X/Twitter
LinkedInSurveyor
describe the ride you want and the map draws it.
Next.jsMapLibre
Krzysztof Duda
hello@krzysztof.studioi’m a product engineer. i take rough ideas and ship them end to end, from the first interaction to the full-stack system behind it.
currently building Indeks and tools for working with AI agents.
Projects and Work
2026 · Swift · Claude CodeQuorum
2026 · Rubycanonical_log
2023 · TypeScriptTranslate Checker Github Action
01 / 16
IMAX Canvas × Jev by TypeSafe AI
describe a look in one line and the IMAX Canvas console restyles itself. there’s no LLM and no generated CSS, because TypeSafe AI’s Jev System One only picks from thirteen closed choices and then scores fifteen dials against them, so “a bit warmer” moves warmth and nothing else, for about $0.0005 a directive.
TypeScriptWebGL2Jev / TypeSafe AI
open ↗
Indeks × Jev by TypeSafe AI
write one sentence about a collection and Indeks files the whole library into it while you watch. TypeSafe AI’s Jev System One answers every bookmark with a probability instead of a sentence, so above 0.85 it files, below 0.35 it drops, and only the middle comes back to you as a question. 1,132 bookmarks in under 40 seconds.
Ruby on RailsNext.jsJev / TypeSafe AI
open ↗IMAX Canvas
accessible Web Components dressed up as a late-1990s cinema projector console. plain TypeScript custom elements, no framework, painted by a WebGL2 amber phosphor shader: bloom, scanlines, curvature, grain, flicker.
open ↗
Quorum
ask one question and a few research agents each take a different angle, in parallel, read-only and blind to each other. a judge reconciles their answers into one cited note, and notes build on each other across runs. native macOS app on top of the Claude Code CLI, with a spend cap and 319 tests.
SwiftClaude Code
open ↗
domometr.pl
paste an Otodom listing and Domometr tells you whether the price is fair, with a report and a chat that answers in maps, tables and charts. the model never writes UI: it picks from 28 typed components through json-render, streamed over SSE from Rails and RubyLLM.
Ruby on RailsNext.jsRubyLLM
open ↗canonical_log
Ruby gem for the canonical log line pattern. it collects context over the whole request and writes one structured JSON line at the end, instead of log calls scattered everywhere.
Ruby
open ↗Visualizing bookmark clusters on a globe
bookmarks placed on a 3D globe by meaning. each one gets a vector embedding, an LLM called from Ruby turns similarity into coordinates, and related links end up next to each other.
Indeks
i had 2,000 bookmarks and had read maybe 50, so i built a place where they sort themselves. save an article in one click, find it with search, and let embeddings group and tag everything, no folders.
open ↗Alien HUD
retro-futuristic HUD with a CRT shader, straight out of Alien. built on nptacek’s hud-crt.
open ↗MentorCenter.io
co-created a platform for learning from and connecting with real people.
DbValidator
Ruby gem that finds records in a Rails database that no longer pass their own model validations. 20 stars and 3,000+ downloads on RubyGems.
open ↗Generative UI E-commerce Chat
proof of concept for a shop chat that answers with UI components instead of text. built on the Vercel AI SDK.
open ↗Translate Checker Github Action
GitHub Action that finds missing translations.
TypeScript
open ↗
Yabai Raycast extension
brings the Yabai window manager into Raycast.
TypeScript
open ↗Distortion
a distortion effect experiment in Three.js and WebGL.
open ↗scroll or swipescroll, drag or use the arrow keys