Technical Knowledge Log
A focused archive of software development notes, architecture decisions, infrastructure concepts, debugging records, and system design trade-offs.
36 logs in 2026
Recent Posts
View all logs ->Lazy Loading And Stage-by-Stage Map Screen Loading
A practical note on using lazy loading and priority-based loading to prevent a heavy map screen from blocking the app.
FrontendPerformanceReact NativeArchitecture
AWS Beginner: EC2 Basics
A beginner-friendly introduction to EC2, operating system choices, user data, security groups, inbound and outbound rules, and SSH key pairs.
AWSCloudEC2Linux
EC2 SSH Problem: Selected Vockey but Missing Private Key
A problem log about why EC2 SSH fails when the selected key pair or vockey does not match the private key on the local machine.
AWSEC2SSHDebugging
EC2 HTTP Test Problem: Browser Tried HTTPS
A problem log about why an EC2 web server can look broken when the browser tries HTTPS while only HTTP is allowed.
AWSEC2HTTPDebugging