News
C# Networking Deep Dive with io_uring part 5 - Threadpool Rant
2+ hour, 19+ min ago (635+ words) Part 5 was going to be about integrating on Kestrel, instead this is going to be a rant about io_uring and threadpool. This story doesn't begin with io_uring, to be honest with you I love epoll(plot twist: o) and the reason why I…...
The Silent Killers of Go Concurrency: Mutexes, Semaphores, and Goroutine Leaks
2+ hour, 36+ min ago (1401+ words) Go makes concurrency look simple. And suddenly your code is running in another goroutine. That simplicity is one of the reasons I like Go so much. But after working on backend systems, notification pipelines, high-traffic APIs, and production services under…...
Design a Feature Flag Service: 100k SDK Clients and the SSE Protocol Reframe
7+ hour, 33+ min ago (872+ words) Naive feature-flag designs die at 100k SDK clients. The interview-winning answer reframes the protocol from poll to push and evaluates at the edge. Tagged with systemdesign, interview, distributedsystems, scalability....
Stop Using Type Script as a Type Checker " Start Using It as a Design System
12+ hour, 36+ min ago (327+ words) Type Script is often introduced as: That definition is technically correct " and practically misleading. Because if this is how you use Type Script, you are only using ~30% of its value. The real power of Type Script is not in preventing…...
The Git Filesystem - Recreating the Content-Addressable Database
1+ day, 5+ hour ago (982+ words) You've used Git every single day for years. You've resolved merge conflicts at midnight, force-pushed to the wrong branch, lost an afternoon to a detached HEAD. You know git rebase -i well enough to teach it. You've explained pull requests…...
Cyber Arena " Interactive Cyber Security Simulation & Threat Analysis Platform
1+ day, 3+ hour ago (19+ words) Excited to share my latest project " Cyber Arena, an interactive Cyber Security Simulation & .. . Tagged with cybersecurity, python, threatanalysis, programming....
I built a Redis clone in C: From blocking I/O to epoll to crash safe persistence
1+ day, 16+ hour ago (821+ words) I had been hearing about sockets, TCP connections, and networking for years without truly understanding what any of it meant at the code level. Building C-dis changed that. I learned the full socket lifecycle, what happens on both sides of…...
Idempotency Keys: The API Safety Net You Probably Aren't Using
1+ day, 21+ hour ago (332+ words) Network failures happen at the worst possible times. A user clicks "Pay Now," your request hits the payment API, the connection drops before the response arrives " and now you don't know if the charge went through. Do you retry and…...
I Built chanprobe Because My Go Queues Were Invisible
2+ day, 2+ hour ago (1151+ words) I like Go channels. They are one of those language features that feel simple in the best possible way. You can write something like this: And for a lot of cases, that is enough. But after using channels in real…...
Pitch: Nven - Sync secrets. Ship faster.
2+ day, 9+ hour ago (114+ words) I've been working on a small developer tool called NVEN. The idea came from a problem I kept seeing across projects and teams: managing. env files manually becomes chaotic very quickly. So I started building a CLI-first secrets manager focused…...