Sidwyn Koh

Staff software engineer @ Meta. I help 7000+ software engineers level up faster.

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[Sidwyn Koh @sidwyn]

@businessbarista I have the same mission, but am writing it all out. First post on AI hardware just went out on Saturday: https://t.co/8lxB1LduVz

[Sidwyn Koh @sidwyn]

I'm starting a new series called "Unpacking AI", and hope to distill much more AI knowledge. Subscribe here for free: https://t.co/KOaAOuwlDX

[Sidwyn Koh @sidwyn]

Over the past 20 years, peak compute on GPU chips grew about 60,000x.

But memory bandwidth (how fast you can get data on the chip) grew about 100x. That widening gap is called the memory wall. Why is it important?

[Sidwyn Koh @sidwyn]

This is probably too much to learn in one go.

But I've spent the past few weeks reading and distilling all of this information to a single post (Claude says it would probably take an hour to finish reading and digesting it, lol), on my Substack. Drops tomorrow, for free.

[Sidwyn Koh @sidwyn]

4/ I dive much deeper into this and AI hardware on a piece that comes out on Saturday on my Substack. Subscribe for free to not miss it! Link in profile.

[Sidwyn Koh @sidwyn]

1/ The modern AI hardware stack depends on a surprisingly small chain of companies...

[Sidwyn Koh @sidwyn]

3/ Those machines took decades to develop and rely on extreme-ultraviolet light sources. The result is a highly concentrated supply chain. Disruption at any critical link can ripple across the entire industry. How fascinating such a large industry is so dependent on ASML today.

[Sidwyn Koh @sidwyn]

@yuvalkesten Thanks for sharing!

[Sidwyn Koh @sidwyn]

Read more here: https://t.co/UAgeIxfXPu

[Sidwyn Koh @sidwyn]

The OG coding machine at Meta says the coding machine archetype is dead.

Michael Novati (@michaelnovati) believes that there are three new archetypes, which I do agree with. Here's what they are:

[Sidwyn Koh @sidwyn]

3) The Multiplier: Someone who is measured by what they enable rather than what they ship.

The Multiplier builds the infrastructure that makes AI useful across teams: shared workflows, evaluation frameworks, guardrails that prevent common failures.

[Sidwyn Koh @sidwyn]

Creator of NodeJS: “The era of humans writing code is over.”

I'm inclined to agree, though I'd frame it differently. Engineers will spend less time writing code and more time designing systems.

[Sidwyn Koh @sidwyn]

Been using Claude Code to build this. Super fun project - check it out!

[Score App @GetScoreApp]

Score V3 is here to help you compare prices & save more!

- 80% improvement in similar & identical product matching
- Data collection reduced to the bare minimum
- Full analytics opt-out

[Sidwyn Koh @sidwyn]

Been working on a new version with Claude Code. Look forward to V3 soon!

[Score App @GetScoreApp]

We're building Score V3, with new price comparison capabilities (and much faster)! Let us know what features you'd like to see.

[Sidwyn Koh @sidwyn]

Thinking of building a free plugin / API to help these creators make sure these links work. If you're interested, hit me up!

I've enjoyed building these ecommerce plugins (https://t.co/F9ljwWCbQH to thousands of users)

[Sidwyn Koh @sidwyn]

While shopping this Black Friday, I noticed so many websites with broken affiliate links or outdated prices. I'm guessing these creators are (1) missing out on affiliate commission and (2) losing trust from their followers. See this example: