Personal tutorial storage place of Thomas Ludwig
Steam is great under Ubuntu but some games have problems with PulseAudio sound. Sometimes it happends that the sound has short laggings in combination with small cuts: It has the feeling that the realtime behaviour is not giving in steam games. PulseAudio is one of the best sound server: It allows things like transferring the audio to a different machine, changing the sample format or channel count and mixing several sounds into one. I will give you a short guide how you can optimize your PulseAudio settings for steam.
The Raspberry Pi is a low cost, credit-card sized computer that plugs into a computer monitor or TV, and uses a standard keyboard and mouse. It has the ability to interact with the outside world, and has been used in a wide array of digital maker projects, from music machines and parent detectors to weather stations and tweeting birdhouses with infra-red cameras. Arduino is a massive ecosystem, if there's a way for the Raspberry Pi General Purpose Input Output (GPIO) interface to adapt to Arduino pinouts, it is possible to use the Pi together with vast Arduino shields and hardware/software resources. The ARPI600 is just intended for this. The ARPI600 also supports XBee modules, which make it easy to add wireless feature to your projects.
Seafile is a private open source cloud storage to manage teams and organizations. It supports file syncing and sharing and editing and commenting files online. Furthermore, you can use it as a mobile office, where it is possible to access files from your mobile device. You can install it on your own machine and encrypt your files with your own password.