This page lists some of my personal, work, and school projects. You can find the source code for (almost) all of these projects and more on my personal GitHub account and the Radian LLC GitHub organization.

All of my open-source projects receive continued maintenance when needed, except where otherwise noted. The dates below, however, show when most of the major development happened.

Note that most of these projects are owned and operated by Radian LLC, who will be the liable party in the case of legal disputes. A subset are my personal work instead. When in doubt, check the license notice in the relevant GitHub repository. Obviously, work projects are the property and liability of the relevant employer(s), and the same applies to some school projects.

Currently working on

  • regex-accountant: Aggregating personal finance record-keeper based on total control of transaction reconciliation and categorization via interactive rules engine and standard interface for ingesting data from reverse engineered APIs.

Emacs projects

Reverse engineering and web automation

Web apps and services, browser extensions

  • Tidier (Spring 2019): Small application to auto-close abandoned GitHub issues by label and activity.
  • Hyperschedule (Fall 2017 – Fall 2019; source): Fast and powerful course scheduler for the Claremont Colleges. Current maintainer: Kye Shi.
  • GitHub Email Backlog (Summer 2020): Simple Chrome extension which abuses the GitHub notifications API to automatically update my profile status with an estimate of how long you will wait for a response when you report an issue. This is deprecated since I have gotten my personal life in order and can provide a more reliable base response time.
  • Python in a Box (Summer 2021; source): Interactive online Python REPL in 30 lines of JavaScript.

Technical utilities

  • smarter-playlist (Fall 2016): Clojure application to generate iTunes playlists combining variety, cohesiveness, and novelty.
  • wdx (Fall 2017): Simpler and more robust alternative to wd, written in Python.
  • mood-tracker (Spring 2017): Small AppleScript utility to record data about personal mood at regular intervals. This project was abandoned when I realized that trying to systematize everything in my life was actually not making me happier.
  • Madeline (Summer 2018): Novel approach to directory syncing, used to maintain complementary mirroring of two filesystem trees via SSH. This idea, while interesting, never served my use case terribly well in the end, and the implementation is terrible. I now use a smaller and better-targeted personal script to serve a similar function.
  • pass-ln (Fall 2022): Pass extension for creating symbolic links.
  • Sleeping Beauty (Winter 2022): Network utility that puts a stateless TCP web server to sleep when not receiving traffic, to minimize resource utilization.

Research and education


  • TerrariaClone (Spring 2011 – Spring 2013; HackerNews thread): My first major project, a clone of Terraria, preserved as an example of how terrible code can be if you don’t pay attention to its quality.
  • Mother’s Day (Summer 2013): Small Java applet that I made for Mother’s Day.
  • Watching Paint Dry: The Game (Summer 2013): Small Java applet where you can paint things with the mouse, and then watch the paint dry. Yes, really. For Father’s Day.
  • tetris-processing (Winter 2013): Simple clone of Tetris from high school, this one in Processing and featuring music.
  • funwithframes (Winter 2013): Simple game in Processing where you try to dodge certain squares while being distracted by other squares.
  • 2048 (Spring – Summer 2014): Simple clone of the game 2048, implemented in Java with graphical and command-line interfaces as well as a few auto-solving algorithms.
  • tetris-python (Summer 2014): Slightly more advanced clone of Tetris from high school, this one in Python and featuring pentominoes and other nonstandard pieces.
  • Christmas Rogue (Winter 2014): Christmas present for my father. Roguelike game inspired by Brogue and implemented in Java. Likely the most over-the-top Christmas present I will ever give.

Mobile apps

  • Chrono Count (Summer 2013 – Spring 2014): iOS app to manage countdowns and countups under arbitrarily complex schedules, previously available from the iOS App Store.
  • Gravity (Winter 2013): Christmas present for my father. iOS app that simulates many-body Newtonian gravity.


Pure miscellany

Work projects

(See also my resume.)

  • Ecofasten and Alpine Snowboards pricing calculators (Summer 2015, ThinkTopic; proprietary): Frontend and backend work on existing Clojure/ClojureScript/Datomic web applications for generating price quotes for roof-mounted solar panels and alpine snowboards. Teammates: Charles Gruenwald, Keren Megory-Cohen.
  • think.recommend (Winter 2015 – Summer 2016, ThinkTopic; proprietary): Library for testing and benchmarking collaborative filtering algorithms.
  • cortex.optimise (Spring – Summer 2016, ThinkTopic): General-purpose library for analyzing, visualizing, and comparing gradient descent algorithms.
  • think.quality (Summer – Winter 2016, ThinkTopic; proprietary): Tool for running company-wide Clojure code quality audits and dashboard to visualize results.
  • CMS Changeset Dashboard (Summer 2017, Quantcast; proprietary): Full-stack administrator dashboard for an internal team to manage an internal database used by an internal webapp used by another internal team to manage another internal database. You can imagine the customer-facing impact.
  • lazy-map (Fall 2017, ThinkTopic): Lazy map implementation for Clojure.
  • UPM (Summer 2019, Universal package-management interface for Python, Node.js, Ruby, and Emacs Lisp.

School projects

Abandoned projects (will never be finished)

  • space-grid (Spring 2012): An attempt at a clone of the Flash game Star Relic in Python. It didn’t get very far, because I didn’t actually know any game programming.
  • CAS (Summer 2014): Failed attempt to create a computer algebra system, like Mathematica.
  • dfa (Spring 2016): A quickly-abandoned attempt to use Clojure to generate DFAs using a genetic algorithm.
  • MazeGen Neue (Summer 2016): An attempt to rewrite MazeGen to be slightly less of a mess. Unfortunately, I went much too far in the opposite direction and created some Enterprise FizzBuzz, and the project was abandoned.
  • minimal-webapp (Summer 2016): Noble effort to create a ClojureScript webapp that did not require a huge number of incomprehensible build system configuration files that nobody quite understood. It almost worked.
  • acc (Summer 2017 – Summer 2018): Command-line accounting tool with first-class support for reconciling multiple ledgers interactively. This project was abandoned when it was pointed out to me by a friend that I didn’t actually have to track every single one of my financial transactions. I used a manual spreadsheet (reviewed quarterly) for budgeting and cash flow analysis for some time, and am considering migrating to Lunch Money moving forward.
  • Dotman (Summer 2017 – Summer 2018): A very silly idea I had to write a unified package manager (with Ruby DSL) for my entire system configuration (e.g. software installation, configuration, dotfiles, misc scripts, etc.). This was abandoned when I realized I could just manually write down what I did to configure my laptop. If you actually want declarative system configuration, you should probably be using Nix.
  • etunes (Fall 2017 – Summer 2018): Declarative, version-controlled music library manager for Emacs. Attempt #1 at a personal music library manager. Replaced by fstunes.
  • pset (Fall 2017): Configurable templating system for university problem sets typeset in LaTeX. Will never be finished because I am no longer a college student.
  • fstunes (Winter 2018): Extremely minimal music library manager leveraging UNIX filesystem abstractions. Attempt #2 at a personal music library manager. Replaced by µTunes.
  • µTunes (Spring – Winter 2019): Aggressively minimal command-line music player and library manager following the UNIX philosophy, with Emacs interface. Attempt #3 at a personal music library manager. Was supposed to be replaced by Pyrelight but is still in current use despite being considered deprecated.
  • Tabcrush (Summer 2019): High-performance power tool for editing large-scale tabular data in Emacs, intended for use with µTunes. Deprecated alongside µTunes.
  • Mercury (Summer – Fall 2019): Emacs interface to Facebook Messenger, Signal, and SMS (via Google Hangouts). This has been superseded by Matrix for me.
  • Pyrelight (Spring – Summer 2020): More sophisticated command-line music player and library manager. Attempt #4 at a personal music library manager. Will be replaced by Shallan.

On-hiatus projects (might be finished someday)

  • Ishikk (Summer 2018): Read-write Google Calendar interface for Emacs, with graphical week view. If finished, this would be repurposed to work with Fastmail. However, the 2023 package calfw-blocks might supersede the project.
  • Dumbparens (Spring 2020): Sane delimiter-matching package for Emacs with primitives based on syntax tables, replacing Smartparens, Paredit, and Electric Pair mode. This is still relevant but bandwidth has not been available to drive the project to completion.
  • Riju (Summer 2020 – Winter 2021; source): Extremely fast online playground for every programming language. Currently working on port to Kubernetes to improve maintainability.
  • Shallan (Spring – Summer 2021; not yet published): Personal music library player combining the user-friendly interface and cross-device synchronization of YouTube Music with the flexibility and ownership of a self-hosted open-source solution. Attempt #5 at a personal music library manager.
  • Hypercast (Winter 2022): Free, no-hassle watch parties on every streaming platform. Implemented as Chrome and Firefox extension.
  • dontbeevilmirror (Spring 2023): Anonymizing proxy CDN for Android apps pulled from the Google Play Store