You can add a custom string to your build version by running: WIRESHARK_VERSION_EXTRA=-MyCustomFeature export WIRESHARK_VERSION_EXTRA before compiling. Key Technical Considerations for Linux
Once I know this, I can provide the exact code or commands you need. How to install Wireshark - Ask Ubuntu
Here are the primary ways to create features for Wireshark on Linux: 1. Create a Lua Plugin (Easiest Method)