I work on Grok products and agents at SpaceXAI. My thing is the infrastructure that runs untrusted AI agents safely, at scale: sandboxing, isolation, and the boundary between an agent and everything it could reach.
work
spacexai current
working on grok products and agents
browser use 1.5k+ prs
the way AI uses the web. i owned the cloud infra behind it.
write-it-down.com 2.6k users
simple personal finance tracker
port-whisperer ★ 864
a beautiful cli to see what's running on your ports
decks
writing
my longest-running side project is a google sheet
tracking every dollar manually in a google sheet since 2020
how we built secure, scalable agent infra on aws
millions of untrusted agents, each in a private micro-vm with zero credentials
everything i got wrong in the last 4,000 commits
every mistake from a year as the first engineer at browser use, in chronological order
a production architecture for the browser use library
save state, re-queue, restore state. surviving the lambda timeout without losing a run
how we built secure, scalable agent sandbox infra
from aws lambda to unikraft micro-vms with a control plane architecture
currently
locationsan francisco bay area, us
shippinggrok products and agents at spacexai
readingkvm, vmms, and where the isolation boundary actually sits
in the bay? coffee.
always down to meet people building interesting things. agent infra, sandboxing, isolation, open source, startups.
larsen@cundric.com →