Harshit's Optimization Station

Harshit Joshi

Senior SDE at Alexa AI · Skyscanner-Maxxing Enthusiast · OLED Purist

I scale Alexa to millions of users without breaking a sweat. Then I open a second monitor to babysit the Google Analytics dashboard for this exact website, refreshing it every nine seconds, praying for 73 concurrent users. The all-time record is 72. One of them was probably me on mobile. The other 71 are, statistically, my mom.

Live active users71all-time peak: 72 · goal: 73
01Travel

Skyscanner-Maxxing

My phone fires off price-drop alerts for flights out of Ahmedabad to Dubai, Singapore, and LA roughly every four minutes. I have a strict, non-negotiable rule: I will not book a single flight unless Skyscanner confirms the fare dropped by at least $3. Not $2.50. Not "basically $3." Three whole American dollars. I have watched a $40 price drop come and go because the alert lagged by one refresh. I do not regret it. The discipline is the destination.

Flight Price Optimizer

v2.6 · beta
Current fare to Los Angeles$1,889
Book at$1,509
highway robberybooking threshold

Absolutely not. Closing the tab.

At this price I would rather narrate the trip to myself from my desk chair.

02Consumer Tech

Samsung OLED Watchdog

I track Samsung's 2026 OLED TV lineup the way other people track their own children. I need absolute, light-swallowing blacks - not for movies, not for games, but to read my Morning Brew newsletter and stare at code in a void so deep it has its own gravity. An LCD's "black" is a personal insult. If I can detect a single backlit pixel, I file a bug report. With Samsung. About their TV. That I do not own. Yet.

OLED Black Level Simulator

0.0 nits

It is a solid block of pitch black. It does absolutely nothing. That is the entire point, and frankly the highest praise I can give a display.

03On-Device AI

Vibe Coding & llama.cpp Tuning

My evenings are spent nudging quantization levels and context windows in llama.cpp until my laptop fans spin up to a pitch best described as "departing Amtrak." I build cutting-edge AI for millions of people during the day. By night I have written a personal task orchestrator so advanced it occasionally deadlocks when someone in the kitchen asks me for a cup of water. Two threads, one glass, infinite waiting. We are working on it.

Cooling Fan Telemetry

idle
2,200rpm
Tokens/sec47.3personal best, fans at full
Deadlocks1re: cup of water, unresolved
Laptop temp97°Cload-bearing, do not touch