chore: repo housekeeping — gitignore, docs, metainfo releases, test CI deps

.github/workflows/test.yml

@@ -15,8 +15,6 @@ jobs:
 
     steps:
       - uses: actions/checkout@v7
-        with:
-          lfs: true
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -26,7 +24,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install numpy opencv-python-headless numba rawpy imageio pyfftw scipy pytest
+          pip install -r requirements.txt pytest
 
       - name: Run tests (no Qt)
         run: |

.gitignore

@@ -153,4 +153,10 @@ dmypy.json
 .pytype/
 
 # Cython debug symbols
-cython_debug/src/_version_static.py
+cython_debug/
+
+# Generated at build time by scripts/build_*.sh
+src/_version_static.py
+
+# Claude Code per-machine settings
+.claude/settings.local.json

README.md

@@ -11,7 +11,7 @@ Open-source focus stacking application for Windows, macOS, and Linux.
 ## Features
 
 - **4 stacking algorithms:** Laplacian Pyramid, Weighted Average, Depth Map, Exposure Fusion (HDR)
-- **Automatic alignment:** Translation-only or Rotation + Scale correction (focus breathing)
+- **Automatic alignment:** Translation, Euclidean (rotation), Similarity (rotation + scale, for focus breathing), or Affine correction
 - **16-bit pipeline:** Full bit-depth preservation from RAW to output
 - **Auto-crop:** Removes black edges from alignment shifts
 - **Auto-tuning:** Parameters auto-detected from image resolution
@@ -29,7 +29,8 @@ Pre-built packages are available on the [Releases](https://github.com/noah-peete
 |---|---|---|
 | **Windows** | `ChimpStackr-Windows.zip` | Extract and run `chimpstackr.exe` |
 | **macOS** | `ChimpStackr-macOS.dmg` | Open DMG, drag to Applications |
-| **Linux** | `ChimpStackr-Linux-x86_64.AppImage` | `chmod +x` and run |
+| **Linux (AppImage)** | `ChimpStackr-Linux-x86_64.AppImage` | `chmod +x` and run |
+| **Linux (Flatpak)** | `ChimpStackr-Linux.flatpak` | `flatpak install ChimpStackr-Linux.flatpak` |
 
 ## CLI Usage
 

docs/index.md

@@ -11,7 +11,7 @@ description: Open-source focus stacking for Windows, macOS, and Linux
 ## Features
 
 - **4 stacking algorithms** — Laplacian Pyramid, Weighted Average, Depth Map, Exposure Fusion (HDR)
-- **Automatic alignment** — translation-only or rotation + scale correction (focus breathing)
+- **Automatic alignment** — translation, euclidean (rotation), similarity (rotation + scale, for focus breathing), or affine correction
 - **16-bit pipeline** — full bit-depth preservation from RAW to output
 - **Auto-crop** — removes black edges from alignment shifts
 - **Auto-tuning** — parameters auto-detected from image resolution
@@ -31,7 +31,8 @@ Pre-built packages are on the [Releases](https://github.com/noah-peeters/ChimpSt
 |---|---|---|
 | **Windows** | `ChimpStackr-Windows.zip` | Extract and run `chimpstackr.exe` |
 | **macOS** | `ChimpStackr-macOS.dmg` | Open DMG, drag to Applications |
-| **Linux** | `ChimpStackr-Linux-x86_64.AppImage` | `chmod +x` and run |
+| **Linux (AppImage)** | `ChimpStackr-Linux-x86_64.AppImage` | `chmod +x` and run |
+| **Linux (Flatpak)** | `ChimpStackr-Linux.flatpak` | `flatpak install ChimpStackr-Linux.flatpak` |
 
 ## CLI quickstart
 

docs/packaging.md

@@ -118,7 +118,7 @@ The build script wraps the PyInstaller output in an AppImage:
 
 ### Linux Flatpak
 
-Flatpak packaging files are in `packaging/flatpak/`. The Flatpak build uses the KDE 6.9 runtime with the PySide BaseApp (provides PySide6 bindings linked against the runtime's Qt6).
+Flatpak packaging files are in `packaging/flatpak/`. The Flatpak build uses the KDE 6.10 runtime with the PySide BaseApp (provides PySide6 bindings linked against the runtime's Qt6).
 
 **App ID:** `io.github.noah_peeters.ChimpStackr`
 
@@ -135,7 +135,7 @@ Flatpak packaging files are in `packaging/flatpak/`. The Flatpak build uses the
 ```bash
 # Install prerequisites
 sudo apt install flatpak flatpak-builder
-flatpak install flathub org.kde.Platform//6.9 org.kde.Sdk//6.9 io.qt.PySide.BaseApp//6.9
+flatpak install flathub org.kde.Platform//6.10 org.kde.Sdk//6.10 io.qt.PySide.BaseApp//6.10
 
 # Build and install locally
 ./scripts/build_flatpak.sh
@@ -151,7 +151,7 @@ flatpak run io.github.noah_peeters.ChimpStackr
 - FFTW3 (float + double precision) -- required by pyFFTW
 - LibRaw -- required by rawpy
 
-The CI workflow uses `flatpak/flatpak-github-actions` with the `ghcr.io/flathub-infra/flatpak-github-actions:kde-6.9` container image to build and produce a `.flatpak` bundle attached to each release.
+The CI workflow uses `flatpak/flatpak-github-actions` with the `ghcr.io/flathub-infra/flatpak-github-actions:kde-6.10` container image to build and produce a `.flatpak` bundle attached to each release.
 
 ### Heavy dependencies
 

packaging/flatpak/io.github.noah_peeters.ChimpStackr.metainfo.xml

@@ -60,7 +60,27 @@
   </screenshots>
 
   <releases>
-    <release version="0.2.1" date="2026-04-05">
+    <release version="0.3.4" date="2026-04-12">
+      <description>
+        <p>Four alignment modes: translation, euclidean, similarity and affine.</p>
+      </description>
+    </release>
+    <release version="0.3.3" date="2026-04-05">
+      <description>
+        <p>Flatpak packaging fixes and metainfo screenshots.</p>
+      </description>
+    </release>
+    <release version="0.3.2" date="2026-04-05">
+      <description>
+        <p>Flatpak packaging, EXIF auto-rotation, support for mixed image dimensions, 16-bit TIFF/PNG and EXR output.</p>
+      </description>
+    </release>
+    <release version="0.3.0" date="2026-03-25">
+      <description>
+        <p>GPU-accelerated stacking pipeline with CuPy, large CPU pipeline optimisations, Windows fixes.</p>
+      </description>
+    </release>
+    <release version="0.2.1" date="2026-03-25">
       <description>
         <p>Major update with multiple stacking algorithms, CLI support, modern UI, and cross-platform packaging.</p>
       </description>