A token-conscious approach using type-safe classname utilities instead of component wrappers for layout primitives.
Components for behavior. Classnames for styling.
Matthew Gerstman matthew-gerstman
matthew-gerstman
/ gist:08c657c49a72a6bb61c1f31757e7f93e
Created
December 3, 2025 23:41
Artifact Preview Generation Flakiness Analysis
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| # Artifact Preview Generation Flakiness Analysis | |
| ## Root Cause Analysis | |
| The preview generation system has multiple failure points causing previews to not display: | |
| ### 1. Race Condition (Primary Issue) | |
| The flow is: | |
| 1. Create artifact → Send `artifact:created` SSE (NO preview URL) | |
| 2. Generate preview async → Upload to S3 → Update artifact metadata |
matthew-gerstman
/ design-system-v2-classname-helpers.md
Last active
December 1, 2025 18:23
Design System v2: Classname Helpers - Complete Implementation Plan
matthew-gerstman
/ App.js
Created
September 22, 2019 23:02
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| import React from 'react'; | |
| import './App.css'; | |
| class App extends React.Component { | |
| state = {anonymousFunctions: true, count: 100}; | |
| updateCount = e => { | |
| this.setState({count: e.target.value}); | |
| }; | |
| updateAnonymous = () => { | |
| this.setState({anonymousFunctions: !this.state.anonymousFunctions}); |
matthew-gerstman
/ focus-watcher.js
Created
August 8, 2019 14:06
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| let lastFocused = []; | |
| setInterval(() => { | |
| const focused = document.querySelector(':focus'); | |
| if (focused && lastFocused[lastFocused.length - 1] != focused) { | |
| lastFocused.push(focused); | |
| } | |
| }, 100) |
matthew-gerstman
/ tierney.js
Last active
July 20, 2019 18:22
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| function handleAsManyLicenseCases(data, licenseID) { | |
| const returnableLicense = { | |
| allLicenses: [], | |
| licenseStatement: licenseID, | |
| spdx: { | |
| osi: false, | |
| fsf: false, | |
| fsfAndOsi: false, | |
| deprecated: false, | |
| }, |
matthew-gerstman
/ filter.js
Created
March 18, 2019 22:18
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| function filter(list, predicate) { | |
| return list.reduce((acc, item) => { | |
| if (predicate(item)) { | |
| acc.push(item); | |
| } | |
| return acc; | |
| }, []); | |
| } |
matthew-gerstman
/ map.js
Created
March 18, 2019 22:18
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| function map(list, func) { | |
| return list.reduce((acc, item) => { | |
| acc.push(func(item)); | |
| return acc; | |
| }, []); | |
| } |
matthew-gerstman
/ flatMap-result.js
Created
March 18, 2019 22:16
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| [ | |
| "Harry Potter", | |
| "Gryffindor", | |
| 40, | |
| "Hermione Granger", | |
| "Gryffindor", | |
| 140, | |
| "Draco Malfoy", | |
| "Slytherin", | |
| -20, |
matthew-gerstman
/ flatMap.js
Created
March 18, 2019 22:14
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| function flatMap(list, func) { | |
| return list.reduce((acc, item) => { | |
| const mappedItem = func(item); | |
| if (Array.isArray(mappedItem)) { | |
| acc = acc.concat(mappedItem); | |
| } else { | |
| acc.push(mappedItem); | |
| } | |
| return acc; | |
| }, []); |
matthew-gerstman
/ flatten-result.js
Created
March 18, 2019 22:14
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| [ | |
| { name: "Harry Potter", house: "Gryffindor", points: 40 }, | |
| { name: "Hermione Granger", house: "Gryffindor", points: 140 }, | |
| { name: "Draco Malfoy", house: "Slytherin", points: -20 }, | |
| { name: "Lin Manuel Miranda", house: "Slytherin", points: 5000 }, | |
| { name: "Taylor Swift", house: "Slytherin", points: 100 }, | |
| { name: "Cedric Diggory", house: "Hufflepuff", points: 12 }, | |
| { name: "Sally Perks", house: "Hufflepuff", points: 15 }, | |
| { name: "Luna Lovegood", house: "Ravenclaw", points: 100 }, | |
| { name: "Cho Chang", house: "Ravenclaw", points: 100 } |
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