Ashutosh Singh

Mostly tech and psych here. Engineering @runable_hq

[Ashutosh Singh @4shutoshSingh]

@theapache64 Or a custom slack sticker

[Shu @shuding]

13 years ago, Apple asked a question that hits me harder today than ever:

If everyone is busy making everything, how can anyone perfect anything?

Every day, I see a world flooded with effortless AI slops. I’m realizing that to build something truly great today, you need a level of focus the world has never demanded before.

It feels like trying to write a quiet, beautiful song in a room full of loud noise.

[Ashutosh Singh @4shutoshSingh]

@shaurya_sinha7 Banger

[Ashutosh Singh @4shutoshSingh]

@theapache64 ⭐

[Ashutosh Singh @4shutoshSingh]

@somanna_bu Bottom right

[Ashutosh Singh @4shutoshSingh]

Full walkthrough with jadx, Frida script, charles setup, everything:
https://t.co/S1xnOiMO42

[Ashutosh Singh @4shutoshSingh]

A piracy app streaming live cricket. Cert pinning, obfuscated class names, Base64-encoded everything.

I took it apart. Here's what was inside

[Ashutosh Singh @4shutoshSingh]

They hardened the client carefully.
Custom TrustManager, tool blacklist, obfuscated class names, Base64 everywhere.

But once traffic was visible, the overall pattern was clear. The architecture gave it away: which domains, what sequence, what was being protected.

A locked screen door.

[Ashutosh Singh @4shutoshSingh]

If you enjoy longer form detailed text: https://t.co/1hmXaCSMrO

[Ashutosh Singh @4shutoshSingh]

Most people think CDNs are cheap because they're closer to the user.
That's true, but it's the least interesting reason.

The real answer is in how CDN hardware is built: and it's fundamentally different from your origin server.

🧵

[Ashutosh Singh @4shutoshSingh]

If you want to go deeper, the terms behind what we discussed:

Network card → NIC (Network Interface Card)
The polling trick → DPDK (Data Plane Development Kit)
"Hot files kept in RAM" → Hot tier cache
Skipping the OS → Kernel bypass
Sending files without copying → sendfile() / zero-copy I/O
CPU core-to-NIC assignment → IRQ pinning
Keeping NIC, CPU, and memory on the same chip → NUMA locality