DuckDB-Wasm can open a persistent database file in the browser's Origin Private File System (OPFS). This post shows how, and when data reaches disk.

Tiny, fast Markdown parsing and rendering for blogs and documentation - TanStack/markdown

YouTube video by Ink & Switch

React Native's internals — Fabric, Yoga, Hermes — as a universal native rendering layer. Drive the real iOS/Android stack from several UI framework: React, Vue 3, Angular and Svelte today, Soli...

MicroVM vs container: compare kernel isolation, startup time, memory overhead, and blast radius to choose the right boundary for untrusted code

Decentralized AirDrop: hand files to people with one string. Gossip announces, blobs transfers, everyone re-serves. CLI + daemon + native macOS app, built on iroh. - chad/iroh-drop

crdt · p2p · e2e encryption · clojure · go · rust · wasm

Passkey records are an interoperable format for WebAuthn credentials, similar to password hash strings. I propose a potential crypto/passkey Go API based on them.

Inside exe’s billable facts architecture.

Lexidraw is an Excalidraw fork where your drawings follow you. Share publicly with the Atmosphere or privately with iroh.

Tear-off menus, quantized semantic zoom, and spatial computational canvases show us one approach to frictionless malleable interfaces.

Hey, Niki here. This is a bit unusual. My sabbatical is coming to an end, and I am looking for a new opportunity. Full-time or contract, startup or research, remote or Berlin, individual contributor, ideally—tight team, ambitious product. I am a software engineer first and foremost with 20+ years of experience. I work on technically challenging products, foundational technology, dev tools. I’ve been doing Clojure and web recently, but I'm also very excited to explore closer-to-the-metal programming. I have an eye for design, user interfaces, UX, DX. I would love to work with a team that takes interface quality seriously. Or to work with graphics! I am pretty sure I am good at explaining stuff, including what we are building, why, why this way, why is it important, etc. For example. The overarching theme is to understand computers deeply, and then use that to make better and simpler software. If you care about that too, we might be a great match! # Recent work Instant DB is a US startup building a modern Firebase. I worked on the sync algorithm, performance, DX. A summary of my commit log. Roam Research is an OG personal knowledge manager. I worked on database optimization and a plugin system. At JetBrains, I developed a new Skia renderer for Fleet and Jetpack Compose Desktop. I’ve built many open-source libraries, including a database, a GUI toolkit, a Clojure dev environment, a React wrapper, a well-known font... More recently, Clojure+ gives you a taste of my approach to DX, and Fast EDN—to performance. I maintain several active projects — AlleKinos.de, Grumpy Website, this site. If you want to dive deeper, here’s the usual stuff: Projects / Talks / LinkedIn / GitHub # Why this post? It’s an attempt to reach beyond my immediate network. I’ve been doing Clojure for a long time, and now want to explore. If you are working on a compiler, a database, an IDE, a programming language or another technically ambitious product, touching graphics, typography, algorithms, low-level programming, and you think my experience can help, let’s talk: niki@tonsky.me.

A diskless, API-only AppView for Tangled