With the development of network technology, our demand for file synchronization and backup is also becoming stronger. While various web disk services provide us with convenience, they also bring a lot of restrictions and risks in terms of speed, security and privacy. There are many cloud synchronization solutions, such as Seafile and Nextcloud, which are feature-rich but bulky and difficult to deploy cloud disk programs. But if we only need to synchronize files, then a better choice is Syncthing. In comparison, it is lighter, easier to deploy and use, more secure, and especially has faster file transfer.

fSpy is a free and open-source application for quick and easy still image camera matching on Windows, Mac and Linux platforms, developed by Stuffmatic (Per Gantelius) from Sweden. It can calculate the properties (field of view, focal length, position and orientation) of the real camera from a photo, and transfer this data to the virtual camera of 3D software for use.

MatterControl is a free and open-source 3D printer control software for Windows, Mac and Linux platforms, developed by 3D printer retailer MatterHackers. It lets you design, organize, and manage your 3D prints. As the 3D printing market continues to heat up and become more competitive, its user base has been growing.

Many game developers or sound collectors would like to extract various sound assets (mainly sound effects and background soundtracks) from some games. Of course, games use very different sound file formats, and have special extraction tools. Some of them use FSB format to encapsulate audio files. To extract sound resources from such files, you need a special tool Aezay FSB Extractor.

Firewall is the strongest line of defense in the system, also a barrier between the intranet and the extranet (Internet), and protects our computer by controlling the flow of packets in and out and preventing access by illegal users according to rules predefined by the system administrator. The built-in Windows Firewall is not only not powerful enough, but also difficult for the average computer users to configure and maintain (so few people use it). That's why there are many third-party firewall programs like simplewall.