tools that make thoughts go wherever they should be, to produce what they should, for whatever purpose.

Transportation planning and traffic simulation software for creating cities friendlier to walking, biking, and public transit

An Obsidian plugin for saving and restoring the positions of nodes on the global graph view

A book to support the INFO 200 Intellectual Foundations of Information course.

A skilled virtual assistant for Obsidian.

A visual canvas for Obsidian notes

A deployable web platform for collaborative conversation, ideation & sense-making. Use it for free at

a 2D rigid body physics engine for the web ▲● ■

explore oscillations in p5.js and beyond!

Volumetric Particle Flow - http://david.li/flow

cli tool and a library for working with time tracking data

1-bit paint app

JavaScript diagramming library for interactive flowcharts, org charts, design tools, planning tools, visual languages.

The minimal javascript library to create flowcharts ✨

The original wiki rewritten as a single page application

A curated list of awesome Public Zettelkastens 🗄️ / Second Brains 🧠 / Digital Gardens 🌱

Your open source external brain

TreeSheets : Free Form Data Organizer (see strlen.com/treesheets)

Free variable writing fonts from iA

A web browser that lets you save and organise the pages you visit.

Snapshots a web page to get it as a static, self-contained HTML document.

general area

Christian's BA Thesis, started in Evernote, now exported as TXT

Zettel Network Visualizer

Zettelkasten-Developer-Builds

Visual experiments exploring space colonization as a 2D morphogenesis tool.

A playable disease simulator written in React