Welcome to sjramblings.io
Practical insights on AWS, AI agents, cloud architecture, and DevOps from Stephen Jones. Guides, tutorials, and opinions from the trenches of modern infrastructure engineering.
Read Latest Posts
Latest Posts
AWS IP Ranges, Visualised
AWS publishes a JSON file every day that nobody reads. It’s at ip-ranges.json. 2.4MB, no story.
Read More
Keeping Your AI Workloads Sovereign on AWS
An Australian lawyer asked me last week whether he could run “frontier Claude” on AWS Bedrock in Sydney and keep his client data in Australia. Simple enough question. The answer is one of those ones where you open your mouth ready to say “yes, obviously” and then close it again, because as of April 2026 the honest answer is “not the way you think, and here is the bit that will bite you.”
Read More
Sovereign Cloud Gets Real When Security Services Show Up
In March 2026, AWS Network Firewall became available in the European Sovereign Cloud. If you’re not paying close attention to the sovereign cloud space, that probably sounds like a minor service addition. I’d argue it’s one of the most significant milestones since the partition launched.
Read More
Patterns, Distribution, and Troubleshooting Your Claude Skills
This is Part 3 of a three-part series on building skills for Claude. Part 1 covered what skills are and why they matter. Part 2 walked through building and testing your first skill. Now we get into the stuff that separates a toy skill from a production one: proven patterns, distribution mechanics, and how to fix things when they break.
Read More