Based on this and this topics on Hovatek forum.

1. Download the bin from Releases.
2. Get vbmeta-sign.img (Or vbmeta.img if you are using samsung) from firmware files.
3. Open the terminal and execute the program VBMetaKeysExtractor pointing to the vbmeta.img path.

Ex:

./VBMetaKeysExtractor /home/user/vbmeta.img

4. Files will be extracted to same folder that contains the vbmeta.img file.

1. None, ready to use in any distro (If you are going to compile it yourself, install .NET SDK 6.0 or 7.0)

1. Make sure you have installed .NET SDK 6.0 or 7.0
2. Clone the repo with git clone https://github.com/Fijxu/VBMetaKeysExtractor-Linux
3. Go into the folder VBMetaKeysExtractor-Linux
4. Compile it with dotnet publish -r linux-x64 VBMetaKeysExtractor.sln --framework net6.0 --configuration Release or dotnet publish -r linux-x64 VBMetaKeysExtractor.sln --framework net7.0 --configuration Release