DArnTech / Services Overview
Everything DArnTech can build for you, on one menu.
Every business has one: a back-office data job that still runs on manual labor — someone chasing down documents, re-entering numbers, or hunting through old files to answer a question someone else could have answered in two seconds.
We build the automation that does that one job on your own machine. No monthly subscription, no bank logins, no third-party server — your data stays in your office.
Describe the pile. We build the thing that processes it.
We build the automation that does that one job on your own machine. No monthly subscription, no bank logins, no third-party server — your data stays in your office.
Describe the pile. We build the thing that processes it.
How DArnTech works
- You own it. Open-source software on infrastructure you control — your data, your subdomain, full export anytime, no lock-in.
- Already proven. Most of what I deploy already runs in my own production stack. You're hiring delivery of a working pattern, not first-time discovery.
- One-to-one. You work directly with the engineer who builds and operates the system — not a support queue, not a project manager.
Custom builds — fixed scope, your machine
On-Premise Workflow Automation
Find the one data job eating hours every week — document processing, invoice matching, report generation, engineering file search — build the automation that runs it on your own hardware. One price, you own it, your data never leaves the building.
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Self-Hosted Small-Business Tools
Analytics, newsletter, invoicing, bookings — open-source replacements for GA4, Mailchimp, DocuSign & more at 30–70% less, running on your own subdomain with real local support.
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Featured build — local bookkeeping firms
Document Intake for Bookkeeping Firms
“My clients never send their stuff on time.”
We take your clients’ bank statement PDFs and receipt dumps and turn them into a reviewed, categorized transaction list in QuickBooks — no bank login, no cloud upload, data never leaves your office.
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Live trade-software demo suite — nine trades, one engine
The self-hosted small-business line includes a per-trade job board + customer status page — $49–79/mo on your own subdomain, 2-week free trial. One shared engine, retargeted per industry. These are real working tools with demo data, live now at acme.darn-tech.com.
🔧 Auto Repair
📱 Phone Repair
🚗 Auto Detailing
🧹 Home Cleaning
🐕 Dog Sitting
📚 Tutoring
🎵 Music Lessons
🚰 Plumbing
Open-ended — scoped on a call
Retrofit Consulting
I audit what you pay for and run on, then replace subscription sprawl and underpowered machines with open-source tools and properly-specced hardware — plus the training to use them. Design firms & studios first.
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Custom Workflow Automation
Custom n8n automations that move data between your apps — with real error-handling, not brittle flows that break silently. A Zapier/Make replacement you host yourself, no per-task fees.
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Fractional Senior Engineering
Need a senior engineer to own an ambiguous problem and ship it — without a full-time hire? I embed with your team part-time and deliver production systems end to end, infrastructure through application layer.
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Not sure which one you need?
That's what the call is for. 30 minutes, I learn your stack, and I tell you straight whether I'm the right fit — and if I'm not, who is.
Book a 30-min call