The ciano is a multimedia converter for all the format you need.
群星
Stellarium is a free open source planetarium for your computer.
剪辑抓取
ClipGrab是YouTube，Vimeo，Facebook和许多其他在线视频网站的免费下载器和转换器。
录音机
This amazing program allows you to record your favourite music and audio to a file.
康星
KStars is a Desktop Planetarium by KDE. It provides an accurate graphical simulation of the night sky, from any location on Earth, at any date and time.
时移
System restore tool for Linux. Creates filesystem snapshots using rsync+hardlinks, or BTRFS snapshots.
塞拉斯蒂娅
Celestia – real-time 3D visualization of space
Kdenlive
Kdenlive 是 KDE 非线性视频编辑器的首字母缩写词。它主要针对 GNU/Linux 平台，但也适用于 BSD 和 MacOS。