Operations software01 / 05
RoadBoxOS & AtomicOS
Equipment tracking, serialized assets, kit assignments, scanning, reconciliations, and a Linux-hosted quartermaster appliance.
FastAPISQLiteRaspberry PiQR / Barcode
Read case study ↗Calvin Miller / engineering portfolio
Built for the real world.
I turn operational problems into software, connected infrastructure, and useful tools. From scanning serialized assets to running Linux and local AI, I build systems that do the work.
Business systems • Linux & virtualization • Automation • Technical operations
BUILTBYCAL / SYSTEM OVERVIEW
$ systems status --overview
01 / BUSINESS SYSTEMSBUILD
02 / INFRASTRUCTURERUN
03 / REAL OPERATIONSIMPROVE
> Requirements from real workflows
> Hardware + software + people
> Deploy, validate, troubleshoot, repeat
> Hardware + software + people
> Deploy, validate, troubleshoot, repeat
2025
Independent inventory design began
5
Featured technical case studies
10+
Users of a self-hosted service
1
Engineering mindset: make it work
Selected projects
Builds with a purpose.
Different problems, common approach: understand the workflow, build a working system, and make it dependable for the people using it.
Self-hosted AI02 / 05
Artemis
A Proxmox-powered AI workstation with Linux services, GPU passthrough, local inference, and experimental voice and knowledge integrations.
Proxmox VEUbuntuCUDAOllama
Read case study ↗Hosted service03 / 05
CalFlix
A private Linux-based media platform with network access, managed storage, onboarding, and ongoing support for real users.
Linux MintJellyfinTailscaleStorage
Read case study ↗Radio data & integration04 / 05
Watchtower / OSINT
ADS-B aircraft collection and local API exploration, with a roadmap for weather, road intelligence, and private notifications.
ADS-BFastAPISQLitePython
Read case study ↗Application prototype05 / 05
Pantry Tracker
A household inventory prototype that prompted interest from a professional engineer in running his own copy.
User workflowsPrototypingIteration
Read case study ↗My approach
From pain point to working system.
01 — Understand
Observe users, equipment, edge cases, and decision points before writing software.
02 — Integrate
Connect data, applications, physical hardware, networking, and deployment services.
03 — Validate
Test the real workflow, read the logs, resolve failures, document what changed.
A different engineering path
Operations experience. Engineering curiosity.
I came to technology through years of hands-on technical production and equipment operations. That background trained me to solve problems under pressure and think about the whole system—not just one piece.
Today I design and operate independent applications, local AI infrastructure, and self-hosted services. I use AI-assisted development where useful while owning the requirements, testing, configuration, integration, and troubleshooting of what I build.
I'm interested in business systems, infrastructure operations, internal tooling, and roles that connect technical execution with people who need dependable solutions.
Let's connect
Have something interesting to build?
I enjoy discussing software architecture, infrastructure, business problems, and the technical decisions that turn ideas into working tools.
View GitHub profile ↗LinkedIn ↗Email Calvin ↗Professional email link will appear when the mailbox is activated and tested.