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Obsidian Systems

Obsidian Systems

Obsidian Systems designs and develops high quality software solutions to pressing business problems. Our experienced team has delivered solutions to thousands of consumers.

How to Choose the Right Software Consultancy for Your Project

How to Choose the Right Software Consultancy for Your Project

A Short Checklist for Every Entrepreneur A brilliant business idea, which might change the market, needs an exemplary implementation. Depending on your background, that could be a task for a technology partner who would build the software product and enable you to enter the market with your new solution. When

Building a Haskell CRUD stack with Obelisk for PowerZonePack

Building a Haskell CRUD stack with Obelisk for PowerZonePack

There isn't an abundance online of writing about successful, reliable, and reproducible CRUD stacks for Haskell developers. We wanted to add to the amount of explanation available, using by example the practical context of our work with PowerZonePack, or PZP. PZP is a group of Peloton users who

CI / BC in Nix

CI / BC in Nix

What roles do continuous integration and binary caches play in software development? How does Nix facilitate their implementation? What are continuous integration and binary caching? Continuous integration (CI) is the automation of testing, debugging, and merging when a change is upstreamed to a development team's codebase. It prioritizes

Alamgu: The Rust Ledger Platform

Alamgu: The Rust Ledger Platform

Alamgû (Akkadian) n.: engraver of seals The Beginning Lately, across ecosystems, more blockchain protocols are allowing security-minded users to store their private keys offline, on hardware devices. The leading hardware wallets are the Ledger devices, for which we have been developing applications that expand the range of Ledger-compatible blockchains and

Haskell: How a Lazy Language Was Put to Work (Part Two)

Haskell: How a Lazy Language Was Put to Work (Part Two)

Haskell and the rise of functional programming 2000 - 2015 A major pro-Haskell change in culture has been the rise of functional programming (FP). While much of FP’s contemporary popularity has to do with its value to FinTech, it wasn't until the mid-to-late 2010s that FP became

Haskell: How a Lazy Language Was Put to Work (Part One)

Haskell: How a Lazy Language Was Put to Work (Part One)

This is the first in a series of posts that aims to contextualize Haskell's reputation. As code, Haskell makes it possible to deeply understand what effects a program will and won’t have: immutable constants replace variables; functions do nothing but produce their result. As a topic of

Seven GUIs in reflex-vty, Part 1: The Counter

Seven GUIs in reflex-vty, Part 1: The Counter

7GUIs defines seven tasks that represent typical challenges in GUI programming -- 7GUIs: A GUI Programming Benchmark 7GUIS is a set of 7 typical GUI programming tasks of varying levels of complexity. We're going to implement the 7GUIs in Haskell using the reflex functional reactive programming framework. The