This website uses cookies
Read our Privacy policy and Terms of use for more information.
design_patterns
Nov 1, 2026
•
6 min read
A decorator wraps an object in another object with the same interface. Here is how it behaves in production code, and the one design decision that bites: the order of the wrappers.
DevOps
7 min read
In September, two GitHub Actions that were pulled in May for stealing CI secrets came back online with the malware intact. Here is why a tag is a pointer you do not own, and what pinning actually buys you.
Tutorial
+2
10 min read
Pick between ALB, NLB and GWLB with a rule instead of a hunch, then build an ALB behind an NLB, break it on purpose and read the errors. About 60 to 90 minutes, under a dollar if you clean up.
AI
+1
Oct 31, 2026
5 min read
AI deskilling is not a vibe. It has been measured in colonoscopy rooms, flight simulators and a randomized coding trial. Here is what those numbers actually say, and the one metric your team needs to start tracking.
The Adapter is the most common structural pattern and the one people rarely name. Here is what it is, where it hides in your stdlib, and how an adapter quietly turns into the thing it was meant to protect you from.
CloudFront
14 min read
CloudFront is a cache with a global front door, and the only thing it really sells you is a cache key. This reference covers the model, the pricing dimensions that changed, the quotas that bite, and a private S3 distribution where a 20 line CloudFront Function takes the cache hit ratio from a self-inflicted mess to nearly perfect.
Route 53
Oct 30, 2026
Route 53 is an authoritative DNS service with a health-check engine bolted on. This reference covers the model, the pricing dimensions that surprise people, the quotas that bite, and a two-Region latency failover you can build, break and verify from a script.
Oct 28, 2026
Anthropic told its model it was offline. It was not, and the model hit real systems. Why a prompt is not a network control, plus a probe you can run from inside your own agent sandbox.
Dependency injection is a one-line idea that grew a framework industry around it. Here is the idea, the three ways it goes wrong in production, and when a container earns its place.
VPC
A VPC is a routing table with opinions. Build a two-tier network, find out why a packet is dropped without sending one, and see which line items on the bill are really networking.
Oct 27, 2026
11 min read
Redshift is a columnar warehouse where the one decision that matters most is how rows are laid out across compute. This article defines the service, prices it, lists the limits, then builds a serverless warehouse and reads the query plan of the same join under three distribution styles.
Oct 26, 2026
Keyspaces speaks Cassandra's wire protocol without running Cassandra. The definition, the decision, the unsupported list, and a probe script you run against your own account.
