- Services
- Robot Dog Brand ActivationsTwo branded robot dogs, hosted audience engagement, and Northern California travel. $5,000 package. Custom events and travel by quote.
- Conference Booth SponsorshipsShared booths at fintech and tech conferences. Brand placements from $2,500 with funding goals and progress.
- Web
- SoxoaThe company. I map the real work with your team, build the AI worth building in front of you, and stay accountable for it. Start with a free workflow check.
- IntakraCustom buying signals with a cited why-now. Watches a market for the moment something breaks at a target account and names the person who feels it.
- MentionedOnTracks how AI assistants describe and recommend local businesses, so owners see whether they come up and what gets said about them.
- PortravoConstruction takeoffs priced for your metro. Upload plans, verify quantities, get a bill of materials at what materials and labor cost locally right now.
- PostedlyLets an AI assistant prepare physical mail and faxes, with the sender reviewing every detail before payment.
- Preview
- Run For Your LifeA horror fitness concept for AR glasses: a masked killer chases you on real runs, and your heart rate decides how close he gets. Watch the teaser, join the list.
- Made with Claude
- Skill Shareware26 free Claude skills pulled from the workflows I run my products with, each with the story of how it came to be. Public on GitHub.
- After the DemoA podcast about what happens after the AI demo, when someone actually has to run the thing. On soxoa.com and the podcast apps.
- iOS apps on the App Store
- DialedEspresso and pour-over dial-in coach. Log the shot, get the one adjustment to make next.
- CasaCaddyThe app that remembers your house for you. Scan an appliance and it tracks what is aging and what to do before it dies.
- System:
- John Arndt
Builder of small software products
Version 2026 - Registered to:
- Soxoa
soxoa.com
hi@johnarndt.net - Computer:
- 5 web products live
2 iOS apps on the App Store
26 Claude skills, 1 podcast
Mostly one person, one laptop
I design, build, ship, and run a portfolio of small, focused software products, most of them for owner-operated businesses: buying signals, AI search visibility, construction takeoffs, and physical mail an AI assistant can send for you. Lately also free Claude skills, a podcast, and a horror fitness concept for AR glasses. Everything under Projects is live.
Open to see the list, or for the longer version. Grab the Claude skills I've built, watch the preview, explore Robot Dog Activations, sponsor a conference booth, or read the About page.
Give people a reason to stop. Give your brand a way to start the conversation.

Northern California package
$5,000 Two robot dogs. Your brand. Hosted by John Arndt.
Bring your campaign into the crowd with two robot dogs carrying your message and a live host who introduces your offer, answers questions, and directs interested people to your store, booth, or signup.
- Up to four hours on site with scheduled walks, audience interaction, and photo opportunities.
- Two branded poster signs using your supplied logo and campaign artwork.
- Hosted by John Arndt with a briefing on your brand, offer, and campaign goal.
- Northern California travel included, plus setup and teardown.
- A campaign-specific QR code and event photos to help connect the experience to your next step.
Available for San Francisco, the Bay Area, Sacramento, and Northern California. Dates, route, and venue arrangements are confirmed during planning; the four-hour window includes operating breaks.
Built for your next event
Product launches, conferences, grand openings, retail promotions, and brand events. We agree on the audience, message, and next step before the activation.
Custom events & travel
Planning a longer activation, multiple locations, a custom production, or an event outside Northern California? Share your date, destination, and idea for a tailored quote. All activations start at $5,000.
Contact for custom events & travelSend your event date, city or venue, brand, and campaign goal. I’ll reply with availability and the details for your event.
Prefer email? hi@johnarndt.net
Your cardio has consequences. A masked killer chases you on real runs. Run faster and he falls behind. Slow down and he closes in, watching from a rear-cam window inside your AR glasses.
A John Arndt concept for AR glasses. Not an app you can download yet.
JOHN ARNDT - README.TXT
=======================
Hi. This is my corner of the internet, dressed up as a
desktop from 1995. Everything on it is real and links out
to things that are live.
WHAT I DO
---------
I build and run small software products. Most of them
solve one specific, expensive problem for an
owner-operated business:
* finding the accounts worth calling today (Intakra)
* seeing what AI assistants say about a business
(MentionedOn)
* pricing a construction bid for a specific metro (Portravo)
* letting an AI assistant send real mail, with you
approving every detail (Postedly)
Lately I've also been packaging how I work into free
Claude skills (johnarndt.net/skills), making a podcast
called After the Demo, and teasing Run For Your Life, a
horror fitness concept for AR glasses.
HOW I WORK
----------
Small scope, shipped fast, then run for real. I do the
research, the design, the code, the deploy, and the
support. The company is Soxoa.
CONTACT
-------
email hi@johnarndt.net
linkedin linkedin.com/in/johnrarndt
github github.com/johnarndt
web soxoa.com
about johnarndt.net/about
THIS SITE
---------
Static HTML, CSS, and a little JavaScript. No framework,
no tracking, no cookies. Served from Cloudflare.
Icons are hand-drawn SVG. Drag the windows around.
The Recycle Bin is empty.
Things that don’t work get fixed or shut down, not hidden.
You found John. That's the whole prize.
Are you sure you want to shut down?
Nothing will actually happen to your computer.