James Ide

Co-founder @Expo

[James Ide @JI]

Expo’s Series B lets us build

+ More developer success for our world-class customers
+ More products to unlock that success
+ More capacity to meet the demand for our products and services

We are also excited to continue collaborating with other great companies, and for the Expo SDK and services to work well with even more libraries, products, and integrations from others. We care and work to be a great partner to great partners.

I’m proud of what we’ve built, from what started in a room w/@ccheever and is now a global team over 60 people strong.

This is an energizing time to be at @Expo!

[Expo @expo]

🙌 Expo is the best it's ever been, and it's about to get a lot better.

We raised a Series B so we can go faster on the things that matter to you: faster builds, smoother native integrations, and the services to make end-to-end app development a delightful experience.

There is a lot of work to do. This round led by @Georgian_io puts us in position to go do it!

[James Ide @JI]

@callmidavid @expo Hi - it looks like this job could have been waiting for other jobs of yours that hit your concurrent job limit.

You can turn on email notifications for build jobs at https://t.co/QchFXCc5w5

[James Ide @JI]

I took several CS courses with Garcia and he was always fair and generally liked, and was especially passionate about getting more students excited about CS. He started CS10 as a super-intro course for people with no programming experience. This was about 15 years ago and the instructors now must be well calibrated on homework and exam difficulty.

The lower-division CS courses are graded on a fixed scale out of 300 points with cutoffs set at the start: say, 295/300 points for A+, 285 for A, etc. This is what the professors mean by, “Everyone can get an A.” That said, they would sometimes offer extra credit when the class on average did poorly on the last midterm, or ramp up the difficulty if the class was doing better than others.

However, I suspect the performance of CS10 students has actually dropped if the failure rate has jumped from 7% to 35%. CS10 is a mature class taught by very seasoned instructors who generally want students to succeed.

Students’ using LLMs to do homework without actually learning is probably the main cause. A secondary reason could be many of the most undecided yet ambitious students who would have explored CS in the past for career reasons are now majoring in business/pre-med/pre-law, while those who are hardcore about CS skip CS10. To the original point, I think these instructors are grading in good faith given what I know and the stats are worth investigating.

[James Ide @JI]

@wwwjim @expo @CascadiaJS 💙

[James Ide @JI]

@0xmaz_ @expo This incident is closed. The DC’s network is fully operational.
The backlog of customer iOS builds and macOS CI/CD workflow jobs was completely processed a little above an hour ago. The free queue is estimated to be fully processed in less than an hour.

[James Ide @JI]

The iOS build & submission queues and macOS CI/CD queues are running again, at about 2x the throughput compared to before the incident. This means your jobs should run soon.

The data center provider says the network is partially restored and they’re continuing to work on the issue. We will actively watch metrics from our side while our data center provider’s incident is still open.

[James Ide @JI]

@AddictedToUFOs @0xmaz_ @expo (Confirmed)

[James Ide @JI]

Confirming w/the team but I believe you will keep your queue position since the root cause is preventing jobs from being dequeued. This means a large backlog of jobs to process. We significantly increased our iOS build capacity last week and I am optimistic we can process the weekend backlog at a healthy speed.

[James Ide @JI]

@0xmaz_ @expo Yes, we will cover this in a postmortem.

[James Ide @JI]

@AddictedToUFOs @0xmaz_ @expo We are monitoring the data center who is working on this, and when they report availability we are on deck to make sure our systems come back as soon as possible.

[James Ide @JI]

@Baconbrix Thank you for being a part of Expo these past nine years. I admire how hard you've worked and how hard you've cared this whole time. You are special and have accomplished so much, and it's been an honor working together. Keep on keeping on. We'll miss you!

[James Ide @JI]

@wzulfikar @expo Good news is this makes it a lot easier to one-shot with the right prompt 🙂
Will talk to the team about adding guidance for controlled components to Expo Skills

[James Ide @JI]

We got controlled text inputs before GTA 6

[Expo @expo]

Expo UI now runs callbacks on the UI thread.

SDK 56 ships first-class worklet integration for @expo/ui. SwiftUI and Compose components update shared state synchronously, no hop to JS.

Flicker-free input masking, finally. A credit card field formats 𝟺𝟸𝟺𝟸𝟺𝟸𝟺𝟸𝟺𝟸𝟺𝟸𝟺𝟸𝟺𝟸 into 𝟺𝟸𝟺𝟸 𝟺𝟸𝟺𝟸 𝟺𝟸𝟺𝟸 𝟺𝟸𝟺𝟸 on the same frame the keystroke lands.

Full blog post below from @nishanbende ↓

[Chain React (July 30–31, 2026) @ChainReactConf]

🎤 Announcing: Charlie Cheever

If you're in tech, you know @ccheever.

Charlie's the co-founder of @expo and one of the biggest driving forces behind React Native!!

He's speaking at Chain React in Portland and we want to see you there!

🎟️ https://t.co/8xYUt8ELCF

[Christian Falch @chrfalch]

Looking forward to start talking more about the SPM transition in React Native. It’s going to be big. #appjsconf

[James Ide @JI]

@sethwebster So great to have you here Seth!

[James Ide @JI]

The Codex plugin for @Expo is now available for everyone!

Run "/plugins" in Codex CLI and just search for Expo

[Thomas Ricouard @Dimillian]

Launched that today! Thanks @Baconbrix and team for reviewing!

[James Ide @JI]

@yehiaabdelm @expo @tsapeta @sethwebster @Meta Chad Developer Evangelist

[James Ide @JI]

@theo Incidentally a similar path is how GCP became a cloud provider I can’t recommend anymore despite using them.