Liv

Building Stuff

R&D · AI · Techpreneur · First Principler

A personal hub for the small, sharp web tools I build, the open-source libraries behind them, and the things I write.

Explore tools Writing GitHub

Tools

Small, sharp & client-side

Dither Image Tool

Retro ordered & error-diffusion dithering for images and video.

Event Camera

Live DVS / event-camera simulation from your webcam.

Copy Bin

Share text & images across devices via a short link (24h).

WhatsApp Launcher

Open a WhatsApp chat with a number you haven’t saved.

QR Code Generator

Generate QR codes, text, URL, WiFi, vCard and more.

ObjectID ⇄ Timestamp

Convert a MongoDB ObjectID to its date and back.

Husher

Hide text inside text, invisible to humans, readable by LLMs. Encode, reveal, or sanitize.

YAML ⇄ JSON

Convert between YAML and JSON, both directions.

CSS Squeezer

Squeeze CSS rules onto single lines, or minify.

Markdown Editor

Side-by-side Markdown editor with live preview.

writingmarkdown

HTML → Pug

Convert HTML to Pug/Jade in your browser.

Sheet → Timeline

Turn a Google Sheet into a timeline / gantt chart.

Writing

Articles & notes

Read the blog →

The Teammate You Delegate Coding ToMy coding agent lives in one terminal on one laptop. Shraga makes it reachable from my phone: self-hosted, bring-your-own-runtime. Here's the design and where it's honestly not done.

Recovering the Claude Code Sessions a Crash AteYour Mac reboots, three Claude Code tabs die mid-thought. `--resume` won't show them. Here's how I find the sessions the tool itself never wrote down as findable.

Ship Your PWA as a Real Native AppYou already built the web app. appwrap bundles it into an offline iOS/Android shell and hands your web code a typed bridge to 29 native capabilities, with no React Native rewrite, and it refuses to lie about which capabilities it actually has.

MCP Servers for Your Whole StackOnce your agent can call tools, the bottleneck is connectors. Here's the one four-decision pattern I reuse for every MCP server I build, and the honest state of the eight I've shipped.

Progressive Audio Streaming in the BrowserThe <audio> tag wants a whole file before it commits. Here's how MediaSource Extensions lets you play bytes the instant they arrive, plus the iOS and codec traps I hit building audio.libx.js.

From Figma to JSON to HTMLEvery "Figma to code" tool tries to skip a step and hands you magic numbers. I split it in two: a clean, inspectable JSON intermediate between Figma and anything. Here's exactly what the tree looks like.

A new Dependency Injection container for TS/JS ↗Introducing di.libx.js.

The missing piece of async programming in JS/TS ↗Introducing concurrency.libx.js.

Tools every Indie Maker needs to know ↗

Don’t Document, Automate! ↗Documentation vs automation.

Blockchain, Blockchain: Definition Needed! ↗Clarifying the terms.

We’re in the middle of a revolution: Digital Assets ↗The masterpiece behind Bitcoin.

Why Bitcoin is a digital asset, not a currency ↗

What do they really want? ↗A quest for product-market-fit.

Work

Open-source & projects

See all projects →

appwrap

Take any PWA and ship it as a real native iOS/Android app, offline-bundled, native capabilities, no rewrite. “Wrap your PWA in one prompt.”

shraga

The teammate you delegate coding to. Self-hostable, multi-user agent runner, bring your own runtime (Claude Code, Cursor), reachable from any machine.

claude-revive

Recover Claude Code sessions killed by a crash, reboot, or IDE kill, an interactive TUI picker with auto-offer on terminal restore.

edge.libx.js

Provider-agnostic, edge-compatible micro-router (itty-router wrapper) with a built-in MCP bridge, the routing core behind Bodify.

di.libx.js

Lightweight, non-intrusive dependency injection with async/deferred resolution, 3.3KB gzipped, works in Node, Bun & the browser.

libx.js

A batteries-included toolbelt of modules and helpers for Node & web apps, the flagship utility lib behind most of my projects.

mcp-firebase

Firebase Realtime Database as MCP, full read/write/query for any RTDB from Cursor, Claude Code, or any MCP host.

alt-gpt-v0

An early playground for developing ChatGPT plugins, build, test and iterate on plugins before the tooling existed.