dtourolleandClaude Opus 5
d0b671d4db
The merge probability was `dr_face`'s constant and the smallest group was a bare `< 2` in the clustering pass. Both were tuned on one library — 1,813 faces of one photographer's family — and the quantity they optimise is a property of the population, not of the model. A household at close family resemblance and two thousand strangers at a wedding want different answers, and neither of them is the reference library. The doc comment already conceded the point and pointed at `face_index --tune`; a photographer does not have a terminal. So they are `FaceSettings` now, saved per device beside the cache budgets and edited from the People screen — beside the Regroup button that applies them and the rail that shows what they did, because a value changed three screens away from its effect is one nobody can tune. Moving them is safe by construction, which is why nothing asks for confirmation: a regroup writes only the suggested half, and confirmations, names and ignores enter as anchors and come back unchanged. The smallest-group rule is applied only to groups the system invented — a group the user named or set aside survives it whatever its size, because a display preference does not overrule a judgement. **Withdrawal, without which the setting does nothing visible.** Raising the smallest group stops the pass creating small groups; it does not remove the ones a previous pass made, because those still hold their suggestions, so they are not empty, so the prune leaves them. The pass now releases every unanchored face it did not place before pruning. And a dial you cannot see the effect of is not a dial. "What would this do?" runs the same population through the clusterer without opening a transaction and reports groups, faces grouped and largest group — one row of `--tune`'s table, on the user's own library, on a worker thread. The line leads with the group count because that is the number that says which side of the right setting you are on: it climbs as fragments are gathered into people and falls as separate people start being welded, while the grouped-face count rises straight through both. The preview parks its poll timer in a slot of its own. A preview and a regroup are allowed to be in flight together, and sharing the sweep's single slot would have the second to start drop the first's timer — visible as a Regroup that finished on its worker and never said so. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
DarkRoom
A cross-platform, non-destructive RAW photo editor for Linux and Android.
Status: 0.9.0, and no longer a spike. A library opens, culls, develops and exports on both platforms, across eight tagged releases. What is not built is written down rather than merely absent — see docs/outstanding.md for the requirements that have no implementation and why, and docs/technical-debt.md for the compromises that were chosen.
Documentation
| Document | Contents |
|---|---|
| CONTRIBUTING.md | How to land a first change without reading the rest |
| requirements.md | What the software must do — 179 numbered requirements |
| architecture.md | How it is built — crates, GPU pipeline, data model, sync |
| technical-debt.md | Compromises taken deliberately, each with the condition that retires it |
| outstanding.md | What is not built, and whether that is a decision or a gap |
| code-health.md | What a contribution costs, per seam, measured |
| traceability.md | Generated: which requirement is claimed by which file |
| faces.md | Face detection and identity — the models, the licence problem, and what S14 measured |
Building
Desktop:
cargo run -p darkroom-desktop
Android (containerised toolchain, see docker/android):
./docker/android/build.sh cargo ndk -t arm64-v8a build --release
Git LFS is required for the model weights, and the toolchain pins itself. CONTRIBUTING.md has the details and the four commands CI will run against what you send.
Current state
Working. A catalog over a local folder, a Nextcloud account, or a folder a
sync client keeps in virtual-files mode — where a placeholder is treated as the
photograph rather than as a one-byte file. A virtualised library grid with a
capture-time timeline, ratings, labels, keywords, collections and a trash that
survives a crash mid-operation. Card ingest. Face detection and identity, with
the index syncing between devices. A develop pipeline of fifteen declared
operations fused into a single compute dispatch, plus the neighbourhood
operations that cannot be — clarity, texture, capture sharpening, noise
reduction, lens correction, spectral film simulation. Crop, straighten, spot
removal, gradient and subject-segmentation masks, named presets, and a
generated panel that no operation in ui/ is allowed to name. Export to JPEG,
PNG and 8- or 16-bit TIFF with resize and output sharpening.
The zero-copy display path works on desktop. The compute pass writes a texture that Slint composites directly, which is what ARCH §6.1 requires; the readback it forbids costs 96% of frame time at 4K, and
cargo run -p dr-gpu --example bench --features readback
still reproduces that measurement. The one exception is the Android develop view, which reads the frame back through the CPU because zero-copy there needs wgpu's Vulkan swapchain, and that tears a portrait window on a tablet whose panel is mounted landscape. It is debt, not a revision of the rule: the reasoning, the on-device measurements that forced it, and the three separate things any one of which would remove it are in technical-debt.md TD-1.
Not built. Plugins, compare and survey culling, focus peaking, burst grouping, AI denoise, tiled and progressive rendering, and most of the Android platform integration beyond running. The performance targets in §4.1 are unverified rather than unmet — the per-commit benchmark suite §8 requires does not exist, so nothing fails a build on a regression. docs/outstanding.md is the list, with the reasoning.
Licence
GPL-3.0-or-later.