How I added a CSP and security headers to this portfolio with a single _headers file, and the third-party hosts it would have silently blocked.

• security
• cloudflare
• astro

A small CloudFormation stack that triggers a Lambda function when a file lands in S3, and the three gotchas worth knowing before you write it.

• aws
• cloudformation
• lambda
• s3

An honest breakdown of navigating the AWS learning curve — setting up VPC subnets, EC2 instances, Nginx proxies, and automated deployment pipelines.

• aws
• cloud
• ci/cd

A short post-mortem on a concurrent bug that looked fine in the logs.

• debugging
• backend

What changed when an API stopped being a tutorial and started having callers.

• api
• backend

A habit for slowing down when a backend error looks louder than it is.

• debugging
• backend