JonLuca's Blog https://blog.jonlu.ca This is my blog RSS feed Vibecoding native apps has gotten really good https://blog.jonlu.ca/posts/vibecoding-native-apps Mon, 02 Feb 2026 03:34:03 GMT SkyCards, ground truth: reverse‑engineering a flight‑spotting game https://blog.jonlu.ca/posts/skycards Fri, 12 Sep 2025 01:50:21 GMT Finding cool custom vanity CA license plates https://blog.jonlu.ca/posts/ca-plate-checker Thu, 28 Aug 2025 20:26:40 GMT Optimizing AI Model Load Times https://blog.jonlu.ca/posts/optimizing-model-load-times Sat, 03 May 2025 22:28:40 GMT Noticing when an app is only hosted in us-east-1 https://blog.jonlu.ca/posts/us-east-1-latency Mon, 26 Jun 2023 16:26:53 GMT Exploring how Magic Link works https://blog.jonlu.ca/posts/magic-link Wed, 31 May 2023 00:53:42 GMT Semantic search in iMessage, iMessage Wrapped, and AI conversations https://blog.jonlu.ca/posts/mimessage Fri, 14 Apr 2023 04:31:20 GMT Getting a vanity phone number with 4 repeating digits https://blog.jonlu.ca/posts/verizon-rare-numbers Sat, 28 May 2022 15:06:28 GMT Web3, Free Candy, and exploits galore https://blog.jonlu.ca/posts/candy-machine Sat, 26 Feb 2022 23:59:43 GMT Snapshotting memory to scrape encrypted network requests https://blog.jonlu.ca/posts/heap-snapshot-scraping Sun, 08 Aug 2021 14:06:09 GMT JavaScript gotchas https://blog.jonlu.ca/posts/javascript-facts Sun, 18 Jul 2021 13:18:39 GMT Writing fast async HTTP requests in Python https://blog.jonlu.ca/posts/async-python-http Tue, 15 Jun 2021 03:02:29 GMT A boilerplate for SSR'd Vite, React 17, and TypeScript 4.3 https://blog.jonlu.ca/posts/vite Sun, 16 May 2021 16:49:29 GMT How to redeem $2000 of HNS for being a FOSS developer https://blog.jonlu.ca/posts/hns-airdrop Sun, 09 May 2021 21:22:33 GMT Fun VPN tricks due to Apple owning all of 17.X.X.X https://blog.jonlu.ca/posts/apple-wifi Fri, 12 Mar 2021 16:03:51 GMT What is tax loss harvesting? https://blog.jonlu.ca/posts/tax-loss-harvesting Thu, 11 Mar 2021 00:39:59 GMT Zoh-no Zogo: Manufacturing pineapples (and cash) with Burp Suite https://blog.jonlu.ca/posts/zogo-zono Wed, 20 Jan 2021 01:55:59 GMT Setting up Matomo in such a way to bypass adblockers https://blog.jonlu.ca/posts/matomo-bypass Thu, 17 Dec 2020 19:10:04 GMT Unlimited free WiFi on flights with T-Mobile https://blog.jonlu.ca/posts/tmobile-wifi Sun, 29 Nov 2020 12:12:29 GMT Habitat 2020 - Coliving during COVID https://blog.jonlu.ca/posts/habitat Sat, 31 Oct 2020 21:06:30 GMT American Airlines is an e-currency company that happens to own some planes https://blog.jonlu.ca/posts/american-airlines Sun, 06 Sep 2020 20:09:56 GMT Thoughts on user growth and product https://blog.jonlu.ca/posts/thoughts-on-product Sun, 30 Aug 2020 00:51:20 GMT Reversing Lyft's ride history API to analyze 6 years worth of rides https://blog.jonlu.ca/posts/reversing-lyft Fri, 03 Jul 2020 23:20:34 GMT How the Nintendo Switch prevents downgrades by irreparably blowing its own fuses https://blog.jonlu.ca/posts/nintendo-switch Sun, 14 Jun 2020 20:36:09 GMT Promise.all vs Promise.allSettled in JavaScript https://blog.jonlu.ca/posts/promises Thu, 14 May 2020 16:50:44 GMT Goodreads has a time to first byte of nearly 5 seconds https://blog.jonlu.ca/posts/goodreads Fri, 01 May 2020 06:45:21 GMT Re-enabling context actions on websites https://blog.jonlu.ca/posts/reallowing-context Wed, 01 Apr 2020 05:25:40 GMT How much space would it take to store every word ever said? https://blog.jonlu.ca/posts/word-storage Sun, 09 Feb 2020 20:23:47 GMT The hidden value of automation in programming comes from saving mental context switches https://blog.jonlu.ca/posts/context-switches Sat, 18 Jan 2020 23:21:31 GMT 2019 Travel in Review - 52,848 miles, 137 hours, and 40 flights https://blog.jonlu.ca/posts/year-review Tue, 24 Dec 2019 13:17:28 GMT Flight stats, entertainment, and trying to crack widevine https://blog.jonlu.ca/posts/aa-tracker Sun, 22 Dec 2019 17:18:51 GMT Email authentication: SPF, DKIM and DMARC out in the wild https://blog.jonlu.ca/posts/spf-dkim Sat, 30 Nov 2019 02:26:11 GMT Reversing private APIs, Safeway, and not-so-extreme couponing https://blog.jonlu.ca/posts/safeway Sat, 12 Oct 2019 17:16:27 GMT Ember.js, Dr. Carvers Shave Butter, and disappearing products https://blog.jonlu.ca/posts/dsc-products Sun, 08 Sep 2019 00:10:04 GMT An analysis of activity on /r/churning https://blog.jonlu.ca/posts/churning-stats Sat, 31 Aug 2019 22:49:35 GMT Compensation in 2019 new grad tech offers https://blog.jonlu.ca/posts/tech-offers Mon, 29 Jul 2019 02:48:00 GMT Useful shell aliases and functions https://blog.jonlu.ca/posts/shell-shortcuts Sun, 30 Jun 2019 01:55:46 GMT What's better - a broken clock or a clock that's always 5 minutes off? https://blog.jonlu.ca/posts/clock Sun, 02 Jun 2019 06:23:55 GMT Around the world in business class: ANA RTW in J https://blog.jonlu.ca/posts/ana-rtw Thu, 09 May 2019 04:49:13 GMT Identifying non-default global variables in JavaScript https://blog.jonlu.ca/posts/window-vars Mon, 01 Apr 2019 01:22:31 GMT Experiments, growth engineering, and the perils of not disguising your API routes: Part 1 https://blog.jonlu.ca/posts/experiments-and-growth-hacking Sat, 23 Feb 2019 20:16:46 GMT Obfuscated javascript, scam emails, and American Express https://blog.jonlu.ca/posts/deobfuscating-amex-scammer Sat, 02 Feb 2019 21:49:14 GMT Class schedules, a cease and desist from Viacom, and accidental monetization https://blog.jonlu.ca/posts/accidental-monetization Tue, 29 Jan 2019 03:57:33 GMT Uber, statistics, and a chrome extension https://blog.jonlu.ca/posts/uber-stats Sat, 22 Dec 2018 15:39:48 GMT Ryanair, Hamiltonian Cycles, and using graph theory to find cheap flights https://blog.jonlu.ca/posts/ryan-air Fri, 23 Nov 2018 21:14:51 GMT An introduction to credit card churning https://blog.jonlu.ca/posts/churning-primer Sun, 11 Nov 2018 17:11:41 GMT Making high-fidelity audio sound like it came through the phone https://blog.jonlu.ca/posts/phone-calls Mon, 29 Oct 2018 01:17:38 GMT Illegal streams, decrypting m3u8's, and building a better stream experience https://blog.jonlu.ca/posts/illegal-streams Sat, 22 Sep 2018 15:14:32 GMT Leaky vs punch-through abstractions https://blog.jonlu.ca/posts/leaky-abstractions Sat, 04 Aug 2018 18:07:47 GMT The Federalist Papers: author identification through K-means clustering https://blog.jonlu.ca/posts/the-federalist-papers-author-identification-through-k-means-clustering Sun, 08 Jul 2018 02:06:19 GMT The rise of megathreads on reddit https://blog.jonlu.ca/posts/the-rise-of-megathreads-on-reddit Thu, 07 Jun 2018 02:06:43 GMT Speeding up zsh and Oh-My-Zsh https://blog.jonlu.ca/posts/speeding-up-zsh Wed, 16 May 2018 18:43:26 GMT Old code is institutional knowledge https://blog.jonlu.ca/posts/old-code-is-institutional-knowledge Thu, 26 Apr 2018 14:55:06 GMT On USC's CSCI-350 (Operating Systems) https://blog.jonlu.ca/posts/on-uscs-csci-350-operating-systems Tue, 24 Apr 2018 03:10:25 GMT Disambiguating language type systems https://blog.jonlu.ca/posts/disambiguating-type-systems Thu, 19 Apr 2018 18:18:17 GMT Information and economies of scale https://blog.jonlu.ca/posts/information Mon, 16 Apr 2018 16:52:00 GMT Words per minute is not a good measure of typing speed https://blog.jonlu.ca/posts/wpm Sun, 15 Apr 2018 20:48:35 GMT Why does this blog exist? https://blog.jonlu.ca/posts/why-does-this-exist Sun, 15 Apr 2018 19:00:00 GMT 10x Performance Increases: Optimizing a Static Site https://blog.jonlu.ca/posts/optimizing-a-static-site Fri, 16 Mar 2018 19:00:00 GMT