk" ];
+      "org.freedesktop.impl.portal.Secret" = [ "gnome-keyring" ];
+    };
     xdg.sounds.enable = true;
 
     ###
@@ -76,8 +85,7 @@ in
     environment.sessionVariables = {
       # use wayland
       MOZ_ENABLE_WAYLAND = "1";
-      T_QPA_PLATFORM = "wayland";
-      # GDK_BACKEND must NOT be set globally - it breaks the screencast portal
+      # QT_QPA_PLATFORM and GDK_BACKEND must NOT be set - they break the screencast portal
       WLR_NO_HARDWARE_CURSORS = "1";
       ELECTRON_OZONE_PLATFORM_HINT = "auto";
       NIXOS_OZONE_WL = "1";
diff --git a/frame12/modules/niri/niri_home.nix b/frame12/modules/niri/niri_home.nix
index df9b086..d6afb5e 100644
--- a/frame12/modules/niri/niri_home.nix
+++ b/frame12/modules/niri/niri_home.nix
@@ -17,11 +17,9 @@
     # because we manage the niri config through dotfiles.
     # The system-level module enables niri via programs.niri.enable
 
-    # Import systemd variables for niri
-    systemd.user.sessionVariables = {
-      WAYLAND_DISPLAY = "wayland-1";
-      XDG_CURRENT_DESKTOP = "niri";
-    };
+    # Niri sets WAYLAND_DISPLAY and XDG_CURRENT_DESKTOP automatically.
+    # Manually overriding session vars conflicts with xdg-desktop-portal-gnome
+    # screencasting (breaks Zoom screen sharing).
 
     # Cursor is managed by Stylix (stylix.cursor in frame12/default.nix)
 
diff --git a/jaci/modules/niri/niri_conf.nix b/jaci/modules/niri/niri_conf.nix
index ef14fb1..e704fbe 100644
--- a/jaci/modules/niri/niri_conf.nix
+++ b/jaci/modules/niri/niri_conf.nix
@@ -40,7 +40,16 @@ in
 
     nixpkgs.config.allowUnfree = config.niriwm.useNonFree;
 
-    # Portal setup is handled by programs.niri.enable (niri-portals.conf)
+    # Portal config: programs.niri.enable adds xdg-desktop-portal-gnome
+    # and niri-portals.conf via configPackages, but the portal daemon
+    # doesn't reliably pick up configPackages files. Setting config
+    # explicitly ensures ScreenCast routes to the GNOME portal.
+    xdg.portal.config.niri = {
+      default = [ "gnome" "gtk" ];
+      "org.freedesktop.impl.portal.Access" = [ "gtk" ];
+      "org.freedesktop.impl.portal.Notification" = [ "gtk" ];
+      "org.freedesktop.impl.portal.Secret" = [ "gnome-keyring" ];
+    };
     xdg.sounds.enable = true;
 
     ###
@@ -75,8 +84,7 @@ in
     environment.sessionVariables = {
       # use wayland
       MOZ_ENABLE_WAYLAND = "1";
-      T_QPA_PLATFORM = "wayland";
-      # GDK_BACKEND must NOT be set globally - it breaks the screencast portal
+      # QT_QPA_PLATFORM and GDK_BACKEND must NOT be set - they break the screencast portal
       WLR_NO_HARDWARE_CURSORS = "1";
       ELECTRON_OZONE_PLATFORM_HINT = "auto";
       NIXOS_OZONE_WL = "1";
diff --git a/jaci/modules/niri/niri_home.nix b/jaci/modules/niri/niri_home.nix
index e0a01d3..7b4ddfe 100644
--- a/jaci/modules/niri/niri_home.nix
+++ b/jaci/modules/niri/niri_home.nix
@@ -17,11 +17,9 @@
     # because we manage the niri config through dotfiles.
     # The system-level module enables niri via programs.niri.enable
 
-    # Import systemd variables for niri
-    systemd.user.sessionVariables = {
-      WAYLAND_DISPLAY = "wayland-1";
-      XDG_CURRENT_DESKTOP = "niri";
-    };
+    # Niri sets WAYLAND_DISPLAY and XDG_CURRENT_DESKTOP automatically.
+    # Manually overriding session vars conflicts with xdg-desktop-portal-gnome
+    # screencasting (breaks Zoom screen sharing).
 
     # Cursor is managed by Stylix (stylix.cursor in jaci/default.nix)
 
diff --git a/nate-work/modules/niri/niri_conf.nix b/nate-work/modules/niri/niri_conf.nix
index f9f38d6..07d23f7 100644
--- a/nate-work/modules/niri/niri_conf.nix
+++ b/nate-work/modules/niri/niri_conf.nix
@@ -28,7 +28,16 @@
 
         nixpkgs.config.allowUnfree = config.niriwm.useNonFree;
         
-        # Portal setup is handled by programs.niri.enable (niri-portals.conf)
+        # Portal config: programs.niri.enable adds xdg-desktop-portal-gnome
+        # and niri-portals.conf via configPackages, but the portal daemon
+        # doesn't reliably pick up configPackages files. Setting config
+        # explicitly ensures ScreenCast routes to the GNOME portal.
+        xdg.portal.config.niri = {
+          default = [ "gnome" "gtk" ];
+          "org.freedesktop.impl.portal.Access" = [ "gtk" ];
+          "org.freedesktop.impl.portal.Notification" = [ "gtk" ];
+          "org.freedesktop.impl.portal.Secret" = [ "gnome-keyring" ];
+        };
         xdg.sounds.enable = true;
 
         ###
@@ -71,8 +80,7 @@
           # use wayland
           MOZ_ENABLE_WAYLAND = "1";
           FIREFOX_USE_SYSTEM_THEME = "true";
-          T_QPA_PLATFORM = "wayland";
-          # GDK_BACKEND must NOT be set globally - it breaks the screencast portal
+          # QT_QPA_PLATFORM and GDK_BACKEND must NOT be set - they break the screencast portal
           WLR_NO_HARDWARE_CURSORS = "1";
           ELECTRON_OZONE_PLATFORM_HINT = "auto";
           NIXOS_OZONE_WL = "1";
diff --git a/nate-work/modules/niri/niri_home.nix b/nate-work/modules/niri/niri_home.nix
index 130698d..247c6c4 100644
--- a/nate-work/modules/niri/niri_home.nix
+++ b/nate-work/modules/niri/niri_home.nix
@@ -17,11 +17,9 @@
     # because we manage the niri config through dotfiles.
     # The system-level module enables niri via programs.niri.enable
 
-    # Import systemd variables for niri
-    systemd.user.sessionVariables = {
-      WAYLAND_DISPLAY = "wayland-1";
-      XDG_CURRENT_DESKTOP = "niri";
-    };
+    # Niri sets WAYLAND_DISPLAY and XDG_CURRENT_DESKTOP automatically.
+    # Manually overriding session vars conflicts with xdg-desktop-portal-gnome
+    # screencasting (breaks Zoom screen sharing).
 
     # Cursor is managed by Stylix (stylix.cursor in nate-work/default.nix)
 
diff --git a/nate/modules/niri/niri_conf.nix b/nate/modules/niri/niri_conf.nix
index e5445c2..3b1b069 100644
--- a/nate/modules/niri/niri_conf.nix
+++ b/nate/modules/niri/niri_conf.nix
@@ -41,7 +41,16 @@ in
 
     nixpkgs.config.allowUnfree = config.niriwm.useNonFree;
 
-    # Portal setup is handled by programs.niri.enable (niri-portals.conf)
+    # Portal config: programs.niri.enable adds xdg-desktop-portal-gnome
+    # and niri-portals.conf via configPackages, but the portal daemon
+    # doesn't reliably pick up configPackages files. Setting config
+    # explicitly ensures ScreenCast routes to the GNOME portal.
+    xdg.portal.config.niri = {
+      default = [ "gnome" "gtk" ];
+      "org.freedesktop.impl.portal.Access" = [ "gtk" ];
+      "org.freedesktop.impl.portal.Notification" = [ "gtk" ];
+      "org.freedesktop.impl.portal.Secret" = [ "gnome-keyring" ];
+    };
     xdg.sounds.enable = true;
 
     ###
@@ -82,8 +91,7 @@ in
       # use wayland
       MOZ_ENABLE_WAYLAND = "1";
       FIREFOX_USE_SYSTEM_THEME = "true";
-      T_QPA_PLATFORM = "wayland";
-      # GDK_BACKEND must NOT be set globally - it breaks the screencast portal
+      # QT_QPA_PLATFORM and GDK_BACKEND must NOT be set - they break the screencast portal
       WLR_NO_HARDWARE_CURSORS = "1";
       ELECTRON_OZONE_PLATFORM_HINT = "auto";
       NIXOS_OZONE_WL = "1";
diff --git a/nate/modules/niri/niri_home.nix b/nate/modules/niri/niri_home.nix
index 1bfaa2d..eb8f165 100644
--- a/nate/modules/niri/niri_home.nix
+++ b/nate/modules/niri/niri_home.nix
@@ -17,11 +17,9 @@
     # because we manage the niri config through dotfiles.
     # The system-level module enables niri via programs.niri.enable
 
-    # Import systemd variables for niri
-    systemd.user.sessionVariables = {
-      WAYLAND_DISPLAY = "wayland-1";
-      XDG_CURRENT_DESKTOP = "niri";
-    };
+    # Niri sets WAYLAND_DISPLAY and XDG_CURRENT_DESKTOP automatically.
+    # Manually overriding session vars conflicts with xdg-desktop-portal-gnome
+    # screencasting (breaks Zoom screen sharing).
 
     # Cursor is managed by Stylix (stylix.cursor in nate/default.nix)
 
diff --git a/shared/modules/home-manager/programs.nix b/shared/modules/home-manager/programs.nix
index 2781e22..8ace223 100644
--- a/shared/modules/home-manager/programs.nix
+++ b/shared/modules/home-manager/programs.nix
@@ -31,7 +31,6 @@ in
     wofi.enable = lib.mkEnableOption "enable wofi (application launcher)";
     keepassxc.enable = lib.mkEnableOption "enable keepassxc (password manager)";
     opencode.enable = lib.mkEnableOption "enable opencode (AI coding assistant)";
-    adb.enable = lib.mkEnableOption "enable adb";
 
     # Apps (pass-through to underlying modules)
     firefox.enable = lib.mkEnableOption "enable firefox (web browser)";
@@ -79,7 +78,6 @@ in
         helix.enable = lib.mkDefault true;
         stylePreview.enable = lib.mkDefault true;
         json2nix.enable = lib.mkDefault true;
-        adb.enable = lib.mkDefault true;
       };
     })
 
@@ -107,10 +105,6 @@ in
       programs.wofi.enable = true;
     })
 
-    (lib.mkIf cfg.adb.enable {
-      programs.adb.enable = true;
-    })
-
     (lib.mkIf cfg.opencode.enable {
       programs.opencode = {
         enable = true;