The build log
Notes from the foundry.
Essays, build logs, and engineering notes from building small products that run 24/7.
Featured · Guides
The dynamic OG image API: on-brand social cards from a single URL
What a dynamic OG image API is, how it works, when to use one instead of rolling your own with Vercel OG, and how to ship your first card in about a minute with Cardstock.
Build logs 
My bookmarks folder is where good ideas go to die
Products 
Context Engineering Playbook
Products
Idea Harvester
Engineering 
Building atomic24.com: a foundry needs a storefront
Build logs 
How we ship: one founder, a fleet of agents
Build logs