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@tschk

The Software Company of Hong Kong

a native systems + runtime infrastructure lab making utilitarian software that's as nice to use as it was fun to make.

The Software Company of Hong Kong

an independent R&D lab building systems software, runtimes, developer tools, application platforms, and experimental computing platforms.

Write once. Target desktop, terminal, web, browser extensions, mobile, and embedded systems.

Crepuscularity combines React-style development with native rendering across GPUI, Ratatui, SwiftUI, Jetpack Compose, MV3 extensions, LVGL, and the web with a Rust, Javascript or Swift backend.

Stars Crates.io Repository

Star History Chart

(i'll be big one day! :))

Projects built on Crepuscularity:

  • Aurorality — native Apple platform tooling and SwiftUI generation
  • Dot — terminal-native AI agent
  • rs_vimium — Vimium reimagined in Rust
  • Anywhere — interactive AI-generated interfaces and artifacts
  • Drift — the macOS screensaver as your wallpaper
  • Mono — distributed application platform (coming soon)

Equilibrium

Cross-language interoperability without glue code.

Load any C-compiling language from any other C-compiling language while preserving native developer workflows.

Repository

Projects:

  • EqSwift — Rust ↔ Swift interoperability

A hyperlightweight musl+LLVM Linux distribution. Boots in less than a second, smaller than an average image taken on a phone.

Alpenglow supports two deployment modes: an immutable initramfs-only appliance mode with a RAM root and GlowFS overlay, and a normal rootfs mode for package-managed systems.

Repository

Projects:

  • Soliloquy — immutable web-native operating system

RV8

A browser engine combining Servo rendering with the V8 JavaScript engine.

Repository


A capability-aware compiler pipeline (with support for multiple frontends) and orchestration language for deterministic execution, distributed systems, and agent-native software.

Repository

Projects:

  • Space — post-POSIX operating system where components, capabilities, and execution graphs replace processes and syscalls

Rotary

A pure Rust agent harness engine. Hosts embed it for the agent loop, tools, providers, sessions, permissions, computer-use, and IPC while retaining product and scheduling policy.

Repository


An open-source, local-first peer-to-peer social chat network with wallet identity, private encrypted messaging, and no central message store.

Repository

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  1. crepuscularity crepuscularity Public

    write react for gpui tui and embedded, write rust for web extensions, write both for websites, swiftui, mobile apps and more.

    Rust 25

  2. alpenglow alpenglow Public

    hyperlightweight minimal diskless *nix operating system

    Rust 9

  3. soliloquy soliloquy Public

    the immutable web-native ultraminimal operating system.

    Rust 3

  4. wax wax Public archive

    Forked from plyght/wax

    wax is faster than homebrew. it's also cooler. use it.

    Rust 3 1

  5. eqswift eqswift Public

    two lines to ffi rust to swift automagically.

    Rust 3

  6. inauguration inauguration Public

    compiler for 40 languages, import libraries from any ecosystem and use them as if they were one. compiles itself in <2s with a 9mb binary, no LLVM.

    Rust 3

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