Cooper Beitman
Bridgeport, Connecticut

Software and hardware for running an apartment office, used in one every day.

Built for Hub Realty’s office: the books, the paperwork, the day’s work, the field — and the machines it runs on, a small cluster behind the office, the wall board, the cameras. It reads the accounting system and never writes to it. Every decision stays with a person.

Open the demo an invented company, sample data only, resets every night

Updated October 15

The work, measured

1person building it
164updates shipped in the last 30 days
18 of 30days with a shipped update
340files touched in 30 days
1,397updates since July 2026
82screens in the build

One person builds this, between the day's work. Counted from the repository itself, refreshed every hour.

What it does

The operating system

One system for the office. It keeps a read-only copy of the books, reads the paperwork, and lists what needs a person.

live

The field app

Photos and a note from the unit you are standing in. Visits, basement and storage threads, walk-through videos, move-in and move-out walks. Works offline.

live

Move-outs and deposits

The walk, the price sheet next to the photos, the move-in record beside the move-out findings, and the letter on each state’s deadline.

building

A page for every resident

Each home gets one link — no sign-up, no password: what’s owed, the ledger, the lease and papers, inspections, notices, repairs, a line to the office answered in place. Welcome, renewal and deposit letters draft themselves from the record.

live

The wall board

The whole sheet on the big office panel, reconciled between the office sheet and the books, refreshing itself — and a watchdog that turns the screen back on when the building does.

live

The paper archive

The company’s paper, scanned and searchable, with the original page one click away.

live

The lease reader

Reads a lease the way a careful paralegal would and flags what a person should look at before signing.

live

Pool passes

Residents apply online; the pass lives on their phone; the attendant checks it at the gate.

live

Cameras and doors

The communities’ cameras, watched from the office over the recorders already installed — live, with replay — and the door systems that were already there. Nothing new bolted to a building.

live

The machine room

A small cluster of real machines behind the office: one serves the system, one keeps the nightly copies and does the heavy work on a graphics card, one watches the cameras. Backups cross to a second box every night.

live

The design constitution

The written standard every screen follows.

live

Shipped lately, and next

Lately

  • Oct 9Agent list vs office sheet: rows pair only on the canonical unit within the community.
  • Oct 9Questions to staff: an office record.
  • Oct 5Visit page: plate? and × taps on fresh photos work again.
  • Sep 28From the books on the agents' own lists.
  • Sep 28From the books answers only the office list.
  • Sep 26Owing row says when collections last checked.
  • Sep 26Public home doorline: the Hub Realty site-admin link pointed at a WordPress path that never existed; it is the prices admin door.
  • Sep 2509-26 security audit: a sheet cell is words, never a formula.

Next

  • Inspections that schedule themselves off the lease, and a report the resident receives.
  • A storage room per building in the field app.

Doors

Open the demo · Staff sign-in · Hub Realty · Available apartments · Apply · Pool pass · Put Shelter on a phone · Notes · Contact the office

Cooper Beitman works in the office at Hub Realty Associates in Bridgeport, Connecticut, and writes this software himself to help the people there. It is called Shelter. A little more →

If you run an apartment office and want to see it working, write. Early access is by conversation.