First install gif.ski using snap.
snap install gifski;
Then use ffmpeg to break down your video to frames:
ffmpeg -i video.mp4 frame%05d.png;
Finally use gif.ski to create your gif from the frames:
gifski -o clip.gif frame*.png;
Delete the frames if you do not need them, they will be taking a lot of space.
This post is also available in: Greek
