Jacob (@fat) / X

Jacob

1,667 posts

Jacob

@fat

worst engineer at the company, third coolest… created bootstrap 300 years ago… now building things at the Pierre Computer Company.

Oakland

pierre.computer

Joined September 2008

Pinned
Jacob
@fat
May 29
Finally got @amadeus to write about what goes into making our diffs so special. A love letter to FE development: web workers, WASM, novel virtualization and memory management techniques, and more. Fun read if you're a perf geek and hate blanking.
On Rendering Diffs
From pierre.computer
24K
Jacob
@fat
Oct 16, 2021
Google docs needs to GIVE IT UP with these page breaks. I'm tired. Noone is printing this shit.
Jacob
@fat
Jun 17, 2025
still dont trust an llm to write css, but it is my lawyer and doctor
141K
Jacob
@fat
Sep 10, 2024
This summer we went into a hole and rewrote the bulk of Pierre off of RSC and onto a local first sync-engine called Replicache. It's… really fast.
00:00
146K
Jacob
@fat
Mar 4, 2025
WOW. okay. You can now just SIGNUP for Pierre [dot] co. No waitlist, just a button.   To commemorate this, we built a new website, new brand, have new funding, and changed our legal name to Pierre Computer Company, Inc. More details below (here’s a video of the website).
00:00
167K
Jacob
@fat
Nov 29, 2022
watching @vercel just build an infinitely better heroku makes me wonder if it's finally time for someone to start rebuilding github
Jacob
@fat
Sep 5, 2023
ALRIGHT SOMEHOWWWW im getting really hype on CI which is not something I thought would ever happen. So here's some of the stuff we're doing… 1) Jobs are written in typescript (not yaml). And the api looks like it was written by js nerds instead of people that fucking hate js.
209K
Jacob
@fat
Jan 13, 2022
my kink is i can only work on a couch in the most fucked up position imaginable, with a battery perpetually at 5% AND i have to be staring across the room at a perfectly good, ergo desk setup, with external monitor, ring light, etc. that i never use
Jacob
@fat
Jan 19, 2022
normalize writing js in your 30s
Jacob
@fat
Sep 19, 2023
Alright……… i dont know if i'd say "GREAT" alternative
31K
Jacob
@fat
Jan 25, 2024
Imo the source of truth for the visuals of your app isn’t design files anymore. It isn’t in figma. It’s code. Specifically design systems. The best product teams in the world aren’t sweating pixel perfect mocks or handoffs. They’re staffing up and wrangling design systems.
Dylan Field
@zoink
Jan 25, 2024
We launched Dev Mode last year to make @Figma work better for developers and I’m so excited for the new features shipping next week. They will speed up handoff and help keep design and dev in closer sync. More details before these features go live Jan 31! figma.com/blog/dev-mode-…
68K
Jacob
@fat
Nov 29, 2023
Imagine a tool built from the ground up ✨JUST for product engineers ✨ What would that even look like? How would it be different from what’s already out there? Excited to start showing off a bit more of our story and what we’ve been up to on pierre.co A 🧵
96K
Jacob
@fat
Sep 19, 2023
So w/ Pierre, we've been rethinking A TON around discussion & code reviews. FIRST, everything is character based instead of line based. Turns out things become super clear when you can actually just highlight what you want to talk about. Spelled this wrong? Refactor these lines?
GIF
69K
Jacob
@fat
Jan 10, 2022
in hypergrowth, it's unlikely you get promo'd as an IC as quickly as inflation around leveling happens this means older tenured employees are artificially down leveled over time or have to "work harder" for the same level interesting how the opposite is often true for managers