Theo - t3․gg
Software dev, AI nerd, TypeScript sympathizer, creator of T3 Chat and the T3 Stack.
gpt-5.4 is really, really good
The video provides an in-depth take on GPT-5.4 thinking, covering what’s new, how it performs across benchmarks, pricing, frontend and browser capabilities, and practical usage notes including prompts, safety, and UI tooling.
Are you f**king kidding?
The video contrasts nostalgic views of early computing with current software policy trends, arguing that state level age verification laws threaten open source and developer workflows, and urging civic action to influence policy and educate lawmakers.
I can't take it anymore.
The video is a passionate, multi point critique of Apple's software, policies, and ecosystem, mixing personal experiences with broader comparisons to Android, Linux, and third party tools to argue for more openness and better software practices.
Google got forced to open up Android
The video surveys the evolution of app stores and payment fees, contrasts Apple/Google control with Android openness, and passes through the Epic versus Apple/Google battles to explain how new policies aim to increase developer choice and lower costs, ending with a cautiously optimistic view of a more open Android future.
So I stopped using Ghostty...
A creator compares his long history with terminal tools, introduces Semox and CMUX as a new multi-project workflow, and argues for an integrated, ultra-fast terminal UI approach that embraces parallel work across tools and projects. He envisions a future where tooling is more cohesive and customizable, while acknowledging current limitations and opportunities for improvement.
Open source is dying
The speaker argues that open source is being strained by AI and escalation in PRs, calls for better support and etiquette for maintainers, and outlines practical ideas like Vouch and the Open Source Pledge to sustain the ecosystem. He emphasizes kindness, sustainable funding, and tooling to reduce burnout while preserving open collaboration.
You don't want to be a manager.
The video debates whether software engineers should pursue management or stay as ICs, arguing that management brings both risk and reward, and emphasizing strong communication and continuous skill growth regardless of ladder. It also reviews ladder dynamics, compensation realities, and practical tips for navigating career moves in a changing tech landscape influenced by AI and new tooling.
Vercel accuses Cloudflare of stealing
The video explores the Just Bash project, comparing Versel and Cloudflare approaches to running bash like environments for AI agents, and delves into the related drama around forks, security issues, and community ethics. It also weaves in broader context about open source etiquette and how architecture choices affect security and usability.
I did not expect this...
The video explores Vit Plus, an open source, unified tool chain around Vit, and the creator’s hands-on exploration of adopting it, including setup, localization features, development workflows, and real-world tradeoffs.
I'm not scared of Anthropic.
The video explains T3 Code's Claude Code integration, the open source stance, and the practical implications for users, including policy cautions, sponsorships, and performance improvements. It also discusses the subsidization model and the uncertain regulatory landscape, with guidance on how to navigate potential risks.
Everything needs to change
The video traces the rapid evolution of coding tools from simple editors to modern, multi component IDEs and argues for a bigger, more integrated environment that can orchestrate multiple codebases, browsers, terminals, and agents. It also presents a forward looking view where editors are deeply interconnected with coding workflows and explores examples like Kernel and T3 code to illustrate how future tooling might work.
Did Cursor really just rebrand Kimi???
The video analyzes Cursor's Composer 2 and the Kimmy K2.5 openweight model, exposing licensing and post-training dynamics, the economics of subsidy pricing, and the implications for openweight models in the AI ecosystem.
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