Charles Hartmann · New York

Networks by day.
Apps by night.

I’m a Senior Network Systems Technician. After hours I build Android apps as Hartmann Studios and run Homelab the Right Way: a daily blog, ebooks, YouTube videos and a weekly podcast.

  • 49 apps on Google Play
  • 2 more coming soon
  • 18 ebooks
  • Weekly podcast
Charles Hartmann
Hartmann Studios

Android apps I build

All 51 apps
10K+ downloads

LiveCaptionN – Live Captions

Free live captions and translation that float over any app, video or call. Offline on the phone, or on your own Whisper server.

Symptom Diary

One-tap migraine and IBS diary that correlates episodes with sleep and steps from Health Connect.

EventCrew: Find Your Group

Keep your group together at concerts and festivals. Friends join from a link.

EV Charge Tracker

Charging cost and efficiency done right: home vs public split, mi/kWh, battery health, service reminders.

ADHD Focus Companion

One task, one timer, no shame. A focus companion for ADHD adults with kind nudges and a lock-screen timer.

Gig Mileage Tracker

Automatic mileage for rideshare and delivery drivers. No trip caps, one-tap classify, IRS-ready CSV/PDF.

Wild Lens: Jungle Rescue

Photograph jungle wildlife, expose a poacher ring and free animals with Pip.

Coming soonWebsite

Nightsay: Snore & Sleep Talk

Snore & sleep talk recorder with clips, a Sleep Score and insights on your phone

Coming soonWebsite
Homelab the Right Way

Latest from the blog

More posts
Podcast

Homelab the Right Way Podcast

All episodes

Three AI hosts (fictional, AI-generated voices) talk backups that restore, home networking, Home Assistant and self-hosting. New episodes on Sundays.

Oct 19, 2026

Ep. 1: The green check lies — backups, networking, self-hosting and a turtle

Three AI hosts, real homelab answers. In the first episode Maya, Sam and Theo dig into why the green check on a Proxmox backup job proves…

Charles Hartmann Tech Services

Not your average IT

Tap a service to see what’s included.

I keep an eye on your computers so problems get caught early, often before anyone notices. Updates, alerts and remote help, handled by a network technician.

What’s included

  • Health checks on PCs and laptops: disk space, drive health, backups
  • Windows and app updates on a schedule that suits you
  • Alerts when something needs attention, plus a plan to fix it
  • Remote support sessions (with your OK), so most fixes need no visit
  • Antivirus and backup status checks
  • A plain-English summary of what was found and fixed

Who it’s for

Small businesses, churches and nonprofits, and home offices without an IT person on staff.

Websites and web apps that load fast, look right on phones, and are easy for you to keep up to date.

What’s included

  • WordPress sites: setup, theme, pages and plugins
  • Custom web apps and Progressive Web Apps (installable, work offline)
  • Hosting, domains, SSL certificates and DNS records
  • SEO basics: titles, descriptions, sitemaps and page speed
  • Contact forms, booking and newsletter signups
  • Updates, backups and fixes after launch

Who it’s for

Small businesses, churches, creators and anyone who needs a site that just works, from one page to a full app.

Set up and manage the phones and tablets your team uses from one place, so they stay secure and ready to work.

What’s included

  • Enrolling new and existing phones and tablets (Android, iPhone, iPad)
  • Security policies: passcodes, encryption and OS updates
  • Wi-Fi, email and app settings pushed to every device
  • Deploying and removing apps
  • Lost or stolen device: locate, lock or wipe it remotely
  • Keeping work data separate on staff-owned phones

Who it’s for

Businesses and organizations with company or shared phones and tablets, or staff who use their own phones for work.

I’m available for freelance work. More about me

Contact

Want to work together?