Your code
Every app is a real Git repository: clone it, push it to your own GitHub, read every line.
For people who are done waiting
Ship the feature yourself. From the toilet, if you must.
Describe what you need. An AI developer builds it in a live preview while you watch. Point at what's wrong, say it, see it fixed. Then publish it and take the credit.
A closed bathroom door. A phone. "Add a discount field to invoices." A flush. It's live.
Project managers
Your deadline doesn't care about the sprint.
- "It's in the backlog": the answer to every question.
- Two weeks of sprint for one button and a dropdown.
- Status meetings about why the status hasn't changed.
Type what you need. Watch it get built in a live preview of your app. Accept it, publish it, and close the ticket before anyone opens it.
Your Gantt chart has never looked this smug.
Standup. "Any blockers?" The project manager turns the laptop around: the feature is already live.
Product owners
Skip the waiting room between idea and done.
- User story, refinement, estimate, sprint, QA, "next release".
- Acceptance criteria nobody read.
- Explaining the same screen for the third time.
Point at anything in the preview and say what should change. See it rebuilt in seconds. Every step is kept, so you can go back to any version with one click.
Acceptance criteria: you accepted it.
Refinement meeting, minute 47. Under the table, the product owner quietly ships the story.
Developers
Never build another admin screen at 4 pm on a Friday.
- "Just a small change". It never is.
- CRUD screen number 312.
- Being the bottleneck for a label that says "Total".
Let the AI and your project manager handle the boring parts, on a stack you'd pick yourself: Go, PostgreSQL, plain HTML, no build step. Every change is a real commit in a real repository. Read the diff, push it to your own GitHub, or go to lunch.
They'll still call you for the hard stuff. Just less often.
Friday, 15:58. A chat message: "quick one". The developer smiles and forwards it to Yesian.
Founders and owners
Your first version shouldn't cost a funding round.
- Agencies quoting months for "phase one".
- Freelancers who vanish after the deposit.
- No-code tools you outgrow by Tuesday.
Describe your business and get a real app: users, roles, invoices, a public website, your own domain. The code is yours, the servers are in the EU, and backups run every night.
Pitch on Monday. Live on Tuesday.
Investor: "Do you have a prototype?" Founder: "It's in production."
How it works
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Describe it
Write what you need in plain words, the way you'd tell a developer. No specs, no tickets.
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Watch it build
An AI developer builds it in a live preview. Point at anything on the screen and say what to change.
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Accept it
Happy? Accept it and it becomes a version. Not happy? Go back to any earlier step.
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Publish it
One click and it's live on your own domain, with HTTPS and backups every night.
Not a toy. Not a mock-up.
Your servers, in the EU
Each app has its own database, HTTPS, and encrypted backups off the server every night.
A stack developers respect
Go, PostgreSQL and plain HTML. No build step, no black box, nothing your developer can't read.
Made for teams
A task board the AI works through, the history of every change, and one person at the wheel at a time.
Questions you were going to ask
Will this replace developers?
No. It replaces waiting for them. Developers get the interesting problems back.
Is the toilet thing serious?
Yesian works on a phone. Where you use it is between you and your plumber.
What can it build?
Business apps and websites: CRMs, invoicing, bookings, client portals, internal tools, company sites.
Who owns what gets built?
You do. The code lives in your repository and the data in your app's own database.
Can my developer still work on it?
Yes. It's ordinary code in Git: they can review every change, or make their own.
Say yes to the feature.
We're letting teams in a few at a time. Tell us what you'd build first.