https://harshityadav.github.io/anything and everything from machine learning data sceince, projects & progress, SolvePao Tron Legacy ,system design and maybe food ? 2026-07-21T22:05:39+08:00 Harshit Yadav https://harshityadav.github.io/ Jekyll © 2026 Harshit Yadav /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png 2026-07-21T02:30:00+08:00 2026-07-21T22:04:51+08:00 https://harshityadav.github.io/posts/SSH-ID/ harshityadav95

SSH ID SSH access has a deceptively simple problem. You own a laptop, a desktop, perhaps a work machine, a phone-connected terminal, and maybe a hardware security key. Every one of those devices can generate its own SSH key pair. That is good: private keys stay local. But it creates operational friction. Every server needs to know every public key you may use. SSH ID makes that public-key di...

2026-07-20T02:30:00+08:00 2026-07-20T02:30:00+08:00 https://harshityadav.github.io/posts/HTTP-2-over-TCP-vs-HTTP-3-over-QUIC/ harshityadav95

Greeting Users and programs today are diving deep into the plumbing of the internet. We are going to strip away the abstractions and look at the bare metal difference between HTTP/2 over TCP/TLS and HTTP/3 over QUIC. If you are building high-performance backends, designing APIs, or tuning reverse proxies like NGINX or Envoy, understanding this shift isn’t optional. It completely alters how you...

2026-07-08T00:00:00+08:00 2026-07-08T00:00:00+08:00 https://harshityadav.github.io/posts/Query-Method-in-HTTP/ harshityadav95

Recap Now, you might have heard engineers whispering about a new query parameter designed to fix our search API problems. what’s actually happening at the protocol layer right now is infinitely cooler. It’s not a parameter at all. The IETF just stepped in and dropped an entirely new HTTP Method called QUERY, officially standardized under RFC 10008 in June 2026. This is one of the most inte...

2026-07-03T20:10:00+08:00 2026-07-03T20:25:01+08:00 https://harshityadav.github.io/posts/apple-containers/ harshityadav95

A pragmatic deep dive into Apple's native container runtime, comparing its one-VM-per-container virtualization model against Docker Desktop's shared VM architecture, including networking and security trade-offs.

2026-06-23T00:00:00+08:00 2026-06-23T03:01:22+08:00 https://harshityadav.github.io/posts/Connection-Pooling-in-PostgresSQL/ harshityadav95

Connection pooling is one of those foundational backend architecture patterns that sounds basic, but still gets ignored in many real-world systems. I still see applications that open a new database connection for every incoming HTTP request, run a query, and then immediately close the connection. It works. But it is incredibly expensive. If your application does this, you are paying the conne...