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Export took a path typed into the settings page, or a folder inside the library on the server. The first is how exports end up somewhere nobody looks; the second put JPEGs into the tree a scan catalogues, where they came back as photographs beside the RAWs they were made from. The destination is now an album (FR-EXP-10), chosen by name in the export sheet. Albums are listed under the collections in the sidebar; "+" there, or "New album…" in the sheet, opens a sheet for its name and its folder — on this device through the platform's dialogue, or on the server through the browser with "New folder". A server folder inside the library is refused, and the sheet says why. Selecting an album narrows the grid to the photographs behind its files: library::Scope is Collection or Album, and scope_clause is the one place the two are spelled, which also retires the two copies of the collection predicate total_images_scoped and read_cells_scoped had inlined. A batch resolves the album when it starts, and refuses in words when none is chosen, it has gone, or its folder is local to another device. Each item reports the image it came from, and the files written are recorded against the album in one transaction when the batch ends. A server album lives outside the library, so its queued uploads are relative to the account root. That is a third line in the outbox's .dest record rather than a leading slash, because a record written before albums may carry a stray slash and must keep the meaning it was written with. An export folder set before albums becomes an album called "Exports" on first open, so upgrading does not lose where exports were going. The old destination fields stay in ExportSettings so older settings files still read.
DarkRoom
A non-destructive RAW photo editor and library for Linux and Android, with a GPU develop pipeline, a catalog that syncs between devices, and no account, no telemetry and no cloud of its own.
The manual shows every feature, pictured from the application itself. This page says what it is, how to get it, and what is still missing.
What it does
A library. Point it at a folder — on this machine, on a network mount, or one a Nextcloud client keeps in virtual-files mode, where a placeholder is treated as the photograph rather than as a one-byte file — or at a Nextcloud account directly. The grid is virtualised, ordered by capture time with a timeline beside it, and filtered by rating, flag, colour label, person and whether the file is here. Ratings, colour labels, keywords, collections and a trash that survives a crash mid-operation. Card ingest. Bursts fold. The same RAW catalogued twice — a dated folder and a backup beside it — is found, proved the same, and folded onto one copy with the spares in the trash. Face detection and identity, with the index syncing between devices.
Developing. Eighteen declared operations fused into one compute dispatch, plus the neighbourhood work that cannot be: clarity, texture, capture sharpening, noise reduction, lens correction, spectral film simulation. Crop, straighten and correct converging verticals, spot repair, and local adjustments over masks the model draws — click a subject or a category, then paint, subtract a gradient or keep only where two selections agree, grow or shrink the edge. Focus peaking and a raw histogram for judging what is recoverable. Named presets; XMP sidecars other editors read.
Panoramas. Select the frames, align, choose a projection, fill the ragged border rather than crop it, and the composite lands beside its sources as a DNG, with a sidecar recording what it was merged from.
From the keyboard, and with its manual. Rating, flagging and labelling
have keys in the grid and in develop, as do zoom, undo and stepping through a
shoot in develop, and none of them is keyboard-only. The help sheet (F1, or
? in develop) lists every key and gesture, generated from the code that
binds it, and links them to the sections of the manual that show them — the
manual ships with the application and opens offline.
Export. JPEG, PNG, AVIF, JPEG XL, 8- and 16-bit TIFF, with resize, output sharpening, a naming template and a colour space — to a folder here or back into the library.
On both platforms. The same core runs on a desktop and a 12-inch tablet; the interface is one layout, tuned for a wide viewport with touch targets throughout. On both, the develop view draws the compute pass's texture directly — no readback between the GPU and the screen.
Getting it
| Platform | How | State |
|---|---|---|
| Arch Linux | packaging/PKGBUILD — makepkg -si |
Built from every release |
| Android | The APK from each CI run, or ./docker/android/package.sh --install |
Runs on a tablet; F-Droid not yet submitted |
| Windows | DarkRoom-<version>-x86_64-setup.exe, cross-built by CI (windows.md) |
Verified under Wine only; unsigned |
| Flatpak | packaging/flatpak/ |
Manifest in tree; choosing a library does not yet work in the sandbox |
Or build it. Git LFS is required for the model weights, and the toolchain pins itself to 1.92.0:
git lfs install && git lfs pull
cargo run --release -p darkroom-desktop
Android, through the containerised toolchain (docker/android):
./docker/android/build.sh cargo ndk -t arm64-v8a build --release
CONTRIBUTING.md has the system packages, the four commands CI runs against what you send, and the shortest useful contribution — a develop operation is one YAML file, and it arrives with its controls, its place in the chain and its tests.
Where it stands
0.16.0, twenty-four tagged releases in. 191 numbered requirements in scope, 84% of them claimed by code and traced to it; the rest are written down rather than merely absent.
Not built: plugins (post-v1, D12), compare and survey culling, AI denoise, tiled rendering, HDR merge and focus stacking, importing a Lightroom or darktable catalog, translations beyond the launch screen, most of the Android platform integration beyond running, and the Flatpak's library chooser. The performance targets are half verified: the per-commit benchmark suite §8 requires exists for everything that does not need a frame — the catalog, the scan, the thumbnails — and not yet for the render path, so a regression there fails nothing. outstanding.md is the list, with the reasoning for each.
Documentation
docs/README.md is the index. The short version, for someone using it:
| manual | Every feature, pictured |
| gestures.md | How it is driven — generated from the code, so it cannot describe a gesture that does not exist |
For someone changing it:
| CONTRIBUTING.md | How to land a first change without reading the rest |
| requirements.md | What the software must do — the numbered register, and the decisions |
| architecture.md | How it is built — crates, the GPU pipeline, the 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 |
Designs, one per subsystem: segmentation and mask editing · spot removal · panorama · faces · inference · storage and sync · catalog · display and extension · navigation · distribution · windows · benchmarks.
Licence
GPL-3.0-or-later. The photographs in the manual and the test fixtures are the author's and are there to show and test this project, nothing else. The model weights carry their own licences — models/LICENCE.md.