The official site of Bigrats(硕鼠下载器) is http://www.flvcd.com/, which only provides Windows and Mac OSX version.
This project is the Linux version of Bigrats video downloader written in Golang with GUI by deploying GoQt. It will support Mac OSX in the future. This project has nothing to do with flvcd.com.
usage
The usage of bigrats-go is quite similar with the Windows version except that it uses avidemux to merge video segments.
Open Firefox--Preferences--Applications, choose bigrats binary file in the 'Action' column:
Install avidemux for merging video segments. Avidemux is not included in the default software repositories of Debian or CentOS/RHEL.
Debian users should add deb-multimedia repository by the instructions in https://deb-multimedia.org/ first,
and run: sudo apt-get install avidemux avidemux-cli
CentOS/RHEL users should add Nux repository by the instructions in http://li.nux.ro/repos.html first,
and run: sudo yum install avidemux avidemux-cli
Now you can use it like the official Windows version.