Local-first · Open source

Multiplayer vibecoding for building real apps.

sharingu is multiplayer AI building for real apps. Your whole team works on one live board: comment on the running product and it gets built, QA’d on a real device, and deployed as a pull request you review.

Get started See how it works
What it is

The structure around the AI your team already pays for.

Most tools make one person faster. sharingu makes a team effective: shared context on the real product, a check on a real device before anything counts as done, and a record of every change — building together, all the way to production.

Building solo? Same loop. You point, the agents cook, the walk verifies, you review. sharingu is the teammate that checks your work — even when it’s just you.

honest about scope · not for algorithm-heavy products (maps engines, games). Built for the 99%: buttons, forms, information — commerce, admin panels, internal tools.

How it works

How a change actually happens.

under the hood
01

Someone points at the problem

Anyone on the team comments on the exact thing that’s wrong in the running product. No terminal, no ticket, no handoff.

02

The fix gets built locally

It runs on your own machine and the AI subscriptions you already pay for, with a visible fuel budget for every run.

03

It’s checked on a real device

A QA run drives the running app on a real device and reports what it finds, with screenshots and steps to reproduce. If the walk fails, the finding loops straight back to the agent to cook again — a self-healing loop that ends only when the check passes.

04

You review and ship

Every change arrives as a pull request. A person reads it, merges it, and it goes live.

# comment · anj: “Pay button dies on slow networks”
$ building fix · agent claude-sonnet · fuel 12%
patch: retry /pay with backoff
$ walk · Pixel 8 · network throttled to 3G
walk failed · spinner never resolves
$ self-healing · cooking attempt 2
patch: add timeout + retry budget
$ walk · Pixel 8 · network throttled to 3G
checked on Pixel 8 · tap “Pay” → success
screenshot + steps to reproduce attached
✓ verified on device · PR #214 ready for review

a real run, start to finish

Evidence

See the actual problem, not a green check.

Every finding comes with the screen it happened on and the steps to hit it again. Reviewing takes seconds, because the evidence is right there — like the dev-only payment controls sharingu caught before they reached real users.

The boards

Three lenses on the same product.

Everything the agents do lands on one live board — and everything is reported. Pick a lens.

01 · atlas

The map

Every screen the agents walked, wired into the paths between them — what’s covered, and what isn’t.

45 routes · 141 paths · 89% seen

02 · vision

The design review

Each screen critiqued against your design rules — every finding with a priority and a concrete fix.

35 screens · 7 critiqued · 6 need attention

03 · report

The record

Every run, walk, finding and fix, written down. Nothing counts until it’s on the record.

351 runs · 83/83 passing · 775 captures

report atlas vision acme/checkout · live
home
catalog
cart
2
checkout
1
profile
walked path
CartScreen
2
1 · contrast · P2
3.1:1 on the “Save” label — WCAG AA needs 4.5:1.
fix → darken to --text-primary
2 · color budget · P3
Accent green covers ~14% of the screen — budget is 10%.
fix → demote decorative fills
the record · newest first351 runs
00:07run-351 · GroupInfo via group chat✓ pass
23:41run-350 · checkout · slow-network walk✕ fail✓ self-healed · attempt 2
22:39finding F-76 · cart · empty state · evidence attached→ PR #214
21:12vision · CartScreen · 2 findingsP2 · P3 · fixes queued
20:48run-349 · catalog walk✓ pass

numbers from our own live board — self-reported

Why it’s different

Together. Verified. Yours.

01

Built together

Designers, founders and engineers contribute to the same live product. Knowledge reaches the code without a game of telephone — comments become PRs.

02

Verified, not asserted

A change is done only when it’s been checked on a device — not when the AI says so. You trust what ships because you can see it working.

03

Private by default

Everything runs locally, on the subscriptions you already pay for — no API keys, no cloud required. Open source; your code stays yours.

Build together. Ship verified.

Get your team on one board and watch a change go from comment to verified PR.