Thedesignistheproduct
No more handoffs. You're welcome.
import { Card, Label, Heading, Delta } from '~/ui'export function StatCard({ label, value, delta }: StatCardProps) { return ( <Card padding="4" radius="md"> <Label tone="muted">{label}</Label> <Heading level={3} variant="numeric"> {value} </Heading> {delta ? <Delta value={delta} /> : null} </Card> ) }
Your whole career, working around the same problem.
Redlines. Specs. Someone else interpreting your work, and endless meetings about why it didn't match.
A design system living in two places, drifting from the day it shipped. Stitched and synced with band-aids and hope.
Then AI arrived. Prompt it, wait, and get very good at chatting. Take the prompt away, and nothing ships.
You deserve better.
Sourceisforpeoplewhorefusetotradecraftforshortcuts.Whatyoucreateiswhatships,becausetherenevershouldhavebeenagap.
A local-first desktop app for macOS, Windows, and Linux.
Launching Fall 2026.
You're designing in production now.
Open the actual repo, and it follows what's there. Your team decides what's safe for designers to touch.
Your app's DNA.
No drift.
Tokens and global styles are written into your repo. Update and everything downstream follows.
Your components.
Not pictures of them.
Layouts, styles, variants, props. Not a mockup with a variant switcher. Exactly what your users get.
Explore as much as you want. Keep one.
Whole layouts side by side, properly worked out, not sketched. Nothing touches the codebase until you choose.
Third-party libraries, on your canvas.
Real components, real props, read from your repo's dependencies. Nothing redrawn, nothing stale.
Prototypes lie.
Your work won't.
Loops, conditions, state, events. Written into the component, running the way it will in the browser.
This is production animation.
Keyframes, easing, stagger, scroll-driven. Nothing to export, because there is nothing to convert.
Your vectors,
drawn as SVG.
Pen, anchors, Bézier curves, booleans. Saved in your repo, not exported from another app.
One file.
Two views.
Work however you want. Nothing is syncing or updating because it's not two things. Fully bidirectional.
const { data, range, setRange } = useMetrics('7d') <Card title="Activity" caption="Sessions across all projects"> <Segmented slot="action" options={ranges} value={range} onChange={setRange} /> <Stat value={data.total} delta={data.delta} format="compact" /> <BarChart series={data.series} labels={days} accent="brand" highlight="last" /> </Card>
Review it like code. Because it is.
Branch, commit, and open pull requests. See what changed by looking at it, not by reading it.
Same design. Same code. Every time.
Deterministic, not generated. No surprises on the second run.
Any framework and style library you want.
export function Overview({ range }: OverviewProps) { const [metrics, setMetrics] = useState<Metric[]>([]) const [loading, setLoading] = useState(true) useEffect(() => { let active = true fetchMetrics(range).then((data) => { if (!active) return setMetrics(data) setLoading(false) }) return () => { active = false } }, [range]) return ( <Show when={!loading} fallback={<Skeleton rows={3} />}> <Grid columns={3} gap="4"> {metrics.map((m) => ( <StatCard key={m.id} label={m.label} value={m.value} delta={m.delta} /> ))} </Grid> </Show> ) }
Tell Source what you want.
The AI reads your request and picks the command. Source runs it. Any model you want, including local.
Built by
one stubborn
son of a bitch.
I've been a design engineer for fifteen years. I designed and coded from the start, then kept doing it so my work wouldn't fall apart.
You shouldn't need to master both to see your work all the way through. Now you don't.
It's early, which means when you reach out, you get me.
Early access is limited.
I'm onboarding people myself. The first 25 qualified beta testers keep it free for life.