Notes from the build.

Developer notes, findings, and code snippets. Mostly things I learned the hard way.

SHIPSep 04 202614 min

Signing a PDF Without Destroying It

Every free PDF signer rebuilds your contract into a new file. I wrote a PDF parser and an incremental-update writer so the original bytes survive, and then spent a day on an off-by-one that a helpful library had been hiding from me.

pdfjavascriptbrowsercanvasreverse-engineering

SHIPMar 22 20265 min

Turning Any Web Service Into a Programmable API for LLMs

Every web application is already an API — your browser proves it every time you click a button. Here's how you can reverse-engineer any web service into a clean, programmable interface that AI agents can use autonomously.

reverse-engineeringapi-developmentllm-toolsmcpai-agentsweb-automationpython