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feat(idle): no double-unlock after an encrypted hibernate resume

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hypridle locks hyprlock before every sleep -- right for suspend, but
redundant for hibernate: the LUKS passphrase entered at boot already gates
the resume, so the user typed a password twice. Add a nomarchy-hibernate-
unlock systemd unit (WantedBy hibernate.target, After systemd-hibernate.service
=> runs post-resume) that dismisses hyprlock, gated on the disk being LUKS-
encrypted. Suspend (and the RAM-resume phase of suspend-then-hibernate) keep
locking -- they have no passphrase gate; an unencrypted hibernate keeps its
lock too. idle.nix gains a pointer comment; roadmap item marked done.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Bernardo Magri
2026-06-14 13:06:10 +01:00
parent e0182ae7dd
commit 8853f6ae49
3 changed files with 31 additions and 4 deletions
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20
modules/nixos/default.nix
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@@ -114,6 +114,26 @@ in
services.upower.enable = lib.mkDefault true;
networking.networkmanager.enable = lib.mkDefault true;
# No double-unlock on hibernate. hypridle locks hyprlock before every
# sleep (right for suspend), but a hibernate resume is already gated by
# the LUKS passphrase entered at boot — so the user would type a password
# twice. Once we're back from an *encrypted* hibernate, drop the now-
# redundant hyprlock. Ordered After the hibernate service, so it runs
# post-resume; pulled in only by hibernate.target (suspend, and the
# RAM-resume phase of suspend-then-hibernate, stay locked — they have no
# passphrase gate). Gated on LUKS: an unencrypted hibernate keeps its lock.
systemd.services.nomarchy-hibernate-unlock =
lib.mkIf (builtins.attrNames config.boot.initrd.luks.devices != [ ]) {
description = "Dismiss hyprlock after resuming from an encrypted hibernate";
after = [ "systemd-hibernate.service" ];
wantedBy = [ "hibernate.target" ];
serviceConfig = {
Type = "oneshot";
# `-`: a missing hyprlock (idle disabled, or not locked) isn't a failure.
ExecStart = "-${pkgs.procps}/bin/pkill -x hyprlock";
};
};
# zsh as the default login shell (the desktop's shell experience —
# starship/bat/eza/zoxide — is configured home-side in shell.nix).
# programs.zsh.enable wires /etc/zshrc, completion and /etc/shells;