In the Testing device hardware neighborhood (Desktop and utilities). In town since 29 Oct 2026.

Nobody has claimed this office yet. Tablif records every new product and gives it an office; when its owner claims it, the lights go on.

What Tablif read on Cobuild's site

Cobuild describes itself as: “Cobuild The place to discover hacks and mods for the devices you own”

Stage: Live, no waitlist

What it is

Calls itself “catalog”.

Calls itself: catalog

“…co.build is a catalog of open-source apps, tools and firmware that change what a device you already own can do.”

What it costs

No monthly plan.

Monthly: no

“You paid for the device, but the company still controls it: ads on your TV, a monthly fee for your wearable, a speaker that's always listening, a paywall on your doorbell.”

How it runs

Open source. AI is a side feature.

Open source: yes
AI role: a side feature

“Open-source builders have fixed most of it, but the fixes are buried across GitHub, Reddit and X.”

“Paste a setup prompt into Claude or ChatGPT, or request what gets built next.”

What it works with

Names ChatGPT, Claude and 4 more on its pages.

Names: ChatGPT · Claude · Oura Bar · +3

“Paste a setup prompt into Claude or ChatGPT, or request what gets built next.”

“Oura Bar on Oura Ring Gen 3”

What it offers as proof

Live, no waitlist. Claims “2,900+ mods”. Instant signup.

Number claimed: 2,900+ mods
Instant signup: yes

“Sign in”

“…co.build puts 2,900+ mods for nearly 3,000 devices in one place.”

Sources

Tablif read these pages, last on 29 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

Cobuild · Office #55,469