OmaPhoto 1.0.0: the Linux port of Compositor

A layered image editor for Linux and Omarchy, ported from Compositor
(github.com/robbietilton/Compositor), whose Swift source is its
specification. It reads and writes Compositor's .comp projects.

Packages for Ubuntu, Fedora and Arch come from the release workflow;
scripts/install/ holds one install script per distribution family,
and flake.nix serves NixOS.

Co-Authored-By: Claude <noreply@anthropic.com>

scripts/dev.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+repo=$(cd "$(dirname "$0")/.." && pwd)
+image=omaphoto-dev
+runtime=/run/user/$(id -u)
+
+docker build -q -t "$image" -f "$repo/Dockerfile.dev" "$repo" >/dev/null
+
+in_container() {
+    exec docker run --rm --init -u "$(id -u):$(id -g)" -e HOME=/tmp --tmpfs /tmp:rw,exec,size=4g \
+        --tmpfs "$runtime:uid=$(id -u),gid=$(id -g),mode=0700" -e XDG_RUNTIME_DIR="$runtime" \
+        -v "$repo:$repo" -w "$repo" "$@"
+}
+
+configure_and_build='cmake -S . -B build -G Ninja -DOMAPHOTO_WERROR=ON && cmake --build build'
+
+case "${1:-}" in
+build)
+    in_container "$image" sh -c "$configure_and_build"
+    ;;
+test)
+    in_container "$image" sh -c "$configure_and_build && ctest --test-dir build --output-on-failure --timeout 120"
+    ;;
+run)
+    socket=$WAYLAND_DISPLAY
+    [[ $socket = /* ]] || socket=$XDG_RUNTIME_DIR/$socket
+    socket=$(readlink -f "$socket")
+    # The desktop's theme, where Omarchy keeps it, read-only.
+    theme=$HOME/.local/state/omarchy
+    mounts=()
+    [[ -d $theme ]] && mounts=(-v "$theme:/tmp/.local/state/omarchy:ro")
+    in_container "${mounts[@]}" -v "$socket:$runtime/wayland-0" -e WAYLAND_DISPLAY=wayland-0 \
+        -e QT_QPA_PLATFORM=wayland "$image" build/omaphoto "${@:2}"
+    ;;
+*)
+    echo "usage: dev.sh build|test|run [args]" >&2
+    exit 2
+    ;;
+esac