Ubuntu package

To install Curlew in ubtunu/mint, run these commands in a terminal:

sudo add-apt-repository ppa:noobslab/apps
sudo apt update
sudo apt install curlew

Or just download deb file from SourceForge

Fedora RPM package

You can download Curlew as rpm packages in Fedora from Here

Source code

To install Curlew from source, please download zip file directly from GitHub.

FFmpeg binary

You can download ffmpeg binary (static build) from here.