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Tutorial
+2
Oct 9, 2026
•
9 min read
A definition-first reference to S3 table buckets, plus a runnable boto3 build: a table bucket, a namespace, an Iceberg table, deliberately small writes from Athena, and a maintenance configuration you can inspect. Plan for about 45 minutes.
S3 Glacier
Oct 8, 2026
A definition-first reference to the three S3 Glacier storage classes, plus a runnable boto3 build: an archival lifecycle rule, a Bulk restore with a timer, and a cost model you can run before you archive anything. Plan for about 30 minutes of hands-on time, plus a few hours of waiting.
Web Development
Oct 7, 2026
6 min read
Next.js shipped two security releases in eight days, and the nastiest bugs lived in image routes. Here is the pattern behind them, and the one-hour audit it suggests for your own app.
design_patterns
+1
7 min read
A gateway gives your clients one address. A BFF gives each client its own backend. Most teams need the first, think they need the second, and build the wrong one in the wrong place.
S3
The definition, the cost model, the limits, and a versioned bucket with lifecycle that you build and cost out to the cent.
EC2 Auto Scaling
Oct 6, 2026
A reconciliation loop, not a scaler: the definition, the limits that bite, and a build with target tracking, a warm pool, and predictive scaling in forecast-only mode.
Oct 5, 2026
11 min read
Elastic Beanstalk is a deployment engine that wraps EC2, an Auto Scaling group and a load balancer in one object. This reference covers the model, the limits, and a runnable build with a rolling deploy and a blue/green swap.
Oct 4, 2026
When Lightsail is the right answer, when it is a trap you will migrate out of, and a script that builds a server, measures its CPU budget, and proves you can leave.
DevOps
eBPF instrumentation and OpenTelemetry SDKs measure different things, and the road to OBI 1.0 is quietly an argument for running both instead of picking one.
8 min read
A saga trades away the one ACID property nobody tells you about, isolation, and the hard part is putting it back.
Oct 3, 2026
10 min read
App Runner no longer accepts new customers. What it was, what replaced it, what the bill looks like, and a working migration to ECS Express Mode you can run for about a dime.
Oct 2, 2026
AWS Batch is a job queue bolted to a capacity manager. The definition, the cost model, the limits, and a 20-way array job on Fargate that costs about a cent.
