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@obsidiansystems

Obsidian Systems LLC

Software consultancy specializing in haskell, nix, curiosity, and innovation.

👋 We are Obsidian Systems

We're a software consultancy specializing in building great products on technologies that promote quality and rapid iteration. Check us out at https://obsidian.systems

Welcome to our github page. Here you'll find some of our open source work, primarily in Nix, Haskell, and Rust.

We're the primary authors and maintainers of:

  • reflex-frp, an ecosystem for functional reactive programming
  • obelisk, a framework and tool for full-stack Haskell applications
  • alamgu, an ecosystem for building hardware ledger applications

We do a lot of open source work, so we've tried to organize the repos below:

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  1. obelisk obelisk Public

    Functional reactive web and mobile applications, with batteries included.

    Haskell 1k 112

  2. gargoyle gargoyle Public

    A framework for managing daemons from Haskell and libraries for use with postgresql and nix

    Haskell 23 10

Repositories

Showing 10 of 425 repositories
  • haskell.nix Public Forked from input-output-hk/haskell.nix

    Alternative Haskell Infrastructure for Nixpkgs

    obsidiansystems/haskell.nix’s past year of commit activity
    Nix 3 Apache-2.0 266 0 0 Updated Feb 8, 2026
  • nixos-homepage Public Forked from NixOS/nixos-homepage

    Sources for nixos.org

    obsidiansystems/nixos-homepage’s past year of commit activity
    Less 2 376 0 1 Updated Feb 8, 2026
  • nix Public Forked from LnL7/nix

    Nix, the purely functional package manager

    obsidiansystems/nix’s past year of commit activity
    C++ 4 LGPL-2.1 1,871 0 3 Updated Feb 7, 2026
  • nixpkgs Public Forked from NixOS/nixpkgs

    Nix Packages collection

    obsidiansystems/nixpkgs’s past year of commit activity
    Nix 9 MIT 18,127 0 3 Updated Feb 7, 2026
  • nix-daml-sdk Public
    obsidiansystems/nix-daml-sdk’s past year of commit activity
    Nix 3 3 1 2 Updated Feb 6, 2026
  • morpheus-graphql Public Forked from morpheusgraphql/morpheus-graphql

    Haskell GraphQL Api, Client and Tools

    obsidiansystems/morpheus-graphql’s past year of commit activity
    Haskell 0 MIT 72 0 0 Updated Feb 6, 2026
  • canton-splice Public Forked from hyperledger-labs/splice

    Reference applications for funding, operating, and incentivizing the use of a decentralized, public Canton synchronizer. Includes the Amulet reference application for creating native payment utilities for Canton synchronizers and Daml applications.

    obsidiansystems/canton-splice’s past year of commit activity
    Scala 2 Apache-2.0 62 0 10 Updated Feb 5, 2026
  • obelisk Public

    Functional reactive web and mobile applications, with batteries included.

    obsidiansystems/obelisk’s past year of commit activity
    Haskell 1,022 BSD-3-Clause 112 131 (1 issue needs help) 58 Updated Jan 27, 2026
  • nix-bindings-rust Public Forked from nixops4/nix-bindings-rust

    Use the Nix package manager as a library

    obsidiansystems/nix-bindings-rust’s past year of commit activity
    Rust 2 LGPL-2.1 5 0 0 Updated Jan 25, 2026
  • nix-thunk Public

    seamless management of source dependencies with nix

    obsidiansystems/nix-thunk’s past year of commit activity
    Haskell 43 BSD-3-Clause 11 10 5 Updated Dec 30, 2025