@BrandonMathis

Engineering Lead at @ThisDotLabs Find me coding on TikTok https://xitter.cf/t.co/NHnclu1RM8

 Raleigh NC
brandonmathis.me
Joined August 2008
  • Tweets11.5K
  • Following543
  • Followers626
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Centro LEAKS
@CentroLeaksOct 22
BREAKING: SWITCH 2 HAS BEEN HACKED (BY AI!), FIRST JAILBREAK RELEASED
pepsipu@pepsipuOct 22
i jailbroke the nintendo switch 2 so i modded cinnamoroll, peter griffin, hatsune miku, and more into Mario Kart World, a switch 2 exclusive now watch my friends and i get cooked by bots learn more and get the exploit pepsipu.com/blog/2026-10-swi…
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Danil Ishutin
@DendiBossOct 15
Apparently this is where the AI era started 😅 If I had beaten that bot in 2017, maybe the world would be a very different place now I had a chance to stop AI, but …
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Tracy Lee | ladyleet
@ladyleetSep 29
State of React Native is tomorrow at 12:30 PM ET. Hear from @ccheever of @expo, @mazenchami and @GantLaborde of @infinite_red, @BrandonMathis of @ThisDotLabs, Rafael Mendiola of @okthinkai, and Jacob Krupski of @maestro__dev. RSVP: luma.com/f8tzy15t
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APAJI@apaji_xSep 17
BREAKING: ADHD researchers confirm that having "one single appointment" at 3:00 PM successfully destroys the entire day leading up to it. 1/6
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Rob Ocel@robocellAug 28
Annual reminder that the mobile web is unusable
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Tracy Lee | ladyleet
@ladyleetAug 20
#ReactNative is not a one-time architecture decision. It is a set of tradeoffs teams revisit as apps, tooling, and platforms change. Explore the real-world choices with our panel on September 30th: luma.com/f8tzy15t Featuring @GroundControl, @ccheever, @mazenchami, @GantLaborde, & @BrandonMathis!
🤖 Made with AI
Alt text: Black-and-white comic-style poster for “State of React Native,” hosted by This Dot Labs and Infinite Red. The event is Wednesday, September 30, 2026, from 12:30–2:30 ET. Five illustrated speakers are featured: Rafael Mendiola, Charlie Cheever, Mazen Chami, Gant Laborde, and Brandon Mathis. RSVP: tinyurl.com/stateofreactnativesept26.

ALT Alt text: Black-and-white comic-style poster for “State of React Native,” hosted by This Dot Labs and Infinite Red. The event is Wednesday, September 30, 2026, from 12:30–2:30 ET. Five illustrated speakers are featured: Rafael Mendiola, Charlie Cheever, Mazen Chami, Gant Laborde, and Brandon Mathis. RSVP: tinyurl.com/stateofreactnativesept26.

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Tracy Lee | ladyleet
@ladyleetAug 12
What does it take to keep a React Native app healthy after launch? @GroundControl, @ccheever, @MazenChami, @GantLaborde, and @BrandonMathis will compare notes on Sept. 9. 12:30–2:30 PM ET. Save your spot: luma.com/f8tzy15t
Black-and-white illustrated event poster for “State of React Native,” presented by This Dot Labs and Infinite Red. Features five speakers—Rafael Mendiola, Charlie Cheever, Mazen Chami, Grant Laborde, and Brandon Mathis—against a space-themed background. Event details: Wednesday, September 9, 2026, 12:30–2:30 ET; RSVP at tinyurl.com/stateofreactnativesept26.

ALT Black-and-white illustrated event poster for “State of React Native,” presented by This Dot Labs and Infinite Red. Features five speakers—Rafael Mendiola, Charlie Cheever, Mazen Chami, Grant Laborde, and Brandon Mathis—against a space-themed background. Event details: Wednesday, September 9, 2026, 12:30–2:30 ET; RSVP at tinyurl.com/stateofreactnativesept26.

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This Dot Media
@ThisDotMediaAug 5
Replying to @ThisDotMedia @OpenAI @BrandonMathis
youtube.com/watch?v=SkXFlUZT…

OpenAI GPT Sites: The Easiest Way to Deploy AI Apps

OpenAI's new GPT Sites feature makes it possible to go from an idea...

youtube.com
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Matt Rubens
@mattrubensJul 31
Very excited to publicly launch @roomote! I’ve spent the last year deeply immersed in cloud agents, and it’s become very clear to me that: 1) Everyone will be relying heavily on cloud agents soon (and hopefully closing their laptops all-the-way). 2) It’s critical to have the flexibility to use both closed weight and open weight models (including local models as they get easier to run), bring your existing subscriptions, run on your own infrastructure, etc. 3) As tempting as it can be to build a cloud agent framework yourself, I can vouch that it’s still very hard to do well while keeping up with how fast the industry is moving. So we built Roomote - a source-available, model-agnostic, self-hostable cloud agent platform. We think it’s the sweet spot between using a closed provider and committing to building and maintaining the system yourself. Would love any and all feedback! More 👇
Matt Rubens
@mattrubensJul 30

Don't let someone else own your software factory.

Article · @mattrubens
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Tracy Lee | ladyleet
@ladyleetJul 30
Loving the vibes and seeing old and new faces at @ChainReactConf! @ThugDebugger @grabbou @BrandonMathis @saltnburnem @GantLaborde @jherr @infinite_red
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This Dot Labs
@ThisDotLabsJun 18
What if the most important #AI tooling decision isn't which model you use? @BrandonMathis argues it's the harness around the model. After more than a year with @Claudeai Code, he started exploring #Pi and found that control, customization, and extensibility mattered more than he expected. In this demo, he walks through the switch, the tradeoffs, and why open coding agents are gaining attention. Watch the full breakdown: youtube.com/watch?v=Sphk79pi…
Promotional YouTube thumbnail featuring a smiling man wearing glasses and a patterned black shirt, standing with arms crossed against a colorful abstract background. The left side displays a stylized “Pi” logo with icons and text highlighting “Open Source,” “Plugins,” and “Model Switching.” Large headline text reads: “Why I Quit Claude Code for Pi!” Additional text on the right reads: “Exploring the Ultimate Coding Agent.” The design uses bold white, yellow, and orange typography on a dark geometric background.

ALT Promotional YouTube thumbnail featuring a smiling man wearing glasses and a patterned black shirt, standing with arms crossed against a colorful abstract background. The left side displays a stylized “Pi” logo with icons and text highlighting “Open Source,” “Plugins,” and “Model Switching.” Large headline text reads: “Why I Quit Claude Code for Pi!” Additional text on the right reads: “Exploring the Ultimate Coding Agent.” The design uses bold white, yellow, and orange typography on a dark geometric background.

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Tracy Lee | ladyleet
@ladyleetJun 10
Afternoon with @robocell @BrandonMathis @jonfontanez @ElliottFouts
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Alberta Tech
@albertadevsJun 2
BREAKING: CEO discovers tokens cost money
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Tracy Lee | ladyleet
@ladyleetMay 29
A lot of the conversation around coding agents focuses on the model. The harness layer is just as important. It’s what controls tools, execution flow, permissions, and the structure around how agents actually operate. Really solid breakdown of how systems like @Claudeai Code and #Codex work under the hood. Review the anatomy of a harness with @BrandonMathis. Link in bio!
Alt text: Promotional graphic for a This Dot Labs video titled “This Dot AI Field Notes: Anatomy of a Coding Harness.” A blue technology-themed background features circuit patterns, code snippets, and workflow diagrams. On the left, a man with glasses and a beard speaks into a microphone while gesturing with one hand. On the right, an illustrated diagram shows connected AI workflow components leading into a software interface panel. The This Dot Labs logo appears in the bottom-right corner.

ALT Alt text: Promotional graphic for a This Dot Labs video titled “This Dot AI Field Notes: Anatomy of a Coding Harness.” A blue technology-themed background features circuit patterns, code snippets, and workflow diagrams. On the left, a man with glasses and a beard speaks into a microphone while gesturing with one hand. On the right, an illustrated diagram shows connected AI workflow components leading into a software interface panel. The This Dot Labs logo appears in the bottom-right corner.

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This Dot Media
@ThisDotMediaMay 28
Walk through how tools like @claudeai Code and Codex actually operate under the hood, including how the harness manages tool access, file operations, execution loops, and deterministic control around the #LLM with @brandonmathis. thisdot.co/blog/this-dot-ai-…

This Dot AI Field Notes - Anatomy of a Coding Harness - This Dot Labs

A coding agent is not magic, it’s a loop. We call this a harness. The harness is a deterministic layer of code that wraps an LLM.

thisdot.co
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Ben Lesh
@BenLeshMay 26
1/ At @ThisDotLabs, I built a Codex Plugin, called Build Web Data Visualization with DevEx Lead @coreyching from OpenAI. With this plugin, Codex uses image gen to design the app and then implements it really well. See the examples below. Claude can’t do this!🧵
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This Dot Media
@ThisDotMediaMay 19
Running coding agents remotely in the cloud starts to feel very different from traditional #AI-assisted development. @BrandonMathis shows how @claudeai Code can run entirely in the cloud, connect directly to repos, execute workflows remotely, and open PRs without touching your local machine. Really interesting glimpse into where asynchronous agent workflows are heading. Endless #AI enablement insights on our YouTube channel: youtube.com/@ThisDotMedia
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Mario Zechner
@badlogicgamesMay 13
People of pi.dev. Do not install.by via any method other than what's shown on the website and in the docs. E.g. we do not publish to brew and never will. Someone else did. We have zero control over what goes into the brew release.

Pi Coding Agent

A terminal-based coding agent

pi.dev
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This Dot Media
@ThisDotMediaMay 4
A lot of teams are running into the same issue with #AI-assisted development right now: The agent can generate code quickly, but reliability starts breaking down when non-deterministic systems are handling deterministic work. @BrandonMathis and Coston Perkins unpack where agents actually fit into modern engineering workflows, and where teams should be leaning more on scripts, validation tooling, CI pipelines, and repeatable automation. They cover: • The difference between agents building workflows vs becoming the workflow • How deterministic systems reduce hallucinations and hidden failures • Real examples involving database migrations, CI automation, financial reporting, and code cleanup Check it out: youtube.com/watch?v=o3pOb98E…
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Barack Obama
@BarackObamaApr 29
Today’s Supreme Court decision effectively guts a key pillar of the Voting Rights Act, freeing state legislatures to gerrymander legislative districts to systematically dilute and weaken the voting power of racial minorities - so long as they do it under the guise of “partisanship” rather than explicit “racial bias.” And it serves as just one more example of how a majority of the current Court seems intent on abandoning its vital role in ensuring equal participation in our democracy and protecting the rights of minority groups against majority overreach. The good news is that such setbacks can be overcome. But that will only happen if citizens across the country who cherish our democratic ideals continue to mobilize and vote in record numbers - not just in the upcoming midterms or in high profile races, but in every election and every level.
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