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A git-tracked agent/ directory so AI agents can iterate on the distro unattended (runner-agnostic: /loop, headless claude -p, or a fresh manual session — all state lives in the checkout, per the distro's own philosophy): - LOOP.md — the iteration protocol: orient → pick one BACKLOG task → verify up the V0–V3 ladder → commit+push main → record. Safety rails (v1 untouchable, no force-push, no surprise lock bumps) and stop-and-escalate conditions. - BACKLOG.md — the forward half of docs/ROADMAP.md reworked into a prioritized queue (5 NOW / 6 NEXT / LATER / PROPOSED / Decisions); ROADMAP.md stays the design/decision record + shipped log. - GOALS.md — the four pillars (stable > reproducible/zero-hidden-state > effortless config > beautiful), quality bars, non-goals. - CONVENTIONS.md — coding/design rules (in-flake state, menu placement, Waybar whole-swap parity, toggle-vs-package, no formatter). - MEMORY.md — curated hard-won lessons (VM recipes, btrfs-assistant segfault watch, rofi/WirePlumber/hyprlock gotchas). - HARDWARE-QUEUE.md — every pending V3 on-hardware check collected from the ROADMAP, with exact steps, split by machine. - JOURNAL.md — append-only iteration log, seeded with this bootstrap. Plus a root CLAUDE.md entry point and README/ROADMAP pointers. Verified: V0 — docs-only; nix flake check --no-build green. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
61 lines
3.3 KiB
Markdown
61 lines
3.3 KiB
Markdown
# Memory — durable lessons, learned the hard way
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Curated, not append-only: one line per fact, newest at the top of its
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section; delete entries that stop being true. Details usually live in a
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docs/ROADMAP.md decision record — pointer given as (§ item). Add a fact
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here the moment a debugging session teaches you something a future
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iteration would otherwise rediscover.
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## Testing & VM recipes
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- Reusable headless VM harness: `checks.*` via runNixOSTest — existing
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examples to crib from: `distro-id` (boots + `switch-to-configuration
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dry-activate`), `hardware-toggles` (kernel cmdline/PAM assertions),
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`battery-charge-limit` (fake Mains adapter via `test_power`, real udev
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uevent, `InvocationID` change proves the restart).
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- Themed-desktop screenshots work headlessly: software-GL Hyprland
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(`LIBGL_ALWAYS_SOFTWARE` on virtio-gpu) + `machine.screenshot()` QMP
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dump — prototyped 2026-06-19, kept as the fallback for theme previews
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(§ Visual theme picker).
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- Hyprland/Ghostty need guest GL (`virtio-vga-gl`, `gl=on`) in
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interactive QEMU or the session won't start; black screen ≈ missing GL
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(docs/TESTING.md § gotchas).
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- No KVM = slow, not broken; don't read slowness as failure.
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## Known-broken / watchlist
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- **btrfs-assistant 2.2 segfaults on launch** (nixpkgs 26.05,
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`libbtrfsutil.so.1.4.0` ABI mismatch; crashes on hardware too, not a VM
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artifact). `nomarchy-snapshots` fzf flow is the shipped fallback;
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re-check on every lock bump (§ Snapshot browse/restore; BACKLOG NOW#2).
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- **NixOS release bump is a trap:** the discarded attempt
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(branch deleted 2026-06-22) hit a Hyprland OOM blocker; a redo is a
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deliberate `v2`, never part of routine lock bumps.
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- `theme-state.json` is git-tracked inside an 86 MB flake tree, so every
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state write re-copies the source before eval — the wallpapers-artifact
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split (BACKLOG LATER) is the decided fix (§ Faster switches).
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## Gotchas (cost a debugging session once)
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- Never kill a Wayland session-lock client (hyprlock): its crash
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failsafe drops to a tty instead of unlocking (§ Hibernate
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double-unlock).
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- rofi `element-icon size` is one value = a square cell; `WxH` silently
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collapses and non-square icons letterbox — pre-crop images square at
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build (§ Visual theme picker).
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- WirePlumber 0.5 monitor rules can only early-match `device.api`;
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`device.product.name` etc. bind *after* the rule runs — surgical
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libcamera scoping is impossible (§ Webcam).
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- `hyprctl switchxkblayout` is a *global* layout flip; per-device isolation
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needs `device[<name>]:kb_layout` keywords (§ Keyboard layouts).
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- Waybar's clock captures the timezone at construction — a zone change
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needs SIGUSR2 (watcher in `timezone.nix`) (§ Automatic timezone).
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- Waybar `persistent_workspaces` (underscore) is dead syntax silently
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ignored; the hyphen form is honoured and renders phantom workspaces
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(§ Waybar shows non-existent workspaces).
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- GTK4/libadwaita/Qt6 read light/dark from the portal's
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`org.freedesktop.appearance color-scheme` (dconf), not Stylix polarity
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(§ GTK/Qt ignore the theme's mode).
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- Update order matters downstream: `sys-update` (lock) before
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`home-update`, or desktop changes are silently skipped against the old
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lock (README § 3).
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- grub `loadfont`s every `.pf2` in a theme dir — reuse a bundled DejaVu
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rather than shipping fonts (§ Distro branding).
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