JonLuca's Blog

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The Last Renaissance Man

AI models may bring back the ability to combine deep expertise from every field toward a single goal.

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The Last Renaissance Man Vibecoding native apps has gotten really good SkyCards, ground truth: reverse‑engineering a flight‑spotting game Finding cool custom vanity CA license plates Optimizing AI Model Load Times Noticing when an app is only hosted in us-east-1 Exploring how Magic Link works Semantic search in iMessage, iMessage Wrapped, and AI conversations Getting a vanity phone number with 4 repeating digits Web3, Free Candy, and exploits galore Snapshotting memory to scrape encrypted network requests JavaScript gotchas Writing fast async HTTP requests in Python A boilerplate for SSR'd Vite, React 17, and TypeScript 4.3 How to redeem $2000 of HNS for being a FOSS developer Fun VPN tricks due to Apple owning all of 17.X.X.X What is tax loss harvesting? Zoh-no Zogo: Manufacturing pineapples (and cash) with Burp Suite Setting up Matomo in such a way to bypass adblockers Unlimited free WiFi on flights with T-Mobile Habitat 2020 - Coliving during COVID American Airlines is an e-currency company that happens to own some planes Thoughts on user growth and product Reversing Lyft's ride history API to analyze 6 years worth of rides How the Nintendo Switch prevents downgrades by irreparably blowing its own fuses Promise.all vs Promise.allSettled in JavaScript Goodreads has a time to first byte of nearly 5 seconds Re-enabling context actions on websites How much space would it take to store every word ever said? The hidden value of automation in programming comes from saving mental context switches 2019 Travel in Review - 52,848 miles, 137 hours, and 40 flights Flight stats, entertainment, and trying to crack widevine Email authentication: SPF, DKIM and DMARC out in the wild Reversing private APIs, Safeway, and not-so-extreme couponing Ember.js, Dr. Carvers Shave Butter, and disappearing products An analysis of activity on /r/churning Compensation in 2019 new grad tech offers Useful shell aliases and functions What's better - a broken clock or a clock that's always 5 minutes off? Around the world in business class: ANA RTW in J Identifying non-default global variables in JavaScript Experiments, growth engineering, and the perils of not disguising your API routes: Part 1 Obfuscated javascript, scam emails, and American Express Class schedules, a cease and desist from Viacom, and accidental monetization Uber, statistics, and a chrome extension Ryanair, Hamiltonian Cycles, and using graph theory to find cheap flights An introduction to credit card churning Making high-fidelity audio sound like it came through the phone Illegal streams, decrypting m3u8's, and building a better stream experience Leaky vs punch-through abstractions The Federalist Papers: author identification through K-means clustering The rise of megathreads on reddit Speeding up zsh and Oh-My-Zsh Old code is institutional knowledge On USC's CSCI-350 (Operating Systems) Disambiguating language type systems Information and economies of scale Words per minute is not a good measure of typing speed Why does this blog exist? 10x Performance Increases: Optimizing a Static Site