robert Profile Banner
robert Profile
robert

@roberttwestbury

2,680
Followers
913
Following
47
Media
399
Statuses

@primer 🇺🇸

San Francisco, CA
Joined August 2019
Don't wanna be here? Send us removal request.
Pinned Tweet
@roberttwestbury
robert
8 months
uber driver yesterday told me his energy hack after a decade of truck driving 3 scoops instant coffee, mix w/ few drops of water, heat it up, add chocolate and salt, eat the goo. "the most sustained energy you'll ever have" all i thought was "this is stupid" anyway it works
@tszzl
roon
8 months
ask thirty smart people for advice, ignore them, listen to the Uber driver that tells you the folk wisdom
107
427
5K
197
5K
81K
@roberttwestbury
robert
2 years
some life updates: - dropped out of school - moved to sf - joined @Primer full time - turned 16 - fully furnished my apartment hard work behind, hard work ahead. 🫡
Tweet media one
104
34
2K
@roberttwestbury
robert
3 years
mfs put "working on something new" in their bio then be working on an app to say gm to your friends im mfs
Tweet media one
27
7
226
@roberttwestbury
robert
10 months
there is literally no reason to ever, publicly or privately, hate on someone young and ambitious total downside for everyone. at best shows a ton of insecurity and discontent for the world
3
4
85
@roberttwestbury
robert
2 years
how it started vs how it’s going
Tweet media one
Tweet media two
4
2
43
@roberttwestbury
robert
1 year
10p JFK-SFO is a great flight - spotted within 30m: - 8 ChatGPT tabs - 13 code editors - Guy in front of me with a slide deck covered in “H100” and “PyTorch” 🫡
4
1
99
@roberttwestbury
robert
11 months
While San Francisco schools are banning algebra, at @Primer we're offering AI courses to 3rd graders. To redefining what can be taught in the classroom and championing techno-optimism! 🫡
Tweet media one
7
6
73
@roberttwestbury
robert
3 years
🏋️‍♂️ Quick weekend side project: An app that helps you manage progressive overload in the gym - felt great to work on mobile again!
Tweet media one
Tweet media two
6
8
70
@roberttwestbury
robert
4 years
Life could be worse
Tweet media one
6
0
58
@roberttwestbury
robert
1 year
We're looking for an engineer to join us at @Primer . Come join as the third engineer building the OS for America's next education system — covering everything: student experience powering the day-to-day, family tooling tracking real-time educational outcomes, tools to turn
Tweet media one
Tweet media two
2
12
50
@roberttwestbury
robert
10 months
building
Tweet media one
4
1
49
@roberttwestbury
robert
3 years
15 🥳
19
1
40
@roberttwestbury
robert
10 months
99th percentile for just constantly showing up
@paulg
Paul Graham
10 months
How many people make it through each day of Replit's online 100 Days of Code tutorial.
Tweet media one
394
628
8K
0
1
23
@roberttwestbury
robert
6 months
incredibly easy to tweet all day about how bad the education system is. incredibly hard to talk about what you’re doing to fix it
1
1
35
@roberttwestbury
robert
1 year
This smash or pass ai project would never happen if people just focused on building one thing well. deep thought on what you're doing and living with it for months is incredibly underrated for this & actual learning very basic morals also help lol
5
1
41
@roberttwestbury
robert
3 years
🤩 Can’t wait to finally share what I’ve been working on in my free time for the past couple months! 👇 Grab it today at
@subsoapp
Subso
3 years
Introducing Subso — a new app that helps you navigate the vast content landscape by joining all creators' socials into one. 🔭 Available now on iOS, Android and web 👉
19
15
86
4
2
37
@roberttwestbury
robert
10 months
@aridutilh we have a network-wide one for every student at @Primer if that counts?
Tweet media one
1
0
35
@roberttwestbury
robert
7 months
a belief i've held for years: the 99th percentile of virtual instruction can be far, far better than the same level of instruction in-person. we're finally building it for every kid at Primer. 🫡
Tweet media one
2
1
32
@roberttwestbury
robert
5 months
always awesome to see glimpses into the future we’re building in case you missed it on Miami news this morning, a great segment that aired about Primer:
4
0
26
@roberttwestbury
robert
5 months
If you are working on an AI tutor (or other edtech product), we'd love to be your first customer @Primer . time, direct feedback from kids, etc. - DM me!
6
5
35
@roberttwestbury
robert
2 years
very excited about the team we're building 💥
@Primer
Primer
2 years
Building a brand new education system requires building a world-class team. We’re proud to welcome Lindsay, Jessenia, Joe, and Stephan to Primer!!
1
2
26
0
0
10
@roberttwestbury
robert
2 years
Subso has been one of the most influential experiences in my life, and today we’re sunsetting it. I think the last paragraph here perfectly describes how I feel right now:
Tweet media one
@subsoapp
Subso
2 years
We have made the hard decision to sunset Subso. Read our statement below:
4
1
11
4
0
30
@roberttwestbury
robert
10 months
working theory: the first Great Filter for edtech startups is getting exceptional educators and exceptional product leaders working well together. different walks of life, often near-opposite working & communication styles, etc. as always - lots of empathy and intentionality :)
0
0
23
@roberttwestbury
robert
7 months
Saturday evenings are for digging through GBs of buried state education reports so convoluted they make excel crash. 🫡 Illinois, in 2022: - 941 schools have less than 5% of students proficient in Math. - 658 schools have less than 5% of students proficient in ELA. - 53 schools
Tweet media one
Tweet media two
Tweet media three
Tweet media four
5
8
30
@roberttwestbury
robert
2 years
The ambitious energy kids have on Primer is unmatched.
@Primer
Primer
2 years
Only a few days into “Earth and Beyond,” our latest Science Fair theme, and we’re already seeing kids building solar panels, cryogenic fuel pumps, earth movement sensors, and… beyond. Here are some of our new scientists’ answers to why they decided to join the club.🧵
Tweet media one
4
3
31
0
0
11
@roberttwestbury
robert
3 years
Some really exciting things coming for @subsoapp soon — can’t wait to share it with everyone! For now, a little sneak peak of what’s making it all possible 👀
Tweet media one
3
0
23
@roberttwestbury
robert
10 months
🔜
Tweet media one
2
0
18
@roberttwestbury
robert
1 year
good afternoon
Tweet media one
4
0
25
@roberttwestbury
robert
2 years
Friday afternoon at the @Primer office, guess what’s going on
Tweet media one
6
0
25
@roberttwestbury
robert
9 months
sitting in an airport, listening to the live ATC Ground control, watching planes take off and hacking away on code is one of the purest forms of joy
1
0
23
@roberttwestbury
robert
10 months
zoom's AI companion meeting recap feature is pretty great:
Tweet media one
0
0
20
@roberttwestbury
robert
6 months
an average afternoon of Pursuits at Primer: - building 3d printers - designing clothes - doing self-directed chemistry - making music - learning new languages meanwhile most kids are on their 8th hour of busywork
Tweet media one
Tweet media two
Tweet media three
Tweet media four
2
2
25
@roberttwestbury
robert
4 months
Doing a Murph in SF tonight for Memorial Day - 6pm at the gym on Marina Green. Join me! Honoring Lt. Michael P. Murphy. All skill levels welcome
2
0
24
@roberttwestbury
robert
1 year
you're not "e/acc" unless your github looks like this
Tweet media one
2
11
22
@roberttwestbury
robert
6 months
Duolingo: - Exactly the type of co to crash post-2021 - Aggressively paused S&M, pulled back R&D soon after - Correctly Adjusted EBITDA Margin went from (22)% in late 2021 to a positive Q4 - Stock up 14% from its 2021 high - 8% (!) of revenue comes from an online English test
Tweet media one
Tweet media two
1
0
20
@roberttwestbury
robert
3 years
Hello SF! 🌁
Tweet media one
4
0
19
@roberttwestbury
robert
3 years
Growth hack: Get so good at Tetris you get on your airline’s global leaderboard, then set your name as the URL of your product 😎
Tweet media one
1
0
19
@roberttwestbury
robert
10 months
just wrapped up the final 2023 all hands at @Primer 2024 will be incredible. so much work to do 🫡
1
1
21
@roberttwestbury
robert
3 years
Woke up to Subso being #60 in social networking on the App Store 🤯
Tweet media one
1
0
19
@roberttwestbury
robert
11 months
Alpha in tracking down high pitched voice Minecraft Java tutorials from ~8-10 years ago and finding out where those kids are now
2
0
20
@roberttwestbury
robert
9 months
once you start seeing fragmented industries with unit economics that can be driven down by a near-OOM (+ an improved experience) through economies of scale it's hard to stop Housing -> @coverbuild Education -> @Primer so many sectors sitting duck. build!
1
1
19
@roberttwestbury
robert
9 months
2024 goals 1. win
0
1
19
@roberttwestbury
robert
1 year
Maybe the real superconductor was the friends we made along the way
4
0
19
@roberttwestbury
robert
1 year
Probably enough for 3 or 4 electron apps?
@natfriedman
Nat Friedman
1 year
Daniel and I have setup a cluster for startups:
Tweet media one
200
393
4K
2
0
18
@roberttwestbury
robert
3 years
Yeah IPOing is great, but have you ever tried a Philz Mint Mojito?
3
0
17
@roberttwestbury
robert
2 years
Some @Primer SF office upgrades
Tweet media one
3
0
17
@roberttwestbury
robert
1 year
Fun @subsoapp story: Our pubsub node (primary ingest service, handling ~4.5m pieces of content per day at peak) had a memory leak for years. I never added an autorestart cron since I didn't want to forget about it So I manually restarted it twice a day for 600+ days:
Tweet media one
Tweet media two
@Suhail
Suhail
1 year
If you don't have a single cron job or auto restart script your app is dependent on, you shipped too late.
19
14
222
2
2
16
@roberttwestbury
robert
10 months
❤️
@delk
Ryan Delk
10 months
Imagine getting stuck on a Scratch programming project as a third grader and @roberttwestbury comes to your desk to help you debug. @Primer Magic.
Tweet media one
3
3
42
0
0
16
@roberttwestbury
robert
3 years
3
1
15
@roberttwestbury
robert
8 months
tired of redesigning buttons for an enterprise saas app? we're hiring a Lead Product Designer to help rebuild the American education system. work with our Product and Education leaders to tell me and @bjoveski what to do! DMs open, or jobs @primer [dot]com
Tweet media one
2
5
16
@roberttwestbury
robert
1 year
Fun metric: every engineer at @Primer is responsible for ~1,000,000 kid minutes per month on our product
0
1
14
@roberttwestbury
robert
11 months
What % of revenue is deferred vs lost because of this?
Tweet media one
4
0
15
@roberttwestbury
robert
11 months
@AviSchiffmann Gotta skate to where the puck is going, not where it has been
1
0
13
@roberttwestbury
robert
1 year
🇺🇸
Tweet media one
1
0
15
@roberttwestbury
robert
2 years
Just in-case anyone was wondering what the future of cloud looks like:
@alistaiir
alistair
2 years
It takes 11 seconds to deploy persistent Redis on @joinhop , with private networking to your project (vpc)
16
10
95
1
1
12
@roberttwestbury
robert
2 years
sf symphony was world class. best way to spend a friday night funny how classical music sounds so good irl but so mid digitally
Tweet media one
1
1
13
@roberttwestbury
robert
2 years
@realGeorgeHotz @notcnrad same - it’s an important question
2
1
11
@roberttwestbury
robert
1 year
you're not "in the arena" you made a site for losers to vote on 170 ai generated women
0
0
11
@roberttwestbury
robert
4 months
We’re hiring someone to run the real estate function at Primer! You’ll own the entire real estate process for each new microschool: from the earliest conversations about new market expansion to delivering a fully-approved space ready for students on the first day of school.
1
2
12
@roberttwestbury
robert
1 year
The last web3 billboard on my commute is gone as of today 🫡
1
0
10
@roberttwestbury
robert
1 year
the only goal is to be the cleo of engineering
2
0
10
@roberttwestbury
robert
2 years
@awazels @delk @Primer this means a lot, thanks adam!
1
0
10
@roberttwestbury
robert
3 years
@agazdecki @AshokNellikar @PaulYacoubian @ctjlewis @anothercohen I’m 15 and I’m cringing at how childish this entire thread is
0
0
8
@roberttwestbury
robert
2 years
OH during a family interview: “Can parents join @Primer too?”
1
1
9
@roberttwestbury
robert
1 year
Latest addition to the office: (also - forgot how fun pulley problems are)
Tweet media one
3
0
10
@roberttwestbury
robert
4 years
@FilippoFonseca Poimandres by @0xca0a , highly recommend
0
0
8
@roberttwestbury
robert
2 years
🤯 Interesting to see where this has gone! Pushed a couple updates since my tweet ~5mo ago but haven't focused on it too much
Tweet media one
@roberttwestbury
robert
3 years
🏋️‍♂️ Quick weekend side project: An app that helps you manage progressive overload in the gym - felt great to work on mobile again!
Tweet media one
Tweet media two
6
8
70
0
0
9
@roberttwestbury
robert
1 year
The ideal candidate is a full-stack, staff-level generalist with early startup experience based out of the SF Bay Area. We are doing a lot, and you will too. Expect to own entire parts of our product, be pivotal on going 0-1 on our engineering org and take on a 2^10 things that
1
0
9
@roberttwestbury
robert
1 year
1) What
Tweet media one
2
1
10
@roberttwestbury
robert
2 years
pretty strong conviction that chatgpt is going to cause avg tweet quality to drop >2x over the next 12 months
Tweet media one
Tweet media two
Tweet media three
2
0
7
@roberttwestbury
robert
3 years
@julianlehr sounds a lot like @wander to me!
1
0
8
@roberttwestbury
robert
10 months
@drgurner I think the sub-point is "hard days" happen more when you're not obsessed. easier to default back to complacency when you're not always fired up
1
0
5
@roberttwestbury
robert
1 year
One of the (many) reasons today was a good day for @Primer engineering:
Tweet media one
Tweet media two
1
0
8
@roberttwestbury
robert
11 months
If you're tired of your B2B SaaS revops role :)
@delk
Ryan Delk
11 months
We're hiring for a Growth Ops role at @primer . Process + systems + ops to create more leverage within our admissions engine. We grew 5x yr/yr this year, similar goals next year. Reports directly to @DavidCavise , will work closely with me. DM's open.
2
6
47
1
0
7
@roberttwestbury
robert
2 years
what’s the loss function of mammals?
1
0
6
@roberttwestbury
robert
2 years
related: if you want to work with the nicest e2e typescript/graphql setup you’ve ever seen, we’re hiring:
0
0
6
@roberttwestbury
robert
2 years
Most popular Rippling support articles right now. Sending nothing but love to all founders making incredibly difficult decisions in the next 72h. ❤️
Tweet media one
1
0
5
@roberttwestbury
robert
2 years
We use Relay for all of our product @Primer . Incredible and massively underrated piece of technology - adoption is a pain and docs aren’t perfect, but once in place is a dream to work with.
1
0
4
@roberttwestbury
robert
1 year
@delk He's in an exit row aisle seat. I’m in the middle seat behind him. Assume he wouldn’t take my capital 😞
0
0
3
@roberttwestbury
robert
3 years
@driaug_ @aabbccsmith @benjaminakar @hiettdigital Exactly what @hiettdigital said. Getting stuff into production is the biggest thing. It doesn't matter if you don't think it's ready or the code isn't as clean as you want it to be - getting things out there is *so* important.
@hiettdigital
Scott Hiett
3 years
@driaug_ @aabbccsmith @roberttwestbury @benjaminakar Push stuff out into production. It’s cool to have lots of projects sat on your computer, but creating stuff that has users and anyone can use is next level.
1
0
2
1
0
5
@roberttwestbury
robert
3 years
@joeprkns @subsoapp Thanks for the shoutout!! 🚀
0
0
5
@roberttwestbury
robert
3 years
@the_jasonsamuel it's written in react native so soon! @devlooskie is helping me out with android since I don't have a physical android to properly test it out on :)
2
0
5
@roberttwestbury
robert
3 years
@aabbccsmith ok hear me out javascript but doesn’t
1
0
5
@roberttwestbury
robert
10 months
peace of mind hack: invest in solid e2e tests, run against prod on a regular cadence (we do every 30m at Primer) and hook up to pagerduty nice to know the second anything breaks i’ll know/be woken up, especially living in PT and running critical infra for ET schools
@acdlite
Andrew Clark
10 months
e2e tests continue to be underrated. Yes, they are slower to run than unit tests, and usually take longer to write, but a good e2e test lasts forever, no matter how often you change the implementation. It's the only kind of test I want to write anymore. It's worth the extra work.
64
131
1K
0
0
6
@roberttwestbury
robert
7 months
@m1guelpf @caseykcaruso yes! building brick and mortar tech enabled microschools @primer . currently 9 campuses all around FL & AZ -- lots more coming. @caseykcaruso , feel free to dm
1
0
4
@roberttwestbury
robert
4 years
@_jmiles i was looking through the react native android core tryna figure out how it identified duplicate resources, possibly one of the worst experiences of my life would not recommend
1
0
4
@roberttwestbury
robert
9 months
@alistaiir the frequencies are open (albeit heavily regulated)
0
0
4
@roberttwestbury
robert
1 year
@stevegraham @AdemoyeJohn Main piece it shows is work ethic imo. Underrated signal, don’t get why it’s controversial
2
0
3
@roberttwestbury
robert
2 years
was in the room for this convo. full college professor style, without an aide, for sixty 7 year olds. absolutely insane
@delk
Ryan Delk
2 years
If you’re curious about the state of some US public schools: I just spoke with a teacher who had *60* 2nd graders in her class last year.
4
1
18
0
0
4
@roberttwestbury
robert
3 years
@Delmo_dev Would apply but I still haven't gotten a good grasp on the radix based layer 2 load balancer blockchain caches (the multi AZ ones specifically) :(. Maybe next time
0
0
4
@roberttwestbury
robert
4 years
@driaug_ Can you stop subtweeting me
0
0
4
@roberttwestbury
robert
3 years
@m1guelpf gm miguel give me a week and i’ll have a testflight
1
0
4
@roberttwestbury
robert
3 years
@aabbccsmith @freezydorito @hiettdigital z-index: 100; Train is now flying
1
0
4
@roberttwestbury
robert
3 years
@devlooskie @hiettdigital can you confirm your bank details? thanks for the ad x
0
0
3