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modules/nixos/oom.nix — running out of memory now kills the offending process (with a desktop notification via systembus-notify) instead of freezing the desktop for minutes until the kernel OOM killer fires. earlyoom over systemd-oomd, deliberately: oomd kills whole cgroups, and a Hyprland session runs as ONE scope (nothing here spawns per-app systemd scopes, unlike GNOME) — under pressure oomd would take out the entire desktop to save it. earlyoom kills the single largest process before the thrash point. nixpkgs default-enables oomd in an inert state (no slices monitored); it is disabled outright so there is one owner. Session plumbing is --avoid-listed (unanchored — NixOS wrappers rename comm to .foo-wrapped); no --prefer tuning, largest-RSS selection already finds the hog. All mkDefault; opt out with services.earlyoom.enable = false (README note added). Verified: V0 (flake check) + V2 — new checks.oom-protection runNixOSTest, executed: a chunked allocator (686 MB peak, 1 GB VM) is SIGTERM'd by earlyoom in 0.1 s, a bystander unit survives (the process-level granularity the module exists for), and systemd-oomd is asserted inactive. 25 s runtime. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
121 lines
6.6 KiB
Markdown
121 lines
6.6 KiB
Markdown
# Journal — append-only iteration log
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One entry per iteration, **newest first**. This is the loop's short-term
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memory: the next session reads the last 3–5 entries to orient. Keep an
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entry under ~15 lines; durable lessons go to MEMORY.md, not here.
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Template:
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```markdown
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## YYYY-MM-DD — <task title> (<commit sha, or "no commit">)
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- **Task:** which BACKLOG item (or QA sweep / bootstrap / escalation)
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- **Did:** what changed, in 2–4 lines
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- **Verified:** tier reached (V0/V1/V2) + the actual commands/checks run
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- **Pending:** V3 queued? follow-ups filed? anything [stuck]?
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- **Next suggestion:** what the following iteration should probably take
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```
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---
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## 2026-07-04 — Memory-pressure protection shipped (loop iteration #3)
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- **Task:** BACKLOG NOW#3 — default-on userspace OOM killer.
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- **Did:** `modules/nixos/oom.nix`: earlyoom (mkDefault on, desktop
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notifications, session-plumbing `--avoid` list, no `--prefer`) +
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`systemd.oomd.enable = false`. Choice rationale: Hyprland session is
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one cgroup scope → oomd's cgroup-level kill would nuke the desktop;
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earlyoom is process-level. Found en route: nixpkgs default-enables
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oomd *inert* (enable=true, all slice toggles false). README "beyond
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the surface" note added.
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- **Verified:** V0 (flake check) + **V2** — new `checks.oom-protection`
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runNixOSTest, run for real: hog (chunked allocator, 686 MB peak in a
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1 GB VM) SIGTERM'd by earlyoom in 0.1 s, bystander unit survived,
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oomd asserted inactive. 25 s test, cheap enough for the suite.
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- **Pending:** nothing hardware-specific (behavior fully VM-provable).
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- **Next suggestion:** NOW#4 (btrfs-assistant override attempt). Also:
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CI run #58 (the .gitea fix) was *running* at commit time — check its
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outcome next tick; this push triggers #59.
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## 2026-07-04 — CI fix: wrong workflow dir (correction to iteration #2)
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- **Task:** Bernardo reported no run despite an active runner + shared
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his compose file: the server is **Gitea** (gitea/act_runner), not
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Forgejo — I'd shipped the workflow to `.forgejo/workflows/`, which
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Gitea never reads. The legacy repo's `.gitea/workflows/` path was the
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clue I under-weighted.
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- **Did:** `git mv` → `.gitea/workflows/check.yml`; corrected the
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Forgejo references in the workflow header, TESTING.md §1b, BACKLOG
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item 20 (now: watch the first run; runner was never the problem);
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MEMORY.md gains the Gitea-not-Forgejo line.
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- **Verified:** the push of this commit is itself the test — the run
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must appear; monitoring.
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- **Pending:** first green run (item 20); runner-container memory
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headroom is the watch-out.
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## 2026-07-04 — CI checks-on-push shipped (loop iteration #2)
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- **Task:** BACKLOG NOW#2 — Forgejo Actions workflow.
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- **Did:** `.forgejo/workflows/check.yml` (push to main/v1 + dispatch):
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flake check --no-build, theme-sync py_compile, bash -n over tracked
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.sh. Scoped to the **eval tier** deliberately — API probing +
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archaeology of the legacy `.gitea/workflows/check.yml` (57 runs on
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this instance) showed the runner is an act_runner docker container
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(no KVM/systemd), so the VM suite can't run there; a commented
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`vm-checks` job documents the KVM-runner upgrade path. Legacy's
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hard-won container gotchas (nixbld setup, sandbox=false for Stylix
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IFD, Nix 2.31.5 pin) carried over verbatim. TESTING.md §1b added.
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- **Verified:** V0 locally (same commands the workflow runs, minus the
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container Nix install) + yq YAML parse. The real green run needs the
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runner to be alive — **not confirmable from here** (runners API is
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401 unauthenticated); watching the run after push.
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- **Pending:** new `[human]` item 20 — confirm/re-register the runner;
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stretch: a KVM runner unlocks the vm-checks job.
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- **Next suggestion:** NOW#3 (memory-pressure protection).
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## 2026-07-04 — Opt-in auto-commit shipped (loop iteration #1)
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- **Task:** BACKLOG NOW#1 — auto-commit of state mutations (in-flake
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state Phase 4). First autonomous /loop iteration.
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- **Did:** `settings.autoCommit` live-read by nomarchy-theme-sync;
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pathspec-limited commit of theme-state.json on apply/set (fires if flag
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on before OR after the write → the off-toggle commits too); identity
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fallback; same-value no-op; `bg` excluded. Menu: System › Auto-commit
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(instant, self-gated on `.git`). Rider: `get` prints booleans as JSON
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`true`/`false`, fixing the stuck "Auto timezone (on/off)" menu label.
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BACKLOG numbering switched to stable IDs (no renumbering).
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- **Verified:** V0 (py_compile, flake check) + V1 (HM generation builds;
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generated menu `bash -n`) + a 7-assertion sandbox git-repo round-trip
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(enable/set/same-value/disable/post-disable/apply/identity-fallback).
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- **Pending:** V3 queued in HARDWARE-QUEUE (on-machine toggle + apply).
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- **Next suggestion:** NOW#2 (CI checks-on-push) — but its runner half
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may need Bernardo to register a Forgejo runner; deliver the workflow
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regardless.
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## 2026-07-04 — Backlog revision pass (human-requested)
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- **Task:** Bernardo asked for a philosophy-aligned revision of BACKLOG.md
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("I'm sure I'm forgetting important items").
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- **Did:** verified guessed gaps against the tree first (GC/optimise/boot
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limit + all 21 previews already ship — dropped those ideas). Added the
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confirmed gaps: CI-on-push promoted to NOW#2 (agents push to main now),
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memory-pressure protection NOW#3 (nothing mitigates OOM; the release
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bump died to one), viewers+mime defaults #8, update/rollback UX #9,
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nomarchy-doctor #10, state-file validation #11, screen recording #12,
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niceties batch #13 (idle-inhibit, low-battery notify, hyprpicker), OCR
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in LATER; recovery runbook folded into the docs item; zram + default
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browser added to Decisions.
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- **Verified:** V0 (docs-only).
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- **Pending:** Bernardo to sanity-check the new NOW ordering, esp. CI at
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#2 and the two new Decisions.
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- **Next suggestion:** unchanged — NOW#1 (opt-in auto-commit).
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## 2026-07-04 — Bootstrap the loop infrastructure (this commit)
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- **Task:** create `agent/` (human-requested): LOOP/GOALS/BACKLOG/
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CONVENTIONS/MEMORY/HARDWARE-QUEUE/JOURNAL, root CLAUDE.md, README +
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ROADMAP pointers.
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- **Did:** reworked the forward half of docs/ROADMAP.md into the tiered
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BACKLOG (5 NOW / 6 NEXT / LATER / Decisions); collected every pending
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on-hardware check into HARDWARE-QUEUE.md; seeded MEMORY.md from the
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ROADMAP's decision records.
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- **Verified:** V0 (docs-only change; `nix flake check --no-build` run to
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confirm the tree still evaluates).
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- **Pending:** Bernardo to sanity-read GOALS.md pillars + BACKLOG tiering
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— reorder freely, the order *is* the instruction.
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- **Next suggestion:** BACKLOG NOW#1 (opt-in auto-commit — Phase 4 of
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in-flake state, already the agreed next step).
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