dtourolleandClaude Opus 5
353382c07f
A place recorded on the tablet should be where the desktop opens. Exchanged through `.darkroom-derived/place.json`, beside the thumbnail shards and the catalog snapshot. Newest timestamp wins outright: unlike the catalog this is replaced rather than merged, because two devices cannot both be where the photographer is and so there is nothing of theirs inside ours to preserve. It still refuses to upload over a copy it could not read, for a smaller version of the reason `sync_catalog` does: a record we have not compared against may be the newer one, and overwriting it would move the other device's photographer without ever having seen where they were. Last in the pass, and its failures are logged rather than reported. Everything else in that folder is *derived* -- a faster way to learn what the device could work out for itself -- so losing it costs time. A place is a fact only the other device knew, and losing it costs a scroll. A sync that ran out of connectivity should spend what it had on the shards. The full pass runs after a thumbnail sweep or when Sync is pressed, neither of which happens on an ordinary launch -- so a handover would arrive one launch late, which is one too many for a feature whose whole claim is picking up where you stopped. `spawn_place_fetch` is the small half: one GET of a few hundred bytes, started beside the scan. And it can still be refused. A handover is welcome on the way in and unwelcome once the photographer has started: a grid that jumped elsewhere mid-scroll because a round trip finally landed would have lost their place to the feature meant to keep it. Any scroll, scrub, scope change, filter or opened photograph closes the latch, and a record arriving after that is written to disk and takes effect next launch. 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.