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test(hibernate): #76 slice 3 — V2 hibernate→resume VM check (PASS)

Add checks.hibernate: a runNixOSTest modeled on nixpkgs' hibernate.nix,
wired to the actual risk #76 introduces — coexistence with the zram swap
that oom.nix now enables by default. It imports oom.nix, puts the disk
swap at a lower priority than zram with an explicit boot.resumeDevice,
and uses systemd-initrd. The test drives a full
hibernate -> power-off -> resume -> crash cycle: a volatile ramfs marker
survives resume but NOT a crash-boot (proving genuine resume), and it
asserts zram sits at priority 100 while the disk swap is lower, so the
hibernate image lands on disk rather than volatile zram.

What QEMU genuinely can't do — feed a boot-time resume_offset for a btrfs
swapfile (offset only exists after first-boot allocation) or drive a
LUKS-initrd unlock — stays a V3 laptop check (HARDWARE-QUEUE, dev box
already runs that exact layout), plus the no-swap notify in a real
session. With this, all V0/V1/V2 work on #76 is done; #76 collapses to a
[blocked:hw] stub and the design record moves to ROADMAP.

Verification: V2 PASS — nix build .#checks.x86_64-linux.hibernate built
the driver fresh and exited 0. nix flake check --no-build green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-10 19:45:47 +01:00

7.7 KiB

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Backlog — the prioritized task queue

This is the only executable work list for agents. Product themes and v1.0 intent live in docs/VISION.md; design history in docs/ROADMAP.md; map in docs/README.md and agent/README.md.

Rules:

Agents take the topmost actionable item (see LOOP.md). Finished items are deleted here — the journal + git log are the record; durable design notes get a ✓-entry in docs/ROADMAP.md (and/or a note in VISION) if worth keeping.
Item numbers are stable IDs — never renumbered or reused. A gap in the sequence means shipped (or dropped) work; new items take the next free number regardless of tier.
Tags: [blocked:hw] needs real hardware (see HARDWARE-QUEUE.md) · [human] needs Bernardo · [stuck] two failed attempts, needs help · [big] must be split before starting.
Agents may append to PROPOSED and Decisions freely (include VISION § … or ROADMAP § … when relevant); only Bernardo moves items out of PROPOSED into the tiers.

NOW

(empty — NEXT's top item is the queue head)

76. Hibernation default — all agent work shipped `[blocked:hw]`

Hibernation + zram on by default (product intent, Bernardo 2026-07-10). All V0/V1/V2 slices done (2026-07-10); only the V3 laptop check remains (HARDWARE-QUEUE → "AMD dev box"). Design record in ROADMAP § Hibernation + zram by default. Shipped:

zram default (modules/nixos/oom.nix, zstd/50%/prio 100) — checks.zram-swap.
Installer/template already default new installs to a RAM-sized encrypted @swap swapfile + resume_offset wiring; swapSize=0 = no-swap opt-out.
docs/MIGRATION.md enable-hibernation runbook (existing machines).
rofi.nix Power → Hibernate: kept unconditional, notifies on failure.
checks.hibernate VM test (V2 PASS) — hibernate→resume→crash round-trip; zram (prio 100) doesn't swallow the image, disk swap carries it.

V3 remaining: real hibernate→resume on the LUKS+@swap swapfile+offset layout (QEMU can't feed a boot-time offset / drive LUKS-initrd) + the no-swap notify in a real session. Steps queued in HARDWARE-QUEUE. Close #76 on PASS.

LATER

Wallpapers artifact split (ROADMAP § Faster switches — decided, deferred): pinned Nomarchy-wallpapers input so a state write stops re-copying 86 MB. Follow-on: pre-built theme variants if switches are still slow after.
Installer round 2 (ROADMAP § Installer): multi-disk BTRFS RAID, impermanence, BIOS/legacy boot.
Boot-from-snapshot: a systemd-boot equivalent of grub-btrfs.
Night-light geo mode: lat/long auto sunset/sunrise (means wlsunset).
Per-theme icon overrides / more icon packs (ROADMAP § Icon themes).
MIPI/IPU software-ISP camera support (no-UVC machines).
VPN exit-node richer display (country/city) (optional).
NixOS release bump → v2 [human]: deliberate, hand-edited, never automated; the previous attempt was discarded (2026-06-22) over a Hyprland OOM blocker — see MEMORY.md before retrying (NOW#3 should also soften that blocker class).

FUTURE (decided deferred — not the agent queue head)

Work we intend someday but explicitly not NEXT. Agents do not pick these unless Bernardo promotes one into NEXT/NOW.

20. KVM runner → VM suite in CI `[human]`

Status (2026-07-10): keep eval-only CI on the current Gitea stack (act_runner in docker-compose on the 4c/4 GB IONOS VPS). Nested KVM + RAM headroom on that host are a poor fit next to Gitea; full checks.* VMs stay local / promotion-time until a separate KVM-capable machine exists.

When ready: register a second runner (host-mode nix + /dev/kvm, label nix-kvm — not the existing docker eval runner), then uncomment the vm-checks job in .gitea/workflows/check.yml (runs-on: nix-kvm, nix flake check + toplevel/HM builds). Do not enable the job until that label is online (Gitea queues forever otherwise).

Formatter — adopt later `[human]`

Intent: add a Nix formatter (likely nixfmt-rfc-style) in a dedicated pass: reformat the tree once, document in CONVENTIONS, optional CI check. Not the queue head — no drive-by reformats until that pass.

Hibernation + zram

Promoted → NEXT #76 (2026-07-10).

PROPOSED (agent suggestions — await human triage)

Agents: append here with a one-paragraph pitch (what/why/cost). Do not implement. Bernardo moves accepted items into a tier.

Open work only. Shipped exam/A–C items (#47–#63, #14, #52 theme high-ROI, etc.) live in the journal + ROADMAP — not here.

Product / day-2

(Battery charge-limit instant → shipped 2026-07-10; V3 PASS Latitude 5310: Custom charge type + live menu + unplug re-apply.)

(Portal/Flatpak IR camera → #71 docs (a); (b)/(c) still need T14s.)

(Post-install hardware hints residual → #73.)

(Look & Feel submenu → already shipped (Theme / wallpaper / night light); 2026-07-10: Reset wallpaper (auto) row; root stays six.)

NVIDIA first-class options — deferred past v1 (Bernardo 2026-07-10). Keep #59 commented install guidance; no nomarchy.hardware.nvidia.* until a hybrid maintainer + queue.

Installer / template

(Installer ↔ template SoT CI → #72; V2 install → #75.) (Installer chown flake dir → #65.) (MIGRATION.md snapshot layout → #64.) (Unattended-install test matrix → #74.) (Friendlier mkFlake theme-state errors → #66.)

Theme polish

(#52 residual ANSI → #68 ✓.) (Fidelity / hierarchy nits → #67 ✓.) (Import pipeline hierarchy → #70 ✓.) (audit-theme-design identity exemptions → #69 ✓.) (summer-day/night pair polish + status CSS + preview recapture → shipped 2026-07-10: JSON SoT, status states, theme-shot previews for executive-slate + neon-glass.)

(Identity taste retunes + hand btop.theme for white/vantablack/lumon/ hackerman/matte-black/miasma/neon-glass/boreal/executive-slate → shipped 2026-07-10.)

v1.0 pointer

See VISION. Open PROPOSED: NVIDIA wrappers deferred past v1; IR portal (b)/(c) hardware. Browser default = Chromium; power = PPD.

Decisions `[human]`

Open calls only Bernardo can make; agents add options/evidence but never decide. Resolved entries stay for history; agents treat them as closed.

Resolved (2026-07-10)

Docs site vs Markdown-in-repo — markdown in-repo for now (docs/, README). A rendered docs site is FUTURE if wanted.
Default browser — ship Chromium in templates/downstream/home.nix; mime → chromium-browser.desktop. Opt out: delete the line / override mime.
Default power backend — keep PPD (nomarchy.system.power.backend default). TLP remains the one-line opt-in. Rationale: stability + live profile API for menu/Waybar; Omarchy’s TLP experiment reverted.

Resolved (2026-07-10, more)

Formatter adoption — yes, but not now. Tracked as FUTURE (below). Nix-source style only (nixfmt-rfc-style or similar); one bulk reformat + CI/check when promoted. Until then: hand-aligned style per CONVENTIONS.
Hibernation — want by default (product intent). Needs a disk-backed swap (file or partition) sized for resume; not zram alone. Implementation is a future/NEXT item when designed (installer + resume device + encrypted-root story).

Resolved (2026-07-10, #76 design)

Swap sizing — exactly RAM (installer default, unchanged). Hibernate image ≤ RAM; zram takes day-to-day paging. swapSize=0 stays no-swap.
Migration — docs runbook (docs/MIGRATION.md), not a tool.
No-swap Hibernate — keep the menu row; notify on failure.

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