The programmable hub for your specs. Centralized, structured, and API‑ready so your team and your AI tools always work from the same source of truth.specstack.xyzJoined December 2025
Meet Spec Stack ⚡️
It's the developer first hub for your requirements, RFCs, and architecture designs. Markdown-native, lightning-fast, and fully programmable.
Check it out! 👇
Introducing USVC - a single basket of high-growth venture capital, for everyone.
No accreditation required, SEC-registered, and a very low $500 minimum.
Includes OpenAI, Anthropic, xAI, Sierra, Crusoe, Legora, and Vercel. As USVC adds more companies, investors will own a piece of that too.
Liquidity typically comes when companies exit, but we’re aiming to let investors redeem up to 5% of the fund every quarter. This isn’t guaranteed, but if we can make it work, you won’t be locked up like in a traditional venture fund.
It runs on AngelList, which already supports $125 billion of investor capital.
And I’ve joined USVC as the Chairman of its Investment Committee.
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Go back to the 1500s, you set sail for the new world to find tons of gold - that was adventure capital.
Early-stage technology is the modern version. It says we are going to create something new, and it’s risky. It’s daring.
But ordinary people can’t invest until it’s old, until it’s no longer interesting, until everybody has access to it. By the time a stock IPOs, most of the alpha is gone. The adventure is gone. Public market investors are literally last in line.
This problem has become farcical in the last decade. Startups are reaching trillion dollar valuations in the private markets while ordinary investors have their noses up to the glass, wondering when they’ll be let in.
Investing in private markets isn’t easy. You need feet on the ground. You need judgment built over years. Most people don’t have the patience to wait ten or twenty years for an investment to come to fruition.
But there is no more productive, harder-working way to deploy a dollar than in true venture capital.
USVC enables you to invest in venture capital in a broad, accessible, professionally-managed way, through a single basket of innovation, focused on high-growth startups, at all stages.
It is how you bet on the future of tech: the smartest young people in the world, working insane hours, leveraged to the max, with code, hardware, capital, media, and community. Your dollar doesn’t work harder anywhere.
There is an old line - in the future, either you are telling a computer what to do, or a computer is telling you what to do. You don’t want to be on the wrong side of that transaction.
USVC lets you buy the future, but you buy it now. Then you wait, and if you are right, you get paid.
Get access here:
usvc.com
New in Claude Code: /ultrareview (research preview) runs a fleet of bug-hunting agents in the cloud.
Findings land in the CLI or Desktop automatically. Run it before merging critical changes—auth, data migrations, etc.
Pro and Max users get 3 free reviews through 5/5.
Solar met 75% of global electricity demand growth in 2025. Clean power covered all new demand, so fossil generation didn’t rise for the first time since 2020.
Solar electricity is on track to become by far the biggest source of power.
Interrupting my holiday break to say: iOS 26 is bad. Worse. It's not just liquid glass. Everything is now one or more extra taps away. Actions buried. Keyboard downgraded. Siri is essentially dead. Apple undid years of good work.
If Sergey Brin stays I think Google
Because they have the chips, the servers, the models, the data and the end users
Nvidia only has the chips
Amazon only has the servers
Microsoft has the servers and the end users (more enterprise though)
Meta has the servers, some models (but not so good yet) and end users (see Instagram)
xAI has the servers, the models, the data (X) and the end users and soon has the chips too
Apple has only end users
Your specs shouldn’t live in random folders.
Spec Stack gives you one hub for every asset
Centralized. Shareable. API‑ready.
Built for teams shipping in the AI era.
One source of truth. One API. Faster execution.
Here’s what teams are doing with Spec Stack:
• Auto‑generate UI components from design‑system specs
• Inject requirements into AI coding assistants
• Sync product briefs into CI/CD
• Share specs with stakeholders via secure public links
Specs shouldn’t be static.
I built Spec Stack because I was tired of:
• digging through Notion
• outdated Google Docs
• specs lost in Slack
• AI tools hallucinating because context was garbage
So we built a programmable spec hub — one place where your product truth actually lives.
Developers don’t want more docs.
They want structured context their tools can actually use.
Spec Stack stores specs as structured data — not blobs.
Feed them into CI/CD, agents, or your coding assistant.
This is how teams ship faster in the AI era.
Most teams don’t fail because of bad code. They fail because the spec lived in 12 places. Spec Stack fixes that.
One hub → human‑readable, AI‑ready specs → programmable via API.
Your ideas deserve a single source of truth.
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