Prompt to Premium.
A journaling
daemon
for your $HOME.
halcyond runs locally. Writes land in a plaintext append-only log. Signed, tarred, optionally piped to stdout. Zero network by default.
$ halcyon --since=today [08:14] long walk, fog lifted around 9. [12:02] draft essay stalled at §3. [19:47] reread what i wrote — fine. $ halcyon commit --sign → 3 entries sealed (ed25519) → sha256: 4a7f…bc12
STOP
PERFORMING.
WRITE.
One sentence a day. No streaks. No metrics. No audience. Halcyon is a journal that refuses to become a product.
A quiet place to put the day.
Halcyon is a journal for long mornings and slower evenings — one sentence a day, no streaks, no metrics, no performance.
I've ever kept."
Your design taste, codified.
A/B pick between designs. Over time, your palette, typography, density, and motion preferences emerge into a Taste Card — uniquely yours, shareable, embeddable. Compounds with every pick.
@mia's taste
Taste Card@alex's taste
Taste Card@jun's taste
Taste Card@casey's taste
Taste Card@sage's taste
Taste Card@luca's taste
Taste Card@nova's taste
Taste Card@riley's taste
Taste Card@jamie's taste
Taste Card@nora's taste
Taste Card@finn's taste
Taste Card@ava's taste
Taste Card@remi's taste
Taste Card@theo's taste
Taste Card@zoe's taste
Taste Card@kai's taste
Taste Card@juno's taste
Taste Card@ellis's taste
Taste Card@mia's taste
Taste Card@alex's taste
Taste Card@jun's taste
Taste Card@casey's taste
Taste Card@sage's taste
Taste Card@luca's taste
Taste Card@nova's taste
Taste Card@riley's taste
Taste Card@jamie's taste
Taste Card@nora's taste
Taste Card@finn's taste
Taste Card@ava's taste
Taste Card@remi's taste
Taste Card@theo's taste
Taste Card@zoe's taste
Taste Card@kai's taste
Taste Card@juno's taste
Taste Card@ellis's taste
Taste CardDescribe your taste in a sentence.
References, vibes, brands, colors you reach for. Foundry reads it and proposes three directions — pick the one that feels right.
Websites. Apps. Brands.
Describe a phone app or a website in a sentence. Foundry renders it live — on your phone via QR, in a real browser — then lets you iterate section by section. Curated typography, tight tracking, opinionated restraint. Nothing generic.
Zero canvas.
Zero decisions. Real output.
Pick a target.
Phone app or website. Foundry routes the right design skill — iOS primitives for mobile, editorial web patterns for sites. The UI adapts; the taste is the same.
Describe in a sentence.
"A meditation app for busy parents." "A launch page for a climate research lab." Foundry proposes a design system and the first screen or section in one pass.
Iterate, then export.
Approve each screen, remix with a sentence, rate with a thumb. Phone projects ship as Expo-ready React Native. Websites ship as React + Tailwind you can drop into a repo.
Restraint is the feature.
Designs that don't scream AI.
Geist, Satoshi, Cabinet Grotesk. Tight negative tracking across the scale. One accent color, max 80% saturation. A ban list traced from Linear, Aegis, Ando — no Inter, no purple glow, no John Doe, no 99.9%.
Real devices, real code.
Phone apps render in a 393×852 iPhone frame and stream to your pocket via QR. Websites render full-viewport with React, Tailwind, Geist, Framer Motion, and R3F bundled live via esbuild. No canvas stand-ins.
The design soul travels.
The design system you approve locks once and compiles to every target. React Native + Expo today, premium React + Tailwind websites today. Figma export and SwiftUI on the roadmap. Same soul, different surfaces.
Phone app, or website. Pick the target, the taste follows.
Phone app
- iPhone 16 viewport (393×852), Dynamic Island safe area, tab-bar spacing
- Glass, solid, outlined, elevated surface styles — Claude picks one and locks it
- Expo-ready React Native + TypeScript on export
- Live QR stream to Expo Go
Website
- Full-viewport responsive React + Tailwind
- Aegis / Linear / Ando reference bar — hero split layouts, real product mockups as assets
- Framer Motion, Geist via Google Fonts, lucide-react icons, three + @react-three/fiber bundled
- Drop into any Next.js or Vite repo