FYI for updating to NixOS 25.05 Warbler, due to commit 58d1ecc, I made the following changes to the overlay on my systems:
{
nixpkgs.overlays = [
(final: prev: {
gnome-keyring = prev.gnome-keyring.overrideAttrs (oldAttrs: {
mesonFlags = (builtins.filter (flag: flag != "-Dssh-agent=true") oldAttrs.mesonFlags) ++ [
"-Dssh-agent=false"
];
});
})
];
}