Peter Steinberger is an Austrian programmer who built two very different careers out of the same instinct: when a tool he wants doesn't exist, he prompts or codes it into existence. The first produced PSPDFKit, a bootstrapped document-tooling company whose SDKs ended up inside apps used by nearly a billion people. The second produced OpenClaw — the open-source personal AI agent that went from a weekend hack to one of the fastest-growing projects in GitHub history and carried him back from retirement into a job at OpenAI.

## From rural Austria to the iOS frontier

Born May 22, 1986 and raised in rural Austria, Steinberger has said he became obsessed with computers at fourteen, when a summer guest introduced him to a PC. He studied software engineering at TU Wien and, around 2009–2010, became an early iOS developer — his first app was a client for a dating website, built by scraping its HTML after the mobile web version ate a long message he had written. Fortune's profile reports that he worked as a senior iOS engineer in Silicon Valley and later taught mobile development back at his alma mater. Along the way he became a fixture of the iOS community: a prolific technical blogger, open-source contributor, and conference speaker whose speaking history he still keeps on GitHub.

## PSPDFKit: the bootstrap

PSPDFKit grew out of his own iOS PDF framework work around 2010–2011 — the name is literally his initials plus "PDF kit." Martin Schürrer joined him early, and in 2014 their American lawyer Jonathan Rhyne left legal practice to become the third co-founder and eventual CEO. The company stayed bootstrapped, profitable, and remote-first long before that was normal — proposal-driven development, release trains, Slack-triggered release bots — while its SDKs quietly powered viewing, annotation, signing, and form-filling inside apps from Dropbox, DocuSign, SAP, IBM, and Volkswagen.

On October 1, 2021, PSPDFKit announced its first outside money: a strategic growth investment of more than €100 million (about $116 million) led by Insight Partners, with Insight's Ryan Hinkle joining the board. Steinberger sold most of his shares in the deal and stepped away from full-time work; his about page describes the arc as bootstrapping the company "to a nine-figure exit." The company later tripled revenue, absorbed acquisitions including ORPALIS, Aquaforest, Muhimbi, and Integrify, and rebranded as Nutrient in October 2024.

## Burnout, retirement, and the return

The exit came at a personal cost he describes unusually candidly. After roughly thirteen years of pouring "200%" into the company he was "very broken"; he booked a one-way ticket to Madrid and spent about three years outside the industry — therapy, travel, and what he calls hunting hedonic pleasures while carrying an emptiness around. The turn is documented in his June 2025 essay "Finding My Spark Again": building had always been the thing that gave him joy, and AI had finally become interesting enough to pull him back. What followed was a prolific open-source streak — VibeTunnel, Peekaboo, Vibe Meter, Poltergeist, Demark, llm.codes, stats.store — and a run of essays on what he calls agentic engineering, written while directing multiple coding agents in parallel.

## OpenClaw and the agent wave

In November 2025 he hacked together a weekend project — originally a "WhatsApp Relay" — released as Clawdbot: an agent that runs on your own machine and does things for you through WhatsApp, Telegram, Discord, and other chat apps. "I was annoyed that it didn't exist, so I just prompted it into existence," he told Lex Fridman. Two months later it had over 100,000 GitHub stars and 2 million visitors in a single week; by mid-February 2026 it was past roughly 180,000. The name went through its own saga: Anthropic's legal team objected to "Clawd," a 5am Discord brainstorm produced "Moltbot," and on January 29, 2026 he announced OpenClaw — trademark-checked this time, lobster mascot intact. The frenzy spawned community offshoots like Moltbook, an agent-only social network, and ClawCon meetups in dozens of cities.

On February 15, 2026, he announced he was joining OpenAI — after a San Francisco week talking to the major labs, and reportedly turning down Meta — because it was "the fastest way" to bring his vision to everyone. OpenClaw would stay open under an independent foundation, which formally launched July 8, 2026 as a US 501(c)(3) with OpenAI, NVIDIA, Microsoft, Red Hat, Tencent, and the University of Michigan among its backers; inside OpenAI he leads Claw Labs and works on "the next generation of personal agents." His stated bar for success: an agent even his mum can use.

## What he believes

The through-line is personal agency over software. "Your assistant. Your machine. Your rules." — AI that answers to you, runs where you choose, and holds your keys and data, with the foundation positioned as neutral ground, "the Switzerland of AI." He expects agents to replace most apps outright. He is equally insistent that working this way is a craft: "vibe coding," he argues, has become a slur that hides a real skill — closed loops where the agent verifies its own work, parallel sessions, judgment instead of typing. He ships code he hasn't read because "most code is boring," and he rebranded the pull request as the "prompt request." And he is blunt about geography: Europe's regulation-first culture, he says, stifles this kind of ambition — one reason he now lives in San Francisco.

## What the record does not settle

The seams are mostly in dates and superlatives. PSPDFKit's founding year is variously 2010, 2011, and "beginnings in 2011" with code from 2009. His full exit is pinned only loosely between the October 2021 deal and "about three years" of retirement described in early-2026 interviews. OpenClaw's GitHub ranking is claimed as both "most-starred" and "fastest-growing" depending on the source. And the exact shape of his OpenAI mandate — beyond personal agents and Claw Labs — has not been publicly detailed.

*This index was compiled from public sources and does not imply the subject's endorsement. Citations live in the packet's source catalog.*