Sync X11 Clipboards
This is a small tool to keep the 2 X11 clipboards in sync.
There are a variety of other tools out there that have more features, like maintaining history and providing fancier UIs. I intentionally didn't want a tool that tracks history, since tools like password managers put sensitive information in the clipboard.
This tool simply links the "primary" and "clipboard" selection buffers together. Whenever one is changed, this tool claims ownership of the other selection buffer, and proxies all requests for the selection buffer data to the owner of the other buffer.
The X11 selection behavior behavior is awkwardly complex, and can really act more like a dynamic pipe than a simple static buffer.
Building
cd build && mkdir build
cmake ..
make