https://tlaboratory.net/en/Practical write-ups on software development — Flutter, app operations, servers, scraping and AI — from running 15+ apps in production.enhttps://tlaboratory.net/en/python-static-site-generator-multilingual/https://tlaboratory.net/en/python-static-site-generator-multilingual/Mon, 09 Nov 2026 00:00:00 +0000Why we wrote our own static site generator instead of using Hugo, and how it handles hreflang, noindex legacy posts, ad slots, JSON-LD and safe incremental FTP deploys.https://tlaboratory.net/en/php-prepared-statements-change-json-number-types/https://tlaboratory.net/en/php-prepared-statements-change-json-number-types/Mon, 09 Nov 2026 00:00:00 +0000Switching mysqli query() to prepared statements turns "7" into 7 in json_encode. Measured on PHP 8.5 + MariaDB 11.8, and why an old Flutter app crashes on it.https://tlaboratory.net/en/litespeed-htaccess-rewrite-non-ascii-urls/https://tlaboratory.net/en/litespeed-htaccess-rewrite-non-ascii-urls/Mon, 09 Nov 2026 00:00:00 +0000Encoded or decoded patterns, how to write a space, whether a 301 keeps the query string: 23 requests against a real LiteSpeed server, and how to test safely.https://tlaboratory.net/en/hosting-account-migration-what-broke/https://tlaboratory.net/en/hosting-account-migration-what-broke/Mon, 09 Nov 2026 00:00:00 +0000Every page returned 200 after a hosting account move, yet the FTP root, cron paths, venv, permissions and a cron field had all quietly broken.https://tlaboratory.net/en/flutter-migration-16-apps-what-broke/https://tlaboratory.net/en/flutter-migration-16-apps-what-broke/Mon, 09 Nov 2026 00:00:00 +00006 web-view wrappers went native and 10 older Flutter apps were modernised in 8 weeks. The build errors, store rejections and rollbacks we hit.https://tlaboratory.net/en/fcm-scheduled-push-php-cron/https://tlaboratory.net/en/fcm-scheduled-push-php-cron/Mon, 09 Nov 2026 00:00:00 +0000Result notifications for 8 Flutter apps from a 5-minute PHP cron and FCM HTTP v1. Send when the data changed, once a day, and never trust a 200.https://tlaboratory.net/en/dart-http-post-redirect-not-followed/https://tlaboratory.net/en/dart-http-post-redirect-not-followed/Mon, 09 Nov 2026 00:00:00 +0000A Flutter app search failed silently on a POST 301. What Dart 3.11 and http 1.6 do for every redirect code, compared with curl, and a tested fix.https://tlaboratory.net/en/cdn-caches-api-responses-and-redirects/https://tlaboratory.net/en/cdn-caches-api-responses-and-redirects/Mon, 09 Nov 2026 00:00:00 +0000After a routing change, four API URLs kept serving old 301s from the CDN. What Hostinger's CDN caches, measured header by header.https://tlaboratory.net/en/app-privacy-policy-from-manifests/https://tlaboratory.net/en/app-privacy-policy-from-manifests/Mon, 09 Nov 2026 00:00:00 +000024 store listings pointed at a placeholder template. We rebuilt policies for 17 apps from pubspec, Info.plist and the merged Android manifest.https://tlaboratory.net/en/algorithm-binary-search/https://tlaboratory.net/en/algorithm-binary-search/Mon, 09 Nov 2026 00:00:00 +0000Binary search halves a sorted array on every step. Our 2021 example no longer compiled, its comparison counts were off by one, and it had the classic overflow bug. Fixed and measured.https://tlaboratory.net/en/admob-remote-ad-config-server/https://tlaboratory.net/en/admob-remote-ad-config-server/Mon, 09 Nov 2026 00:00:00 +0000Why we replaced Firebase Remote Config with a 141-line PHP endpoint, the app-side fallback, and what changing ad intervals without a rebuild did to CTR.https://tlaboratory.net/en/wordpress-to-static-without-breaking-store-urls/https://tlaboratory.net/en/wordpress-to-static-without-breaking-store-urls/Sun, 08 Nov 2026 00:00:00 +000024 store listings pointed at WordPress pages. How we moved to a static site on LiteSpeed, kept every registered URL at 200 and cut over in 5 minutes.https://tlaboratory.net/en/move-legacy-php-api-without-breaking-old-app-versions/https://tlaboratory.net/en/move-legacy-php-api-without-breaking-old-app-versions/Sun, 08 Nov 2026 00:00:00 +00008 API folders, 102 PHP files and apps you cannot force-update. Moving them under /api/v1 with internal rewrites, response snapshots and a proof header.https://tlaboratory.net/en/ai-coding-agent-live-server-guardrails/https://tlaboratory.net/en/ai-coding-agent-live-server-guardrails/Sun, 08 Nov 2026 00:00:00 +0000An AI agent migrated our live site and 8 app APIs in one evening. The mistakes it made, the checks that caught them, and what stayed with humans.