# posts
Docker Rootless: high security and high performance
How Docker's rootless mode works and how to install it, where it genuinely helps, and the cases where running the daemon without root is the wrong call.
AWS Network Fundamentals for EC2 instance!
Build an EC2 network from scratch: VPCs, public and private subnets, internet and NAT gateways, route tables, and how NACLs differ from security groups.
Reverse Proxy and Load Balancing: Do we need both?
Configuring Nginx as both a reverse proxy and a load balancer, with SSL termination for client-server traffic - and a straight answer on whether you need both.
UUID or ULID: Awesomeness of Unique Identifiers!
UUID vs ULID: how each is laid out byte by byte, what UUID1, 3, 4 and 5 actually encode, and which to reach for when you need identifiers that sort by time.
Sidecar Pattern
What the sidecar pattern solves in microservices, explained through a Counter-Strike analogy, and when a helper container beats building the capability inline.
How does python-dotenv simplify Configuration Management?
How python-dotenv keeps configuration and secrets out of your Python source, from writing a first .env file to what load_dotenv() actually does at runtime.