Welcome to sjramblings.io
Personal blog about Technology, AWS, and software development. Sharing insights, tutorials, and experiences from the world of software engineering.
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Latest Posts
Your AWS Certificates Just Got Shorter: What the 198-Day Validity Change Actually Means
On 18 February 2026, AWS quietly updated ACM to reduce the default validity of public certificates from 395 days to 198 days. If you’re running anything on AWS that terminates TLS — CloudFront distributions, Application Load Balancers, API Gateway endpoints, Elastic Beanstalk — this affects you.
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Is Infrastructure as Code the Next Abstraction to Fall?
I’ve been staring at a Terraform module for the last ten minutes, and I can’t stop thinking about a question that would have been absurd two years ago: why am I writing this?
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AWS Finally Launches Nested Virtualisation on EC2: Better Late Than Never
If you’ve ever needed to run a hypervisor inside an EC2 instance, you know the pain. For years, the answer from AWS was simple: buy a bare metal instance. That meant paying for an i3.metal or m5.metal just to get access to hardware virtualisation extensions. Need to test a Firecracker microVM setup? Bare metal. Want to run KVM for a security sandbox? Bare metal. Running nested Hyper-V for a Windows lab? You guessed it.
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Building Your Own AI Agent Stack. What I Learned From 10 Open Source Projects
I spent the last week falling down a rabbit hole. Not the productive kind where you emerge with a working solution and a sense of accomplishment. The kind where you save ten GitHub repos in a single week and then sit back and realise they’re all telling you the same thing.
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