hdrcheck
A no-deps SPDX header check. Paste a file in the browser, or run the same logic from a Python CLI.
How it works →Sites, apps, stubborn tools
Need a page, a product, or a checker that saves you a morning?
I build them. Fast pages, small apps, scripts with no leftover template junk. The work is real — you can use a tool on this site right now.
On the bench
Three things I actually made. No invented clients.
Census 2025 counties
A local card plus a browser lookup of all 3,222 counties from the U.S. Census Bureau national gazetteer. Public domain. Cite the source.
See the card →The shop itself
Static HTML and CSS, one small script, Cloudflare Pages. The thing you’re reading is also the work.
About the build →What I take on
Websites
Landing pages, docs, little shops. Tight type, no leftover template junk.
Apps
Browser apps and small utilities. If you can describe it, I can usually stand it up.
Custom tools
Checkers, converters, dataset cards, automations. The unglamorous stuff that gets used.
Try one
Two tools run in your browser. Nothing is uploaded.