spark -- credits and licenses

spark vendors none of the projects below but the three fonts, which sit in lib/spark/forge/fonts/ for the page. bootstrap.sh downloads each of the others, pinned by version and sha256, from its own upstream to your machine at install time. spark voice downloads the voice the same way, only when you turn it on. apt, pacman, xbps, dnf and zypper install the rest from their own repositories. spark's own code is MIT (LICENSE). The banner in home/.config/spark/banner is spark's own artwork.

The engine

llama.cpp -- https://github.com/ggml-org/llama.cpp -- MIT (c) The ggml authors

Release b11960 (LLAMA_VERSION in engine.env), 6 flavours, each pinned by sha256: macOS arm64, macOS x64, Linux x64, Linux x64 Vulkan, Linux arm64, Linux arm64 Vulkan.

The voice

sherpa-onnx -- https://github.com/k2-fsa/sherpa-onnx -- Apache-2.0 (c) Xiaomi Corporation

Release v1.13.8 (VOICE_RUNTIME_VERSION in voice.env), 3 flavours, each pinned by size and sha256: Linux x64, Linux arm64 and macOS. Each carries onnxruntime -- https://github.com/microsoft/onnxruntime -- MIT.

spark voice on or clear downloads the models it runs into ~/.local/share/spark/voice, each pinned by size and sha256 in voice.env:

• Kokoro-82M v1.0 -- https://huggingface.co/hexgrad/Kokoro-82M -- Apache-2.0, the voice, in sherpa-onnx's full-precision export. Its tarball carries espeak-ng-data -- https://github.com/espeak-ng/espeak-ng -- GPL-3.0, downloaded with it and never vendored.
• Whisper base -- https://github.com/openai/whisper -- MIT, the ears, in sherpa-onnx's int8 export.
• Silero VAD -- https://github.com/snakers4/silero-vad -- MIT: where a spoken question ends.

The tale

The text in home/.config/spark/tale is the maintainer's own, CC BY-NC-ND 4.0.

The packages

apt, pacman, xbps, dnf or zypper installs these from the distro's own repositories, unpinned. macOS needs none. The names are the distro's own, as distro/debian.env, distro/arch.env, distro/void.env, distro/fedora.env and distro/opensuse.env list them. tests/docs_test.py checks that every name there is credited here. Where the families name one project differently, every name is here.

• git -- GPL-2.0-only.
• curl -- the curl license.
• ca-certificates -- MPL-2.0, Mozilla's bundle as the distro ships it.
• openssl -- Apache-2.0, the binary spark serve https own mints with.
• python3 -- PSF-2.0, on Debian, Void, Fedora and openSUSE.
• python -- PSF-2.0, Arch's name for python3.
• tar -- GPL-3.0-or-later, GNU tar, on Fedora and openSUSE. It unpacks the engine, and a minimal install there has none.
• libgomp1 -- GPL-3.0-or-later, with the GCC runtime exception. The name on Debian and openSUSE.
• gcc-libs -- GPL-3.0-or-later, with the GCC runtime exception. Arch's libgomp, in base there.
• libgomp -- GPL-3.0-or-later, with the GCC runtime exception. The libgomp1 of Void and Fedora, its own package there.
• libvulkan1 -- Apache-2.0, the vulkan build only. The name on Debian and openSUSE.
• vulkan-icd-loader -- Apache-2.0, Arch's libvulkan1, the vulkan build only.
• vulkan-loader -- Apache-2.0, the libvulkan1 of Void and Fedora, the vulkan build only.
• mesa-vulkan-drivers -- MIT and others, the vulkan build only. The name on Debian and Fedora.
• vulkan-radeon -- MIT and others, Mesa's AMD driver on Arch, the vulkan build only.
• vulkan-intel -- MIT and others, Mesa's Intel driver on Arch, the vulkan build only.
• mesa-vulkan-radeon -- MIT and others, Mesa's AMD driver on Void, the vulkan build only.
• mesa-vulkan-intel -- MIT and others, Mesa's Intel driver on Void, the vulkan build only.
• libvulkan_radeon -- MIT and others, Mesa's AMD driver on openSUSE, the vulkan build only.
• libvulkan_intel -- MIT and others, Mesa's Intel driver on openSUSE, the vulkan build only.

The apps

An app's plugin is its own repository with its own credits, at github.com/forgewright-ai/<name>. The apps are spark-micro, spark-neovim, spark-vim, spark-helix, spark-nano, spark-w3m, spark-newsboat, spark-aerc and spark-acp.

Models

bootstrap.sh downloads them, never vendored. Each row's size and sha256 come from Hugging Face's file metadata, and every row in models.env names its license. The GGUF quantizations are by bartowski and unsloth, and IBM's own for Granite.

• Gemma 4 (E2B, E4B, 26B-A4B) -- https://huggingface.co/google -- Apache-2.0.
• Qwen3 (4B, 8B, 14B, 30B-A3B, Coder-30B-A3B) and Qwen3.5 (2B, 4B) -- https://huggingface.co/Qwen -- Apache-2.0.
• Granite 4.2 8B -- https://huggingface.co/ibm-granite -- Apache-2.0.

Built with Claude

The v1.0 refactor and simplification were designed and implemented with Claude (Anthropic) in Claude Code, directed and reviewed by the maintainer. That work was the layer split, the guided first run, the model catalogue, the chooser, the chat, the fresh-account proofs, and these docs. Every such commit carries a Co-Authored-By: Claude trailer, so git log tells the same story as this paragraph. The mistakes are the maintainer's.

The fonts

The page in the browser, and spark.forgewright.ai with it, set their text in three fonts. Each is under the SIL Open Font License 1.1: free to use and to ship with the software, the license kept alongside, and never sold on its own. In lib/spark/forge/fonts/, Monaspace Neon and Xenon are the v1.400 release's own web fonts, regular and bold, with their whole coverage. Atkinson Hyperlegible Next is the Latin subset as Fontsource packages it.

• Atkinson Hyperlegible Next -- https://www.brailleinstitute.org/freefont -- SIL OFL 1.1 (c) Braille Institute of America. The prose.
• Monaspace Neon and Monaspace Xenon -- https://github.com/githubnext/monaspace -- SIL OFL 1.1 (c) GitHub. The code and the headings.

The site's glyphs

Simple Icons -- https://simpleicons.org -- CC0 1.0. The Debian, Arch, Void, Apple and GitHub glyphs inline on the front of spark.forgewright.ai, which is rendered outside this tree. The Windows panes are drawn by hand.

Corrections

A correction or a missing name is a pull request away.