diff --git a/overlays/preferences.nix b/overlays/preferences.nix
index a4387703b..0978d0f06 100644
--- a/overlays/preferences.nix
+++ b/overlays/preferences.nix
@@ -41,11 +41,12 @@ in
   #   hareHook = crossHareHook;
   # };
 
-  # XXX(2024-12-26): prefer pre-built electron because otherwise it takes 4 hrs to build from source.
+  # XXX(2024-12-26 - 2025-04-30): prefer pre-built electron because otherwise it takes 4 hrs to build from source.
   # but wait 2 days after staging -> master merge, and normal electron should be cached and safe to remove
   electron = electron-bin;
   electron_33 = electron_33-bin;
   electron_34 = electron_34-bin;
+  electron_35 = electron_35-bin;
 
   # evolution-data-server = super.evolution-data-server.override {
   #   # OAuth depends on webkitgtk_4_1: old, forces an annoying recompilation
diff --git a/pkgs/by-name/nixpkgs-bootstrap/master.nix b/pkgs/by-name/nixpkgs-bootstrap/master.nix
index 09007f71a..7f34e503b 100644
--- a/pkgs/by-name/nixpkgs-bootstrap/master.nix
+++ b/pkgs/by-name/nixpkgs-bootstrap/master.nix
@@ -8,8 +8,8 @@
   mkNixpkgs ? import ./mkNixpkgs.nix {},
 }:
 mkNixpkgs {
-  rev = "151efeb9046efa2e3d8f83ab85aaf905d37f15fd";
-  sha256 = "sha256-+CgIcpgFkGeKZ/pvkL5hqKnm7Qx7nQEg/JkHNad9ueQ=";
-  version = "0-unstable-2025-04-30";
+  rev = "da8f0e9494ad29bd6f7d21170096b1263fd03dc4";
+  sha256 = "sha256-Em1xFfFOZ+Pq3fJxYDzECLeCEqT/uld02iCWlFc62so=";
+  version = "0-unstable-2025-05-01";
   branch = "master";
 }
diff --git a/pkgs/by-name/nixpkgs-bootstrap/staging-next.nix b/pkgs/by-name/nixpkgs-bootstrap/staging-next.nix
index 0284d23ea..073577f41 100644
--- a/pkgs/by-name/nixpkgs-bootstrap/staging-next.nix
+++ b/pkgs/by-name/nixpkgs-bootstrap/staging-next.nix
@@ -2,8 +2,8 @@
   mkNixpkgs ? import ./mkNixpkgs.nix {},
 }:
 mkNixpkgs {
-  rev = "8639599e86703017b8d651f9caedb65b0e527fda";
-  sha256 = "sha256-iWY8O7rOI/7QuVVDnsBde05vvULPhfeBvoD8dz1h/TA=";
-  version = "0-unstable-2025-04-29";
+  rev = "636429202b5a38f29a6b10d6c1dc008b95f2b5da";
+  sha256 = "sha256-QuFerZhLUY6NwzU0JO2l0KuqolLVDwQ9BOlj1b/kepY=";
+  version = "0-unstable-2025-04-30";
   branch = "staging-next";
 }
diff --git a/pkgs/by-name/nixpkgs-bootstrap/staging.nix b/pkgs/by-name/nixpkgs-bootstrap/staging.nix
index f7dd8ecfd..2ee742c46 100644
--- a/pkgs/by-name/nixpkgs-bootstrap/staging.nix
+++ b/pkgs/by-name/nixpkgs-bootstrap/staging.nix
@@ -2,8 +2,8 @@
   mkNixpkgs ? import ./mkNixpkgs.nix {},
 }:
 mkNixpkgs {
-  rev = "947f44e54fd815159920740f59f8efb1a0f6e28c";
-  sha256 = "sha256-TKJZ3TptCy4f89/wpxesMUEZ1HBTTZ1AYZT61zYYJU0=";
-  version = "0-unstable-2025-04-30";
+  rev = "050488ac1637a57ecc5e4ef7cd9523542a554328";
+  sha256 = "sha256-yJg4AKcAxH1WrX2BtG1NMitIxM1VbgVb+hD5FWrSS/o=";
+  version = "0-unstable-2025-05-01";
   branch = "staging";
 }