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Homelab TwinDC Sim by Sensaka
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Homelab Twin

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Homelab TwinDC Sim by Sensaka
RACKDENSITY: all products

Theme

See it · demo lab · simulated data

See Homelab Twin

The app isn't open to the public yet. Watch it here, or book a short walkthrough and we show it to you on a call.

Request a walkthroughE-mail me when Try opens
When Try opens: nothing is saved, close the tab and it's gone. $5/month keeps it.
Tour· Overview → Power → Network → Fail · 28 s
Search a device, open it, press Fail: the network diagram shows everything that loses connectivity.
Lights off· animated share · 8 s loop
Lights off saves an estimated 145 W, about €34 a month, in the demo lab. Every lab can export this as a GIF or a video.

Stills

Overview· simulated data
The demo lab in 3D with the lights off: two racks, device labels, the readout at the topThe demo lab in 3D with the lights off: two racks, device labels, the readout at the top
Flaw Finder· simulated data
Flaw Finder: the UPS is a single point of failure; 14 devices would go dark, with the fix
View menu· simulated data
The View menu: Overview, Power, Heat, Network, Cables, Compute, AI
Cables · Pro· simulated data
Cables at the rear of both racks, coloured by type, with a cable count per device
Phone· simulated data
The demo lab on a phone-sized screen with the lights off (emulated)
Phone layout, browser emulation; not yet tested on real devices.

Get your sheet ready

Your lab in three steps

  1. 01Download the template. One sheet per topic: Devices, Cables, Racks, Power, Networks, Readings.
  2. 02Fill in Devices. One row per device, with rack, U (the lowest unit it sits in) and model. Leave U empty for gear outside the rack, such as access points, cameras or the ISP box.
  3. 03Import it. .xlsx, or one CSV per sheet. You get an import report (rows imported, rows skipped with the reason, checks pinned on the rack), then your electricity price.
Download the template (.xlsx)Download the Basement Lab example

Close the tab and it's gone

Try keeps your lab in the browser tab only: no cookies, no browser storage, nothing sent to a server. Download your lab as a file to come back to it. Accounts that keep your lab are launching soon.

No cookiesNo storageNo upload

What the import checks

Two devices in one U · a port used twice · 10G on a 1G port or fiber into RJ45 · both power supplies on one feed · a power strip over 80 % · UPS runtime under 5 minutes · a cable shorter than its run · missing labels · undefined VLANs · port errors · cable ends that name an unknown device.

Questions

Why is there no public demo?

We are not opening Homelab Twin to everyone yet. Until we do, you can see it here in clips and stills, or in a walkthrough with us.

What happens in a walkthrough?

A short video call: we open the demo lab and show the views you care about, from the power chain and the Fail what-if to the Flaw Finder and lights-off mode, and answer your questions.

Which file formats will work?

An .xlsx workbook in the template layout, or one CSV per sheet with the same column names.

My device isn't in the catalog. What happens?

Pick it from the device catalog by category and brand, or describe your own device and reuse it. In a spreadsheet, an unknown model still appears as a plain box of the right height, in the right U.

Is anything uploaded or saved?

No. The file is read in your browser, and without an account nothing is stored: no cookies, no browser storage, nothing sent to a server.