aaron levin

sep 2026

an agent that drives a mac toward a goal you type, without sending screenshots to a big model. it got 300k views on x and 1.2k stars on github.

how it works

1. screen
2. ocr + accessibility tree
3. typesafe classifier
4. click or type

view code ↗

oct 2026

a claude code plugin that shows how long a task has left, and learns from your past tasks to estimate better.

how it works

1. first edit opens a task
2. forked-model estimate
3. status line countdown
4. git push closes it

view code ↗

oct 2026

short italian lessons for spanish speakers, with a review deck and a phrasebook for the trip. i made it the day before i flew to italy.

how it works

1. answer a card
2. local outbox
3. retried, idempotent sync
4. leitner box in postgres

try it ↗view code ↗

oct 2026

a quick reference to the big ideas of 61 philosophers, from thales to foucault.

how it works

1. a wall of faces
2. a placard of facts
3. a 14-statement quiz
4. your closest five

try it ↗view code ↗

oct 2026

a playlist auction for my taco bell 50k, where $5 put a song in my ears. it raised $200 for achilles international.

how it works

1. venmo payment
2. receipt email
3. webhook + dkim check
4. spotify playlist

try it ↗

sep 2026

a party game where the tv plays a song and everyone races to name it from their phone. my friends and i actually play it.

how it works

1. a guess from a phone
2. pure reducer
3. redis compare-and-set
4. a view per player

try it ↗view code ↗

may 2026

a react component on npm that reads any text aloud and lights up each word as it is spoken.

how it works

1. text
2. tts-1 audio
3. whisper timestamps
4. words light up

try it ↗view code ↗

sep 2026

a couch co-op cooking game where the tv is the kitchen and every phone is a controller.

how it works

1. phone gamepad
2. websocket
3. 30 hz simulation
4. the kitchen on the tv

try it ↗view code ↗

sep 2026

a party game where the tv plays a song and everyone races to name it from their phone. my friends and i actually play it.

how it works

1. a guess from a phone
2. pure reducer
3. redis compare-and-set
4. a view per player

try it ↗view code ↗

jun 2026

a daily game where you get five guesses at a real home's price.

how it works

1. one home a day
2. five price guesses
3. higher or lower
4. next-day leaderboard

try it ↗

sep 2026

a couch co-op cooking game where the tv is the kitchen and every phone is a controller.

how it works

1. phone gamepad
2. websocket
3. 30 hz simulation
4. the kitchen on the tv

try it ↗view code ↗

jan 2026

a web app that helps run in-person games of avalon, the hidden-role party game.

how it works

1. deal hidden roles
2. run each quest
3. take notes
4. learn strategy

try it ↗

oct 2026

short italian lessons for spanish speakers, with a review deck and a phrasebook for the trip. i made it the day before i flew to italy.

how it works

1. answer a card
2. local outbox
3. retried, idempotent sync
4. leitner box in postgres

try it ↗view code ↗

oct 2026

a quick reference to the big ideas of 61 philosophers, from thales to foucault.

how it works

1. a wall of faces
2. a placard of facts
3. a 14-statement quiz
4. your closest five

try it ↗view code ↗

oct 2026

timed drills that teach you to find and name every square on a chessboard.

how it works

1. a square to find
2. click or name it
3. timed to 0.01s
4. misses come back

view code ↗

aug 2026

an interactive course i built to teach myself mechanistic interpretability, from linear algebra to circuit tracing.

how it works

1. linear algebra
2. a widget per idea
3. in-browser toy model
4. circuit tracing

try it ↗view code ↗

aug 2026

timed arithmetic drills that walk you through the trick whenever you miss one.

how it works

1. a timed problem
2. a miss
3. a step-by-step walkthrough
4. fumbles come back

view code ↗

jul 2026

a speed-reading trainer that follows your eyes through the webcam.

how it works

1. webcam
2. face landmarks
3. calibrated gaze
4. the next word

view code ↗

sep 2026

an agent that drives a mac toward a goal you type, without sending screenshots to a big model. it got 300k views on x and 1.2k stars on github.

how it works

1. screen
2. ocr + accessibility tree
3. typesafe classifier
4. click or type

view code ↗

oct 2026

a meme maker that asks typesafe's jev model a question about your photos and prints its real confidence on each one.

how it works

1. photos + a question
2. jev scores each photo
3. satori draws the meme
4. share to x

view code ↗

aug 2026

a cli that draws every claude code and codex session on your machine onto an hourly calendar.

how it works

1. local session transcripts
2. blocks by the hour
3. calendar on localhost
4. parallelism multiplier

view code ↗

mar 2026

a march madness bracket challenge where ai agents fill out the brackets.

how it works

1. agent installs the skill
2. fills a 64-team bracket
3. picks validated
4. live leaderboard

try it ↗view code ↗

may 2026

a react component on npm that reads any text aloud and lights up each word as it is spoken.

how it works

1. text
2. tts-1 audio
3. whisper timestamps
4. words light up

try it ↗view code ↗

oct 2026

a claude code plugin that shows how long a task has left, and learns from your past tasks to estimate better.

how it works

1. first edit opens a task
2. forked-model estimate
3. status line countdown
4. git push closes it

view code ↗

aug 2026

a cli that draws every claude code and codex session on your machine onto an hourly calendar.

how it works

1. local session transcripts
2. blocks by the hour
3. calendar on localhost
4. parallelism multiplier

view code ↗

oct 2026

a meme maker that asks typesafe's jev model a question about your photos and prints its real confidence on each one.

how it works

1. photos + a question
2. jev scores each photo
3. satori draws the meme
4. share to x

view code ↗

oct 2026

a playlist auction for my taco bell 50k, where $5 put a song in my ears. it raised $200 for achilles international.

how it works

1. venmo payment
2. receipt email
3. webhook + dkim check
4. spotify playlist

try it ↗

mar 2026

an app for planning a potluck with friends, allergies and shopping lists included.

how it works

1. share a room link
2. friends claim dishes
3. ai suggests recipes
4. one shopping list

try it ↗

jul 2026

a digital guide for my airbnb guests, with check-in steps and local picks. my place has 5 stars from over 30 guests, in the top 5% of airbnbs in denver.

how it works

1. a personal guest link
2. arrival, with photos
3. codes and wi-fi
4. local picks

try it ↗

jan 2022

a domain checker that tells you which domains are free without leaving imessage.

how it works

1. a link in imessage
2. rdap registry lookup
3. answer in the preview

try it ↗

fall 2018

a cornhole board that keeps score by itself.

how it works

1. step on the footplate
2. bag in the hole
3. camera counts the rest
4. net score lights up

view code ↗

fall 2018

a 16-bit processor built from scratch in verilog, with its own instruction set.

how it works

1. single-cycle cpu
2. five-stage pipeline
3. forwarding + hazard detection
4. two-way cache

view code ↗

fall 2017

an ios app that helps roommates track chores, split expenses and plan events.

how it works

1. your house's group
2. chores on the record
3. split expenses
4. shared events

view code ↗

spring 2017

your favorite dancing game, rebuilt on a microcontroller board.

how it works

1. arrows rise to targets
2. press the matching button
3. misses drain the leds
4. high score kept

view code ↗

summer 2016

a neural network written from scratch in java that reads handwritten digits.

how it works

1. a 16x16 pixel digit
2. one hidden layer
3. backprop training
4. a digit, 0–9

view code ↗