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Getting to Know the Linux Filesystem as a DevOps Beginner

While working on my EC2 instance, I kept coming across paths like /etc , /var/log , and /usr/share . I wanted to understand what these directories do and when I might need them while managing a Linux…

  • Linux filesystem organized like a house with / as the root directory
  • /bin contains essential commands like ls and cp for everyday tasks
  • /etc holds configuration files dictating system and application behavior

Real Watch Time from Noisy Video Player Logs

Originally published on mahdimolavi.ir . "How much of this video did the student actually watch?" sounds like a question with a one-line answer.

  • Player transmits lightweight JSON events for each activity
  • Ingestion service accepts events quickly, returns 503 error on overload
  • Analysis engine reconstructs viewing sessions with four key rules

I built a zero-cost Instagram toolkit with 47 static pages, 2 edge functions and no framework

I wanted one clean place for the small Instagram chores people google every day: fancy bio fonts, keeping line breaks in captions, splitting a photo into a profile grid, posting without cropping, and…

  • IGKit created to consolidate common Instagram tasks with zero server costs
  • 47 static pages built using plain template strings and vanilla JavaScript
  • Edge functions used for server-required features, with CDN caching for data

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