StemRoller: desktop stem separator, Android stems player, and server daemons

- stemroller/: PySide6/QML desktop app and player for separating music into stems
- android/: Plex music player that plays per-stem mixes, with Android Auto support,
  a graphic + parametric (Equalizer APO-style) EQ, and offline downloads
- server/: stemserve (serves stems to the app) and stemd (separates the library on
  the server's GPU, with "Stem Now" priority requests)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

pyproject.toml

@@ -0,0 +1,47 @@
+[project]
+name = "stemroller"
+version = "0.1.0"
+description = "Drag-drop stem separation (Demucs + RoFormer) with a 240Hz Material x Aero UI"
+requires-python = ">=3.12,<3.13"
+dependencies = [
+    "PySide6>=6.10",
+    "numpy>=2.0",
+    "soundfile>=0.13",
+    "sounddevice>=0.5",
+    "torch==2.14.1",
+    "triton-rocm",
+    "torchvision",
+    "demucs @ git+https://github.com/adefossez/demucs",
+    "audio-separator[cpu]>=0.30",
+    "audioread",
+]
+
+[project.scripts]
+stemroller = "stemroller.app:main"
+stemroller-worker-cli = "stemroller.worker.cli:main"
+stemroller-player = "stemroller.player.app:main"
+
+[tool.uv]
+environments = ["sys_platform == 'linux' and platform_machine == 'x86_64'"]
+# torchaudio has no build matching torch 2.14; nothing here needs it.
+override-dependencies = ["torchaudio ; sys_platform == 'never'"]
+
+[tool.uv.sources]
+torch = { index = "pytorch-rocm" }
+triton-rocm = { index = "pytorch-rocm" }
+torchvision = { index = "pytorch-rocm" }
+
+[[tool.uv.index]]
+name = "pytorch-rocm"
+url = "https://download.pytorch.org/whl/rocm7.2"
+explicit = true
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.metadata]
+allow-direct-references = true
+
+[tool.hatch.build.targets.wheel]
+packages = ["stemroller"]