Scheme

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valid and invalid email addresses with thumbs-up and thumbs-down icons

validate-email-address

Validate email addresses in Scheme.

Schmeep logo for Scheme on Android

Schmeep: Scheme on Android

Write apps on Android using Chibi Scheme.

cover page of MIT AI Memo 349, SCHEME: An Interpreter for Extended Lambda Calculus

papers

Collect academic papers and other documents using a command-line tool.

weather dashboard with one-week forecast on an M5Paper e-ink display in a red stand

Weather Dashboard displayed on M5Paper

Weather Dashboard

Weather dashboard on a battery-powered e-ink screen.

Laconic watch face on a Bangle.js 2 smartwatch

Laconic watch face for Bangle.js 2

Laconic

My JavaScript code runs on my wrist.

the Stomachion puzzle rendered as colorful geometric shapes

The Stomachion, rendered using NanoVG-REPL

NanoVG-REPL

It's easy to do standard 2D graphics from Scheme, even without a foreign function interface.

ICFP 2022 logo: a dragon silhouette forming a lambda

ICFP 2022 logo

Scheme Workshop 2022

I had the honor to be co-chair, with Andy Keep, of this year's Scheme Workshop, held as part of ICFP 2022 in Ljubljana, Slovenia.

The talks are now on YouTube.

silhouette of a monitor in portrait orientation

Vertical Monitor

Vertical monitors are great for coding.
left side of a keyboard with Ctrl-Alt-Shift-W highlighted

Window Chord

No mouse. No workspaces. Just the window you want, where you want it, instantly.
Scheme Read-Eval-Print Loop prompt with a cursor

REPL as a Service

Tips for running a Read-Eval-Print Loop as a service on Linux.
ICFP 2019 Berlin logo: an Ampelmännchen walking figure

ICFP 2019 logo, based on the Ampelmännchen

Scheme Workshop 2019

I had a great time in Berlin at this year'sScheme Workshop, part of ICFP 2019.

The talks are now on YouTube.

flowers and pond in Monet's garden at Giverny

Monet's garden at Giverny

RnRS Gardening

Programming language communities are like gardens. Often, we get to grow something new and beautiful. But sometimes, we have to collect our tools and do grunt work just to keep things alive.

Bay Area Lisp & Scheme Users Group logo with lambda and Golden Gate bridge

Lisp in Person

The Bay Area Lisp and Scheme Users Group meets a few times every year to discuss many topics from a Lisp and Scheme point of view.

To date, we have thirty-two talks on our YouTube playlist.

SRFI logo: SRFI in a digital-display font on a green surfboard

Growing Schemes

I gave a talk on SRFI, the Scheme Requests for Implementation, at the Scheme Workshop 2018.