📝Daily
Day 6
Tony Duong
Mar 16, 2026 · 1 min
#daily#youtube#ddia#databases#replication#aws#certification#cloudops#shirimono#illustration#claude
Today, I:
- watched Designing Data-Intensive Applications: Chapter 5 — live stream walkthrough of replication (single-leader, primary and replicas, scaling reads, availability zones)
- started studying for AWS Certified CloudOps Associate — planning to take the exam in 2 weeks, began with EC2 (very easy, lots of reminders)
- wrote AWS EC2 notes (launch, resize, placement, SSH, Instance Connect, CloudWatch) from tutorial transcripts
- continued AWS CloudOps study with AMI — custom AMIs, No-Reboot vs integrity, cross-account sharing/copy, EC2 Image Builder, production tagging with IAM and Config
- used ilus.ai to generate some illustrations for Shirimono
- found out about the Claude March 2026 usage promotion — 2× usage off-peak (outside 8 AM–2 PM ET weekdays) through Mar 27
