Chiemeka KaluPersonal reflections and technical notes from a software engineer who writes about the early internet.https://chiemeka.dev/The guestbook was the first comment sectionhttps://chiemeka.dev/blog/guestbook-first-comment-section/https://chiemeka.dev/blog/guestbook-first-comment-section/Before threads and upvotes, visitors signed a page and left. What we lost when replies became the point.Mon, 14 Sep 2026 00:00:00 GMTPersonalEarly internetDesigning policy engines that fail closedhttps://chiemeka.dev/blog/policy-engines-fail-closed/https://chiemeka.dev/blog/policy-engines-fail-closed/Notes from building authorization checks for cloud workloads, and why the boring default is the right one.Sat, 22 Aug 2026 00:00:00 GMTTechnicalSecurityWhen directories were edited by handhttps://chiemeka.dev/blog/directories-edited-by-hand/https://chiemeka.dev/blog/directories-edited-by-hand/A look at human-curated web indexes, and the librarians who decided what the internet was about.Thu, 09 Jul 2026 00:00:00 GMTPersonalEarly internetIn defense of the RSS readerhttps://chiemeka.dev/blog/in-defense-of-the-rss-reader/https://chiemeka.dev/blog/in-defense-of-the-rss-reader/A chronological feed you control is still the calmest way to read the web.Sat, 30 May 2026 00:00:00 GMTPersonalReadingQueues all the way downhttps://chiemeka.dev/blog/queues-all-the-way-down/https://chiemeka.dev/blog/queues-all-the-way-down/What payments infrastructure taught me about idempotency, retries, and sleeping through on-call.Wed, 18 Mar 2026 00:00:00 GMTTechnicalDistributed systemsFrom keywords to links to intenthttps://chiemeka.dev/blog/keywords-links-intent/https://chiemeka.dev/blog/keywords-links-intent/Three eras of ranking a page, told through the queries people typed into them.Sun, 11 Jan 2026 00:00:00 GMTTechnicalSearch