stuff

A Gentoo ebuild overlay.

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emerge --sync stuff

Mirrors

Auto-mirrored on every push:

• github.com/istitov/stuff (primary)
• gitlab.com/istitov/stuff
• codeberg.org/istitov/stuff

Highlights

AMD Ryzen-AI / NPU stack

NPU-first LLM tooling for AMD Ryzen AI (XDNA2). Application layer plus the driver and runtime it needs:

• sci-ml/fastflowlm — NPU-first LLM runtime (chat, model pull).
• sci-ml/lemonade — AMD Lemonade SDK.
• sci-ml/kokoros — Kokoro TTS server (Rust + Python).
• sci-ml/amd-gaia — AMD GAIA stack with api / audio / eval / image / mcp / talk / ui USE flags.
• dev-libs/xdna-driver, dev-libs/xrt-xdna, dev-util/xrt — NPU driver and the XDNA-extended Xilinx Runtime.

Local LLM tooling

Backend-agnostic servers, model-swap proxy, CLI clients, and web UI. Pairs with fastflowlm / lemonade above as well as vllm and any other OpenAI-compatible endpoint:

• sci-misc/llama-cpp — llama.cpp server / runtime. Bundled web UI provisioned at configure time (default on; disable with USE=-webui).
• sci-misc/llama-swap — Go HTTP proxy that lifecycle-manages multiple inference backends and routes OpenAI/Anthropic-compatible requests to the right one. Optional embedded Svelte UI via USE=ui; vendored Go modules on extra-stuff.
• www-apps/hollama — Minimal chat UI (SvelteKit + Node, browser-localStorage state, no server-side persistence). Talks to Ollama natively and any OpenAI-compatible endpoint. systemd unit + openrc service files; loopback-only by default.
• dev-util/aichat — All-in-one LLM CLI (Chat-REPL, shell assistant, RAG, agents); multi-provider, single Rust binary.
• dev-util/rtk — "Rust Token Killer" CLI proxy that filters dev-command output (cargo, npm, pytest, …) before it reaches your LLM session, cutting token consumption.
• dev-util/argc — Bash CLI framework + Argcfile.sh task runner; infrastructure for sigoden's tooling cluster.

Speech / audio ML stack

ASR, speaker diarization, and audio DSP packages:

• app-accessibility/whisper-cpp — Whisper.cpp offline ASR.
• sci-ml/sherpa-onnx + sci-ml/sherpa-onnx-bin — Next-gen-Kaldi ONNX ASR / TTS / speaker-id (source build and prebuilt-wheel flavour).
• sci-ml/pyannote-audio plus the pyannote-{pipeline,metrics,database,core} chain and sci-ml/pyannoteai-sdk — speaker-diarization toolkit.
• sci-ml/torch-audiomentations + sci-ml/torch-pitch-shift + sci-ml/asteroid-filterbanks
  • sci-ml/julius — neural-net friendly audio DSP / augmentation building blocks.

PyTorch / ONNX ecosystem additions

General-purpose ML infrastructure not covered by ::gentoo, pulled in alongside the speech stack above and broadly useful on their own:

• sci-ml/lightning + sci-ml/lightning-utilities — PyTorch Lightning training framework.
• sci-ml/torchmetrics — metric collection for PyTorch training loops.
• sci-ml/pytorch-metric-learning — embedding / metric-learning utilities.
• sci-ml/torchcodec — PyTorch video / audio decoder.
• sci-libs/onnxruntime 1.26.0, sci-libs/dlpack, dev-cpp/safeint — the ONNX inference engine plus its in-memory tensor-exchange / overflow-safe-int building blocks.
• dev-python/optuna — hyperparameter optimization.

ROCm 7.2.3

Local bumps of the ROCm 7.2 stable line ahead of ::gentoo's 7.2.0: dev-libs/rocm-{core,comgr,device-libs,opencl-runtime}, dev-libs/rccl, dev-libs/hipother, dev-build/rocm-cmake, dev-util/{hip,hipcc,hipify-clang,rocm-smi,rocminfo,rocm_bandwidth_test}, sci-libs/{hipBLAS,hipBLAS-common,hipBLASLt,hipCUB,hipFFT,hipRAND,hipSOLVER,hipSPARSE,hipsparselt,composable-kernel,miopen,rocBLAS,rocFFT,rocPRIM,rocRAND,rocSOLVER,rocSPARSE,rocThrust}.

dev-util/therock-bin is a /opt-installed ROCm SDK that pulls AMD's nightly TheRock build for a per-host AMDGPU_TARGETS. Coexists with the /usr ROCm above; an nvchecker regex source on AMD's CDN tracks new nightlies.

HyperSpy / 4D-STEM electron-microscopy stack

A full HyperSpy ecosystem that is not in ::gentoo:

hyperspy, hyperspyui, hyperspy-gui-traitsui, hyperspy-gui-ipywidgets, rosettasciio, emdfile, ncempy, exspy, atomap, pyxem, py4dstem.

Packaging follows upstream's split into a core (hyperspy) plus GUI backends and per-domain extensions (exspy for EELS/EDS, atomap for atomic-column analysis, pyxem / py4dstem for 4D-STEM, ncempy/emdfile/rosettasciio for I/O).

SANS / SAXS / XAFS analysis

• sci-physics/mantid — SANS reduction and analysis. Installs under /opt/mantid and keeps building against the current ::gentoo by carrying a few local deps (see Qt5 revivals below).
• sci-physics/sasview + dev-python/sasmodels
  • dev-python/bumps + dev-python/periodictable — SAS modeling and fitting.
• sci-libs/ausaxs + dev-python/pyausaxs — AUSAXS solvent-scattering calculator and its Python bindings.
• sci-physics/xraylarch — XAFS analysis; modern replacement for the discontinued ifeffit.
• sci-physics/demeter — classic Athena/Artemis XAFS GUIs (Perl).

DeaDBeeF plugin collection

Twenty-six media-plugins/deadbeef-* packages, covering audio format support (opus, vgmstream, vfs-rar, archive-reader, bs2b), visualization (spectrogram, musical-spectrum, vu-meter, dr-meter, waveform-seekbar), playback/session control (playback-order, playback-status, headerbar, quick-search, rating, replaygain-control), file browsing (fb, bookmark-manager), desktop integration (gnome, statusnotifier, discord-presence) and output plumbing (jack, pulse2, stereo-widener, copy-info, customizable-toolbar).

Micromagnetism

sci-physics/mumax (GPU finite-difference, Go + CUDA), sci-physics/oommf (Tcl/Tk reference implementation), and sci-physics/vampire (atomistic spin dynamics).

Design choices

Python 2 preservation

::gentoo removed Python 2 support in 2024. sci-visualization/gwyddion 2.x ships pygwy, Python 2 bindings used by user analysis scripts; Gwyddion 3's GI bindings don't yet cover everything pygwy exposes, so those scripts still need a py2 runtime. This overlay vendors a small Python 2 surface to keep them working:

• Locally-vendored eclasses in eclass/: distutils-r1_py2, python-r1_py2, python-single-r1_py2, python-utils-r1_py2. Inheriting one of these is the signal that a package is intentionally pinned to py2.
• py2 forks of core libs under dev-python/*-python2: numpy-python2, certifi-python2, setuptools-python2, setuptools_scm-python2, pycairo-python2. Named distinctly so they can coexist with the py3 versions from ::gentoo.
• py2-only legacy packages kept as-is: pygobject-2.28.6, pygtk-2.24.0, unittest-or-fail.

Expected pkgcheck warnings from this corner (UnderscoreInUseFlag, PythonMismatchedPackageName, RequiredUseDefaults) are suppressed globally in metadata/pkgcheck.conf with a comment explaining why.

Qt5 revival mirror

::gentoo last-rited the entire dev-qt:5 set on 2026-05-15 (bug #948836) and started treecleaning Qt5 consumers (dev-python/pyqt5 went 2026-05-21). sci-physics/mantid and a few other consumers will need Qt5 through 2026 at minimum, so this overlay carries the full slot:5 set at v5.15.19-lts-lgpl with the KDE Qt5 Patch Collection applied via the local qt5-build.eclass.

• 23 dev-qt/* packages at 5.15.19 — linguist-tools, qtconcurrent, qtcore, qtdbus, qtdeclarative, qtgraphicaleffects, qtgui, qthelp, qtmultimedia, qtnetwork, qtopengl, qtprintsupport, qtquickcontrols, qtquickcontrols2, qtsql, qtsvg, qttest, qttranslations, qtwayland, qtwebchannel, qtwidgets, qtx11extras, qtxml. All keyworded ~arch (qtwebchannel limited to ~amd64 ~x86 per upstream's narrower keyword history). dev-qt/qthelp and dev-qt/qtwebchannel keep their pre-import 5.15.18 ebuilds alongside; the other 21 ship 5.15.19 only.
• dev-python/pyqt5 + dev-python/pyqt5-sip — revived at PyPI-latest after ::gentoo's treeclean.
• x11-libs/qscintilla-2.14.1-r1 (the last Qt5-compatible slot), with =x11-libs/qscintilla-2.14.1-r2 (Qt6-only) masked in profiles/package.mask.
• KDE Qt5 Patch Collection bundles mirrored to extra-stuff as signed-tag-pinned .tar.xz distfiles; the eclass fans the SRC_URI out across the github / codeberg / gitlab raw URLs.
• profiles/package.unmask overrides ::gentoo's bare dev-qt/*:5 masks so these ebuilds stay installable for overlay users.

Drop the mirror once mantid finishes its Qt6 port and the other consumers follow.

Other targeted fixes kept in-tree

• sci-libs/hdf 4.2.16 / 4.3.1 — local bumps; 4.2.16 carries a gcc 15 build fix, 4.3.1 is ahead of ::gentoo's 4.2.15-r2.
• x11-libs/gtk+-2.24.33-r99 — gtk+:2 holdover for apps that still need it.
• dev-python/bokeh — 2.4.2 dropped, 3.4.1 and 3.9.0 kept with the deprecated flaky test dep removed.
• dev-python/py4dstem 0.14.18 — carries upstream PR #712 for numpy 2 compatibility.
• dev-python/cupy 13.6.0 / 14.0.1 — ROCm USE flag dropped from 13.6.0 (cupy 13's HIP backend is incompatible with ROCm 7.x hipBLAS); cupy 14 dropped ROCm support entirely upstream.
• Several media-plugins/deadbeef-* plugins carry patches for DeaDBeeF's modernized C API.

Also here

• XMPP clients — net-im/profanity, net-im/stabber, net-im/xmppconsole, dev-libs/libstrophe.
• Collaborative editing — app-editors/gobby, net-libs/libinfinity, acct-{group,user}/infinote.
• Kernel / low-level — sys-kernel/pf-sources, sys-kernel/flex-sources (pf-kernel's "flex" sibling spine, tracking pre-release upstream kernels), sys-apps/dkms-gentoo, sys-kernel/kernel-cleaner.
• Visualization — sci-visualization/gwyddion, sci-visualization/gwyddion3.
• Crystallography / atomistic — sci-physics/bgmn, sci-physics/profex, sci-physics/prismatic, sci-libs/nexus, sci-libs/pycifrw.
• SuiteSparse imports — sci-libs/{amd,camd,cholmod,colamd,ccolamd,umfpack,suitesparseconfig}.
• Retro / fun — x11-terms/cool-retro-term, games-roguelike/adom, games-roguelike/dwarftherapist, games-misc/fortune-mod-lorquotes.
• Niche tools — dev-lang/tcc, dev-vcs/fossil, app-office/mytetra, app-misc/tudu, sys-fs/google-drive-ocamlfuse, app-text/pandoc-crossref-bin, app-portage/portconf (/etc/portage cleaner; forked to istitov + bumped to 2.0.0 in this overlay).
• CUDA / generic ML inference — dev-python/cuda-bindings, dev-python/cuda-python, dev-python/cuda-pathfinder, dev-python/cuda-tile-bin, dev-python/pycuda, dev-util/nvidia-cuda-toolkit, dev-python/vllm.
• Masked but kept: net-misc/ipx-utils (IPX removed from Linux in 4.18), app-portage/portopts (upstream dormant since 2014). Each mask in profiles/package.mask carries a comment explaining why and when it should lift.

Repository layout and conventions

• Thin manifests, masters = gentoo only. Every package depends on ::gentoo being enabled.
• Profiles under profiles/ follow standard PMS layout.
• Patches live in <category>/<package>/files/ and are applied via PATCHES=() or src_prepare().
• Commit messages use subject + body form (72-char subject, blank line, rationale). Single-line messages only for truly trivial edits.
• metadata/pkgcheck.conf documents which checks are suppressed and why (not just that they're suppressed).
• CI runs pkgcheck scan on every PR and push (delta only), plus a full --net scan every three days via scheduled workflow.

Credits

Originally created by @megabaks; see the contributors list for everyone who has contributed since. Thank you.

License

Ebuilds and associated files are distributed under the GNU General Public License v2, matching ::gentoo. Upstream sources retain their own licenses as declared in each ebuild's LICENSE variable.