Week 9 2025

Work

• Dev env migration
  • 10 backend services deployed. To-do: restore RDS snapshot
  • PoC restore RDS snapshot from different AWS account
    1. (target account) Create customer-managed KMS key and add permission for source account. Default AWS-managed key won't work with snapshot sharing
    2. (source account) Create snapshot (either from running DB or auto snapshot) using the key. Then share it with target account
    3. (target) Check shared snapshot in RDS console > Snapshot > Shared with me
    4. (target) Restore the snapshot with different KMS key. Don't use the shared key. aws/rds key should be fine

Other

• Started to learn Zig
  • Using zig.guide. So far it's easy to grasp
  • Error union concept is a bit different compared to Rust and Go. It will return either a value or an error instead of struct of value and error
  • try and catch are refined around error union. catch can be used in an expression. And try is a shortcut to simply return caught error
• Started to learn Jujustu vcs
  • Changes are auto committed by default(?)
  • Encourage user to define their to-dos before doing any work. Two well-known workflow are squash worfklow and edit workflow
  • I found Steve Kalabnik's tutorial very helpful
• Arch community repos have been deprecated. Make sure to update /etc/pacman.conf