> For the complete documentation index, see [llms.txt](https://docs.kouch.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kouch.dev/docs/third_party.md).

# Third-party assets and libraries

This file lists every third-party asset (font, icon, sound, image) and redistributed binary/SDK bundled with Kouch, along with its license. Per `docs/DESIGN.md` §12 item 2, **any new third-party icon, font, sound, or image added to the repo must get an entry here in the same commit** — `npm run brand-lint` / the design-lint checklist treats a missing entry as a failure. Ordinary Rust/npm dependencies pulled from crates.io/npm are covered by their own package manifests and don't need an entry here unless they redistribute a binary or asset directly (as `steamworks-sys` does).

## Fonts

| Asset            | Source            | License                                                                   | Location                                                               |
| ---------------- | ----------------- | ------------------------------------------------------------------------- | ---------------------------------------------------------------------- |
| Inter (variable) | The Inter Project | SIL Open Font License 1.1, "Copyright (c) 2016 The Inter Project Authors" | `app/ui/public/fonts/InterVariable.woff2` + `LICENSE.txt` alongside it |

## Redistributed SDKs / binaries

| Component                                                                                    | Source                                                                                 | License                                                                                                                                          | Notes                                                                                                                                                                                 |
| -------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Steamworks SDK 1.64 headers + redistributables (`steam_api64.dll`/`.lib`, `libsteam_api.so`) | Bundled inside the `steamworks-sys` crate (0.13.0) via the `steamworks` crate (0.13.1) | Valve Corporation's Steamworks SDK license terms (not MIT/Apache — see the SDK's own license text under the crate's vendored `lib/steam/` files) | `build.rs` uses the bundled copy unless `STEAM_SDK_LOCATION` is set; files under `lib/steam/` are governed by Valve's terms, distinct from the rest of the Rust workspace's licensing |

## UI sounds

Kouch's UI sounds (`move`, `accept`, `back`, `error`, `launch`) are synthesized in-house by `scripts/gen-sounds.mjs` (pure sine/square tone generation, no samples, no third-party audio) and are **not** third-party assets. They do not need an entry here; this note exists so a reviewer does not add one by mistake. A Workshop theme that replaces them with its own audio is the theme author's content, not Kouch's, and is not tracked in this file either.

## Adding a new entry

When you add a new third-party asset or a library that redistributes a binary/asset:

1. Add a row to the appropriate table above (or a new table if it's a new category) with the asset name, source/upstream project, exact license, and where it lives in the repo.
2. If the license text itself must ship alongside the asset (as with Inter's `LICENSE.txt`), confirm that file is present and committed next to the asset.
3. Confirm the addition doesn't conflict with `CLAUDE.md` ground rule 1 (no third-party console brand names/imagery) or ground rule 2 (no ROMs/BIOS/firmware/keys) — third-party assets here are things like fonts and SDKs, never game content.


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