Boorusama-Qt

A desktop reimplementation of Boorusama (the Flutter booru client) built with Qt for Python (PySide6) instead of Flutter/Dart.

It's a multi-backend image-board browser with a pluggable engine architecture: adding a new booru is a single module (or, for many sites, just a config profile).

Browse view — infinite-scroll grid with tag search.

Post viewer — full image with category-grouped, clickable tags and metadata.

Table of contents

• Boorusama-Qt
  • Features
  • Install & run
    • From a release package
    • From source
    • Build the packages yourself
  • Architecture
    • Adding a new booru
  • Development
    • Git hooks
    • Quality gates
  • Notes on backends
  • Keyboard & mouse
  • Status
  • License

Features

• 🔌 Pluggable engines — Danbooru, Gelbooru, and a config-driven generic engine (moebooru/philomena profiles, e.g. yande.re, Konachan). Add more by dropping a module into boorusama/engines/.
• 🔍 Search with per-token tag autocomplete (category-colored).
• 🖼 Responsive thumbnail grid with infinite scroll and a two-tier (memory + disk) image cache.
• 🔎 Full post viewer — large image, category-grouped clickable tags, metadata, prev/next navigation (arrow keys), favorite (F), download.
• ♥ Local favorites and search history (SQLite-backed).
• 📚 Pools browsing (where the backend supports it, e.g. Danbooru).
• ⤓ Download manager with live progress.
• 🚫 Blacklist (Danbooru-style AND/OR rules) and a safe-mode toggle.
• 🎨 Theming — dark / light / midnight palettes with a custom accent color.
• 👤 Per-source login (API keys) for sites that require/benefit from it.

Install & run

Requires Python 3.11+ (PySide6 6.6+ is pulled in automatically).

From a release package

Grab the wheel from the latest release, then:

# with uv (recommended) — installs an isolated `boorusama-qt` command
uv tool install ./boorusama_qt-0.1.0-py3-none-any.whl
boorusama-qt

# …or into an environment with pip
pip install ./boorusama_qt-0.1.0-py3-none-any.whl
boorusama-qt

From source

git clone https://github.com/1Git2Clone/boorusama-qt
cd boorusama-qt

# with uv
uv run python main.py

# …or a classic venv
python -m venv .venv && source .venv/bin/activate
pip install -e .
python main.py

Build the packages yourself

uv build          # → dist/boorusama_qt-*.whl and *.tar.gz

Architecture

boorusama/
├── core/                  backend-agnostic foundation
│   ├── models.py          Post, Tag, Pool, Rating, Account dataclasses
│   ├── engine.py          BooruEngine ABC + capabilities/config
│   ├── registry.py        engine registration & instantiation
│   ├── workers.py         QThreadPool helpers (run_async)
│   └── imageloader.py     async image fetch + mem/disk cache
├── engines/               one module per backend family
│   ├── danbooru.py
│   ├── gelbooru.py
│   └── generic.py         config-driven (moebooru / philomena profiles)
├── services/              local features
│   ├── storage.py         SQLite favorites + history
│   ├── blacklist.py       tag/rating filtering
│   └── downloads.py       streaming download manager
├── ui/                    PySide6 widgets & windows
│   ├── main_window.py     nav rail, source switcher, content stack
│   ├── search_bar.py      debounced autocomplete
│   ├── post_grid.py       infinite-scroll grid
│   ├── post_viewer.py     full viewer + tag/metadata panel
│   ├── pages.py           favorites / history / downloads / pools
│   ├── settings_dialog.py sources, login, appearance, content filters
│   ├── widgets.py         FlowLayout, TagChip, PostThumbnail
│   └── theme.py           QSS palettes
├── config.py              JSON settings + source definitions + paths
├── context.py             central AppContext wiring everything together
└── app.py                 QApplication bootstrap

Adding a new booru

For Danbooru/moebooru/Gelbooru-shaped JSON APIs, add a profile to PROFILES in engines/generic.py and a default SourceConfig in config.py. For anything bespoke, subclass BooruEngine, implement search_posts (and optionally autocomplete_tags, search_pools, …), and decorate it with @register_engine.

Development

This project uses uv for everything; see CONTRIBUTING.md for the full guide.

Git hooks

The repo ships hooks under .githooks/. Enable them once per clone:

git config core.hooksPath .githooks    # or: sh scripts/setup-hooks.sh

• pre-commit — runs ruff check and ruff format --check (fast).
• pre-push — runs the full CI-equivalent gate before anything leaves your machine: ruff lint + format, pyright, and the headless smoke test. This is the local stand-in for branch protection — a failing gate aborts the push.

Bypass in an emergency with git commit --no-verify / git push --no-verify.

Quality gates

The same checks the hooks and CI run, to invoke by hand:

uvx ruff check .                                        # lint
uvx ruff format --check .                                # formatting (drop --check to fix)
uv run --with pyright pyright                            # type check
QT_QPA_PLATFORM=offscreen uv run python scripts/ci_smoke.py   # headless smoke test

Notes on backends

• Danbooru — fully supported (search, autocomplete, pools, login, per-category tags).
• yande.re / Konachan — work out of the box via the generic moebooru profile.
• Gelbooru — now requires an API key (user_id + api_key) for its JSON API even for reads. Add credentials under Settings → Sources & Login; errors otherwise surface in the status bar.

Keyboard & mouse

In the post viewer:

Browser-style history (anywhere) — moves through searches, pools, opened posts, and sidebar pages:

Status

This is a faithful but from-scratch port focused on the core Boorusama loop and the major feature surfaces. It is not affiliated with the original project.

License

Released under the GNU General Public License v3.0 or later — see LICENSE.