Day 13

Today, I:

• watched Git Will Finally Make Sense After This — nice reminder for Git: commits as snapshots, branches as sticky notes, HEAD, detached HEAD, three areas (working/staging/repo)
• continued studying for AWS CloudOps Engineer Associate: practiced ALB hands-on demo — launched 2 EC2 instances, created ALB with target group, verified round-robin load balancing and health checks (stop instance → unhealthy → traffic stops; start → healthy again)