Things I’ve built outside the day job. Some are for local businesses, some are just for me.

Client websites

Sites I’ve designed and built for small businesses.

  • client
    My Balloon Era

    Site for a balloon-décor business in Cedar Rapids and Iowa City: services and pricing, a gallery of installs, and booking.

    myballoonera.com

Run a small business and need a site? Email me at james.penning@icloud.com, or find me on LinkedIn or X.

Side projects

Experiments I host on subdomains of jamespenning.dev. I write about how they’re built on the blog.

  • live
    Lines

    A read-only dashboard for my sports-betting model. NFL, college football, NBA and college basketball: the week's games, what clears the bar, and how the model is doing.

    lines.jamespenning.dev