This is a very specific solution, to a very specific problem. The TAM is maybe a few dozen to a few hundred people globally. This is a story about why coding agents are magical 🧙♂️.
I’ve been enjoying the web through RSS for a long time—it makes for such a wonderful reading experience, and NetNewsWire has been my trusted feed reader for most of that journey. I follow hundreds of feeds from all kinds of amazing creators covering software, design, woodworking, photography, and whatever else catches my eye. If you care about something, chances are someone out there is writing about it passionately! Plus, nothing is filtered or sorted by an algorithm—just a nice, simple reverse chronological feed.
The other half of my reading happens on a reMarkable 2 tablet, which is easily my favorite device for reading and jotting down notes. While I don’t need every feed sent there, I love being able to pick my favorite articles to read on its beautiful, highly legible, matte display.
ReMarkable offers a handy browser extension for sending web pages over, but NetNewsWire didn’t have anything quite like that in its Share menu—so I decided to build one!
“Send to reMarkable” takes whatever article you’re enjoying in NetNewsWire, formats it into a crisp PDF tailored perfectly for the tablet screen, and syncs it right to your reMarkable account. It preserves headings, lists, quotes, and code blocks seamlessly, and converts images to sharp grayscale for e-ink display. Just click Share, choose Send to reMarkable, and it arrives on your tablet in seconds!
Although I’ve built plenty of web apps over the years, this was actually my very first native Mac app! Claude Code helped with much of the heavy lifting on areas that were new to me—like share extensions, TextKit layout, keychain management, and code signing. I guided the design, set the overall direction, and tested everything on my own tablet.
The code is fully open source over on GitHub: mcat/remarkable-netnewswire-extension
The next step is making distribution easier for everyone. Right now, you’ll need to build it yourself using Xcode and a free Apple ID. To release a simple, downloadable installer, it needs to be signed and notarized with a paid Apple Developer account, so I’m currently considering getting one to ship a ready-to-use .dmg file.
If you use RSS and have a reMarkable tablet, I’d love to hear your thoughts and see if this is helpful for you!