Software & automation for service businesses

I build it and run the business on it.

I build CRMs, booking platforms, AI tools, and the infrastructure behind them. Vent Busters, my dryer vent cleaning business in the Triad, runs on software I wrote and host myself. 15,000+ dryer vents serviced through systems I own and operate.

github.com/servbin linkedin resume contact

Available

Remote contract work: service business software, AI tooling, system integrations.

Running on

Debian · Proxmox · Coolify · Tailscale · Infisical · Postgres

The proof of concept

Vent Busters

I've run Vent Busters since 2017, dryer vent cleaning across Greensboro, Winston-Salem, High Point, and the towns around them. 15,000+ dryer vents serviced. I built Serenity CRM to book and confirm the work when the subscription stack was costing more than it was worth.

Read Serenity case study →Visit Vent Busters →

“This company is awesome. Scheduling online was easy. Quick appointment. The tech, Mark, is informative, knowledgeable and a great guy. He cleaned inside the dryer and the exhaust to the outside. I recommend Vent Busters!”
Randy C.

“Will use Ventbusters again! Great online experience scheduling appt. My technician was friendly, prompt and efficient. They did a great job.”
Julie H.

“We had a great experience—they were super helpful and went above and beyond. Loved having the ability to schedule online and a flat fee upfront. Highly recommend.”
Amy N.

Selected work

Projects I've shipped.

CRM & booking platform

Serenity

CRM and online booking platform I build to run Vent Busters: online booking, quotes, jobs, voice AI intake, inventory, territories and mobile technician flows.

Territory-aware online booking with quoting, preferred route days, and website embed.
2,000+ online bookings on Vent Busters in the last seven months across web, email, QR, and quote paths.
Voice AI intake, technician mobile flows, and schedule management in one platform.

Next.js / Postgres / Redis / Retell / Caddy / Infisical

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Astro & local SEO site

VentBusting.com

Astro rebuild of the Vent Busters marketing site after years on WordPress. Built for fast pages, local search, content, reviews, and direct booking into Serenity.

Replaced a costly WordPress plugin stack with a repo-owned static site.
Local SEO structure with service pages, 28 city pages, articles, schema, and redirects.
Booking path stays on ventbusting.com and connects directly into Serenity.

Astro / Tailwind / Content collections / Umami / SerpBear

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Browser extension & webhook product

Realty Scraper

Chrome and Firefox extension for exporting Zillow listing data to CSV or sending Pro scrapes directly to webhooks for automation workflows.

Listed on Chrome Web Store and Firefox Add-ons.
Freemium Pro tier with license validation, Helcim billing, and account portal.
Pro webhook export feeds workflows like n8n, LettrLabs, and Serenity attribution.

Extension MV3 / Firefox Add-ons / Astro / Node / Helcim

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AI tutoring platform

Tutorbin

Private Next.js tutoring platform with course-scoped chat, pgvector RAG over uploaded materials, study aids, and calendar workflows.

Course workspaces with multi-thread chat, document ingestion, and streaming responses.
Study aids and syllabus calendar built on the same retrieval stack as chat.
Production audit of 906 messages found RAG misses, loops, and ingestion gaps.

Next.js / Postgres / pgvector / OpenRouter / Coolify

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Thoughts

Notes from the field.

Jul 5, 2026

The wrong answer I gave about AI coding security

A customer asked me how I know my AI-written code is secure. I gave the defensive answer. Here is the better one.

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Jul 1, 2026

Your website should have a page made for AI to read

Docs sites already ship Markdown for agents. Most marketing sites still bury the useful text under chrome. I added the docs pattern here.

Read →

Jun 23, 2026

How I provision and harden a new Debian 12 server: the process, the prompt, and why order matters

Every server in my fleet gets the same two-phase setup: bootstrap first, lock down second. Here's the process, the agent prompt, and why I never combine the phases.

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Jun 19, 2026

Your website now has two audiences: the person who visits and the AI that decides whether to recommend you

ChatGPT referrals started showing up in Vent Busters analytics. The site work I'd already done for humans turned out to matter for AI recommendations too.

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All thoughts →

Contact

I build it and run the business on it.

Projects I've shipped.

Notes from the field.

Tell me what you're building.