Soffi for engineers
Infinite staging environments on your real app, no local dev
What changes for you
| Today | With Soffi |
|---|---|
| You set up local dev and become their IT | They click a button. Nothing to support |
| Nobody can run the whole product locally | It runs from your repo, backend included |
| Generated code reads like a stranger's | A patch on your code, in your patterns |
| A PR arrives and you can't tell what it does | Generated against your components, with visual diffs |
| Reviewing means pulling the branch | One button opens it as a running app |
| Screenshots get scripted into PRs by hand | Visual diffs on every commit |
| Three tools for previews, components, regression | One, on your own repo |
| Your preview pipeline is glue you maintain | Nothing to build, nothing to keep alive |
“It's a 30-second change that costs two hours of their focus. Is it worth interrupting somebody's sprint work, asking them to stash their changes, create a branch, create a PR, go through all of it just to fix this in the UI?”
“How do I know what we're shipping is good, and that the product isn't quietly degrading every day?”
What engineers do with Soffi
- 01
Review a pull request without pulling the branch
Soffi comments on every PR with a button that opens it as a running version of your app. Click through it, comment on the element, or make the change yourself and push into the branch.
- 02
Get front-end requests off your queue without giving up the merge
Product and design open their own PRs, generated against your components and tokens, with lint and typechecks already run. It's from your existing code, so it reads like your team wrote it.
- 03
Do your own front-end work faster
Click an element, adjust it, inspect the CSS, and push. Visual diffs on every commit sit next to the code review, so you see the rendered change and the patch together.
- 04
Enforce your standards on every change
Soffi builds from your components and tokens by default. Edit the context files to prefer one pattern, deprecate what you're moving off, and it holds for every change from anyone.
What you get
PR previews
Every PR opens as a running app. Configurable per repo.
Visual diffs
Before-and-after images on every commit, attached to the PR.
Pre-PR checks
Lint with auto-fix, typecheck and design-system compliance on every patch.
Design system from code
Tokens, components and variants from your repo. Deprecate one and it stops being emitted.
Hosted workspaces
Built from your repo with seed data, services and env vars auto-discovered. Nothing to maintain.
Runtime context
Logs, JS errors and network in scope. The agent sees your app running, not just the files.
Any stack, any host
Docker Compose, Kubernetes, SSR, monorepos. No migration, no hosting dependency.
Works with what you already use
- GitHub
- Install once, scope the repos. Everything exits as a pull request.
- Your CI and branch protections
- Unchanged, and still the gate.
- Cursor, Claude Code and Codex
- Same branch, same PR.
- Your stack
- Docker Compose, Kubernetes, SSR, Vite, Nx, multiple APIs behind a proxy.
- Your auth provider
- Auth0, Descope, email and password.
- Linear and Jira
- Build from a ticket, push the PR.
- Symbol search
- Anything by name, docstring, or signature.
Common questions
01Does Soffi push code by itself?
No. It works in an isolated instance in our cloud with no access to production data, and nothing leaves it unless reviewed.
Your CI, your branch protections, your approvers. A human merges.
02What stops this writing slop into our codebase?
It's generated against your real components, patterns and tokens, and builds with what exists before making anything new. Lint, typechecks and a design-system compliance check run before the PR exists.
03How much engineering time does this cost, up front and ongoing?
One engineer connects the repo once, with us alongside for that first install. After that, very little: each change builds and tears down its own environment.
04Will it work on our stack?
We run your app wherever it already runs, so there's no migration and no hosting to move to. JavaScript and TypeScript front ends, backend logic, monorepos, Docker Compose, Kubernetes, SSR.
Legacy code and API-only products aren't a great fit, and we'll tell you early rather than waste your time.
05Isn't this one more environment for us to maintain?
There's no long-lived environment to babysit. Each change builds its own instance from your repo and tears it down when the PR closes, and none of it runs on your infrastructure or enters your on-call rotation.
See it running on your own app
Start in a free sandbox on a demo app, or connect your repo and we'll handle the rest: the infrastructure, the setup, and your security review.