A battery-powered WiFi hotspot can provide useful services like file sharing even when you're off the grid. A Pi Zero 2 W as the hotspot with ownCloud installed does the trick.
Rust as a potential successor to C/C++. It claims to solve some memory safety issues while maintaining high performance, and it is now possible to write Linux kernel components in Rust. We look at Rust on embedded systems, where memory safety, concurrency, and security are equally important.