Andrew Ryder

Software, systems, and practical problem-solving.

I'm a hands-on technology professional with experience spanning software development, IT support, networking, and infrastructure.

I enjoy building useful tools, figuring out why things aren't working, and helping people and organizations make technology work better for them.

Explore my projects → Get in touch →
Featured Applications

Selected Work

Two independently developed web applications focused on civic utility, domain data synthesis, and reliable edge infrastructure.

Independent project · Private source

PoaIndex

Making historical turfgrass trial research easier to compare, with cultivar recommendations grounded in local and regional evidence.

Learn more →
Independent project · Private source

NH Fuel Watch

Helping New Hampshire residents discover heating-fuel providers, compare publicly posted oil and propane prices, and explore historical trends.

Learn more →

Other public projects

Focused tools built to solve specific hardware, monitoring, and educational problems.

NetWatcher for UniFi

GitHub →

A lightweight unknown-device monitor for UniFi network controllers featuring an integrated Web UI, SQLite history, approval workflows, and pluggable Pushover and webhook alerts.

SNHU Tools

Live Site → GitHub →

Unofficial interactive academic planning, degree maps, course prerequisite graphs, and transfer equivalency tools built for SNHU students based on published catalog data.

CyberPower UPS

GitHub →

A modern C++17 library and command-line tool for communicating directly with CyberPower UPS hardware over USB HID and serial, engineered to eliminate legacy x86 driver dependencies on Apple Silicon.

DockNet

GitHub →

A native Swift macOS menu bar utility providing quiet visibility into physical Ethernet and Wi-Fi failover transitions without interfering with system routing or VPN tunnels.

Home Assistant

I build and maintain public integrations that bring household devices, utilities, and communications services into local dashboards and automations.

Browse all nine integrations

A practical, broad-based practice

My work spans software, infrastructure, IT operations, and the small details that make systems feel reliable to the people who use them.

Read about my background and experience

Photography

Outside of software and systems, photography offers a way to slow down and explore observation, composition, and light.

Explore photography

Contact

I am always open to thoughtful conversations about practical software, infrastructure problems, or community technology.

If you have a real-world problem that needs solving, an interesting integration project, or simply want to compare notes on tools and systems, feel free to reach out directly.

Independent project · Private source
The Problem

The National Turfgrass Evaluation Program (NTEP) publishes valuable agronomic trial data, but the records are dispersed across decades of disparate PDF and tabular reports. Comparing turfgrass cultivars across multiple multi-year trial cycles and identifying varieties proven to perform in specific geographic regions requires laborious manual cross-referencing.

The Approach

PoaIndex extracts, audits, and normalizes historical trial results into a structured turfgrass quality corpus. Its recommendations weigh local trial evidence, regional multi-year support, recency, and confidence adjustments; turf-zone information is presented separately as supporting context.

Selected Features
  • Curated historical quality corpus covering multiple grass species and multi-year trial cycles.
  • Recommendations informed by local trial evidence, regional support, recency, and confidence.
  • Cultivar search and side-by-side trial quality comparisons.
  • Read-only edge API designed for high-availability querying without credential barriers.
  • Clean static web exploration interface requiring zero account creation.
Technical Description
Ingestion & certification pipeline built in Node.js and TypeScript. Read-only HTTP API hosted on Cloudflare Workers backed by Cloudflare D1 serverless SQLite. Static web front end built with Vite and React. Cold-storage source archive stored in Cloudflare R2.
Source code is private. Visit live website (poaindex.com) →
Independent project · Private source
The Problem

Residential heating oil and propane pricing varies considerably across New Hampshire suppliers and fluctuates frequently throughout the winter. Because pricing is scattered across dozens of individual company websites, homeowners lack a centralized, neutral reference for posted cash rates or seasonal price trends.

The Approach

NH Fuel Watch is an independent public-benefit information resource for provider-published prices and service-area details. It is not a broker, middleman, or marketplace; each recorded observation includes its source and when that source was checked. Advertised prices may differ from a provider's final delivered price.

Selected Features
  • Tracked public price observations for #2 heating oil and propane where providers publish them.
  • Provider discovery based on documented municipal service coverage.
  • Price observations recorded as immutable integers in mills ($0.001) with source disclosures.
  • Historical price trend visualizations across seasons and regions.
  • Source links and observation dates to support direct verification with each provider.
Technical Description
Full-stack TypeScript application built with React Router v8 using Server-Side Rendering (SSR). Deployed on Cloudflare Workers edge runtime with Cloudflare D1 serverless SQLite. Includes automated scheduled ingestion pipelines with fixture-based scraper verification.
Source code is private. Visit live website (nhfuelwatch.com) →