Releases

The ToyOS kernel ABI: syscall numbers, struct layouts and typed syscall wrappers.

Remade FFmpeg (Rust): HEVC / H.265 video decoder — pure Rust via rusty_h265.

Remade FFmpeg (Rust): FLAC lossless audio decoder.

Remade FFmpeg (Rust): H.264 / AVC video codec — pure Rust via rusty_h264.

Remade FFmpeg (Rust): GIF still-image codec (first frame).

Remade FFmpeg (Rust): AV2 decoder, backed by the in-house pure-Rust rusty_av2d engine (no C/FFI).

Remade FFmpeg (Rust): codec abstraction — Decoder/Encoder traits and the codec registry (libavcodec core).

Custom implementations and core utilities for pid7-org projects

Remade FFmpeg (Rust): core media primitives — frames, packets, formats, errors (libavutil-equivalent).

The PaperPaw plugin SDK, the only API plugins (including first-party ones) use

PaperPaw browser: reads web pages like books and fetches books and fonts from the web

PaperPaw battery use: records the battery while the device is awake, with what it did, and shows how long it lasts

PaperPaw about page: version, licence and the licences of what it bundles

PaperPaw default fonts: Literata for reading, Source Sans 3 for the UI

PaperPaw hyphenation patterns for German and English

PaperPaw XTC and XTCH: the Xteink readers' pre-rendered page format

Nat+ — A natural English programming language that compiles to standalone native binaries via rustc

StarDict dictionaries for PaperPaw: looked up in place, with dictzip, synonyms and little memory (no_std)

PaperPaw EPUB 2/3 support: streaming conversion, table of contents, metadata

PaperPaw plain text format: encodings, paragraph detection, Project Gutenberg metadata

PaperPaw reading aids: bold word beginnings and replaced words, as text filters

The PaperPaw kernel: plugin host, registries, input routing and rendering (no_std)

PaperPaw's native code plugin files (.ppn): their format, authors' signatures, how they are checked and moved to where they run, the table the firmware gives them, and what the X4 keeps behind its firmware (no_std)

Page layout for PaperPaw: lays out documents into pages (no_std)

Font loading, glyph rasterization, caching and line breaking for PaperPaw (no_std)

Streaming ZIP reader for PaperPaw: reads archives in place, inflates entries chunk by chunk (no_std)

Reads and writes SQLite database files page by page, e.g. to exchange KOReader's statistics (no_std)

Framebuffers and drawing primitives for PaperPaw (no_std)

Streaming JPEG and PNG decoding to grayscale for PaperPaw, with bounded memory (no_std)

The JSON web services answer with: flat objects read whole, any JSON read as it streams with little memory (no_std)