Technical Notes

Browse technical notes, course breakdowns, and debugging writeups organized by topic.

All tags
6.100LaccessibilityAgent SkillsAI agentsAI toolsAPI designAstroasyncB-treebrowser APIscapability securityClaude Codecloud deploymentCloudflareCloudflare WorkersCodexcomputer scienceconcurrencyconstraintsContainerscontext engineeringCSSCSS Overflow 5data modelingdatabasedeploymentDynamic WorkersGitHTMLhydrationindexingJavaScriptjob queueLLMMCPMCP AppsmergeMIT OpenCourseWareNext.jsOSSUPostgreSQLprerenderingprimary keyprogrammingprogressive enhancementpythonquery plannerReact Server ComponentsrebasesecurityserverlessSPASQLSSRstatic sitetoken efficiencyUIUUIDv7verificationversion controlView Transitionsweb developmentweb performanceWorkersworkflow

A Database Is Not a JSON Blob: Let Constraints Protect Data

2026-08-23

AbortController: Cancel Stale Work, Not Every Error

2026-08-21

Navigation API: A Router Primitive, Not an SPA Mandate

2026-08-20

Speculation Rules: Faster Navigation Must Not Do Things Early

2026-08-19

Browser Scheduler: Classify Work Before You Queue It

2026-08-18

MCP Tool Results: Decisions, Not API Dumps

2026-08-17

<details> Is Disclosure, Not an Accordion System

2026-08-16

Popover API: Less UI State, Not Free Accessibility

2026-08-15

PostgreSQL SKIP LOCKED: Job Queue, Not Magic Broker

2026-08-14

Native CSS Carousels Are an Enhancement, Not a Rewrite

2026-08-13

Cloudflare OS: Sandboxes Are Not the Security Model

2026-08-12

PostgreSQL 18 Skip Scan: The Leftmost Rule, Revisited

2026-08-11

A Green Build Is Not a Live Release

2026-08-10

MCP Apps Put UI in Chat, Not in Every Tool

2026-08-10

Your SSR Data Is Part of the Page Weight

2026-08-09

View Transitions Make MPAs Smoother, Not SPAs

2026-08-07

Cloudflare Containers: When a Worker Is Not Enough

2026-08-06

UUIDv7 for Primary Keys: Better, Not Universal

2026-08-05

Agent Skills: Build Verifiable Workflows

2026-08-04

Caveman: Terse AI Agents, Same Accuracy

2026-04-13

Git Merge vs Rebase: Which Should You Use?

2026-01-08

MIT 6.100L: Loops, Guessing, and Binary

2026-01-06

MIT 6.100L Lecture 3: Iteration

2026-01-03

MIT 6.100L: Strings, I/O, and Branching

2026-01-01

MIT 6.100L Lecture 1: Introduction

2025-12-28