The notebook

All AI & LLMs Cloud & DevOps Industry Insights Laravel & PHP Modernisation Performance & Scale SaaS & Product Security & Compliance

All posts 113 posts

09 Nov 2025 Performance & Scale When a queue backlog grows faster than it drains A client doubled their queue workers twice and the backlog kept growing. The fix was arithmetic, not hardware — finding the real throughput ceiling and raising it. → 02 Nov 2025 Performance & Scale Reading a slow query log without guessing Most performance work starts with a guess. Mine starts with the slow query log — how I configure it, digest it, and decide what to fix first on a Laravel application. → 28 Oct 2025 Performance & Scale Eager loading is not a silver bullet Eager loading fixes N+1 queries, but with() can also make pages slower and hungrier. Where it backfires — with real numbers — and what to reach for instead. → 21 Oct 2025 Performance & Scale Your infrastructure bill is a query problem Before you pay for a bigger server, read your query log. Most Laravel hosting bills are inflated by N+1 queries and missing indexes — and the fix is permanent, not monthly. → 14 Oct 2025 Performance & Scale What a Laravel performance audit actually looks for A Laravel performance audit is not guesswork — it is a checklist run in the order it pays off. Here is mine: measure first, queries second, caching third, infrastructure last. → 10 Oct 2025 Performance & Scale How I found 3,930 wasted queries in a single page load One dashboard page was issuing 3,982 database queries. Fifty-two of them were doing real work. This is the investigation, step by step, so you can run it on your own Laravel app. → 03 Oct 2025 Security & Compliance Answering "can another customer see our data?" architecturally Enterprise buyers always ask whether another customer can see their data. A policy answer loses the deal; an architecture answer wins it. Here is the difference, from a platform that shipped. → 26 Sep 2025 Security & Compliance Where tenant-scoped file storage actually goes wrong Your tenant isolation is airtight in the database and full of holes on disk. The five file-storage leaks I keep finding in multi-tenant codebases, and what replaces them. → 22 Sep 2025 SaaS & Product Migrating 200 tenant databases without downtime Database-per-tenant means every schema change runs 200 times, and some of those runs will fail. The playbook I use to migrate a whole tenant fleet with the product still up. → 15 Sep 2025 SaaS & Product Giving every tenant their own cPanel account Most SaaS isolation is a WHERE clause. On one platform I went further: every tenant gets its own cPanel account — filesystem, database, domain, the lot. Here is why, and how. → 08 Sep 2025 SaaS & Product One database per tenant: what it costs and what it buys I run a SaaS where every tenant has its own database. The isolation is real and so is the operational tax. Here is the honest ledger of what the architecture costs and buys. → 04 Sep 2025 Laravel & PHP Syncing national company registries: PRH and YTJ in practice I built a continuous sync against Finland's PRH and YTJ registries that enriches company records without clobbering user data. Here is what the docs never tell you. →