Hey everyone,
Practicing DSA is interactive because online judges immediately tell you if you hit AC or TLE, whereas practicing High-Level Design (HLD) / System Design usually means passively reading blogs with no way to test your architecture.
So I built HLDArena: https://hldarena.vercel.app
What it does:
Draw & explain: Wire your system architecture on a whiteboard canvas and write a short plain-English HLD spec. Deterministic 60s simulation judge (zero LLM randomness): Stress-tests your design against viral traffic spikes, hotkey skew, DB crashes, p99 latency SLOs, and monthly cloud cost budgets. Objective verdicts & ratings: Gives AC, TLE, SPOF, OVER_BUDGET, etc., a scrubbable 60s telemetry replay, and a competitive rating graph across Easy → Expert HLD problems.
heavy light decomposition arena
looks cool, but wtf is hld?
these days im tryna start cp and electrical stuff, is it related to that? damnn
if you want to watch cp you need to use electrical stuff yeah
tf was i even trying to do.... am i drunk
wtf wtf i am feeling disgusted.... eww yuck wtf did i just said
what tf did i thought before saying it, SON THAT WAS CRINGE AS FUCK AND DEFINITELY WASNT COOL
OMG........ IM DONE, I CANT SHOW MY FUCKING FACE TO ANYONE WHY TF WILL I SAY THAT THATS LITERALLY CRINGE!!!! TS AINT COOL
FUCKKKK HOW TO EXPRESS DISGUST WHICH I AM FEELING TO MYSELF [:SOB:]
alright.... i am turning recent action off, i need to grind seriously now...