About

Code Mirroring is an educational site for software engineers who want interview-ready system design, data structures in Golang, AI fundamentals, and small tools that do not upload your data.

I write the long walkthroughs the way I would teach a colleague: start from a concrete failure (two riders, one driver; a tweet to thirty million followers; a debit that precedes a jammed ATM), name the invariant, then add infrastructure only when a simpler design breaks.

What you will find

• System design — HLD and LLD interview walkthroughs with scale math, APIs, failure tables, and a 1–2 minute verbal answer
• Data structures and algorithms — Golang solutions with the pattern called out
• Artificial intelligence — one progressive fundamentals guide
• Tools — formatters, estimators, and distributed-systems visualizers that run in the browser

Pages are meant to stand alone. I do not scrape other sites or publish empty section stubs in the main menu.

Contact

Questions, corrections, or topic requests: Contact or codemirroring@gmail.com.