Been playing with Vercel Drive this week and I keep wondering... did Vercel just ship Durable Objects? Hear me out - Create a named drive, attach a sandbox, and you’re guaranteed only one active instance is ever touching that state. Write a program around that and you start tapping into the exact programming model that makes Durable Objects so good. It's a fun inversion of roles. You stop thinking of a drive as something you attach to a sandbox. Make the drive the main character, and attach a sandbox to bring its state to life. I tried replicating an agent substrate demo I had built before using Vercel Drive, and really like how it feels. e.g. take Pi Durable. Pi checkpoints each step to a SQLite file on the drive. When the sandbox stops, even mid-turn, state in the drive is durably stashed away, and you can later attach a new sandbox to pick up the conversation right where it left off. Reminds me of when I first learned about Durable Objects and how it warped my mind a bit. Can't wait to play around with this more.

Great release from fx. Between this and Pi Durable few weeks ago, feels like we are getting a glimpse of what agent SDKs and infra are converging towards. Running fx on Agent Substrate was super smooth. Event streaming in fx in particular was really cool. Excited to see what's coming next.