jackos

Install rustlings-fix and run it:

cargo install rustlings-fix
rustlings-fix

For more information on how the file this generates works checkout the Rust Analyzer Manual

ruggeri

Warmup: What Is A Programming Language?

A proof is a argument that a statement is true, where the argument is written in a formalized, very specific language. The concept of what a proof is can be confusing, so I want to make an extended analogy to computer programs and programming languages.

(I think that people who know computer programming are in a uniquely good position to understand mathematical logic.)

stueja

GUI application via Wayland from Ubuntu LXD container on Arch Linux host

Sources

Install Wayland in Ubuntu: https://askubuntu.com/questions/832509/how-to-install-wayland-on-ubuntu-16-04-lts

Start X applications in a container: https://blog.simos.info/how-to-run-graphics-accelerated-gui-apps-in-lxd-containers-on-your-ubuntu-desktop/

Wayland in container: https://unix.stackexchange.com/questions/330366/how-can-i-run-a-graphical-application-in-a-container-under-wayland/359244#359244

trietptm

Xiaomi's locked bootloader is insecure and useless

Your phone should have a locked bootloader, as it ensures the integrity of the software running on the device. This is especially relevant for Xiaomi phones, which are often loaded with all sorts of crapware by shady merchants. These vendor ROM's are a serious security risk. You really don't want to run that shit, so do your research very carefully when importing a Xiaomi device to ensure it hasn't been tampered with.

So, Xiaomi makes these nice phones and those vendors just ruin it all. They do the logical thing and start locking devices. But even today, vendor ROM's are still a thing! Even the brand new edgeless Mi Mix isn't safe.

How is this possible?

Through a wide open back door called EDL mode. To flash anything you want, all you need is a "deep flash cable" from [Aliexpress](https://www.aliexpress.com/wholesale?catId=0&SearchText=xiaomi+deep+fl

smac89

Determine your device id

1. Unplug your device from the computer and type lsusb in the terminal. You should get an output similar to this:

Bus 002 Device 002: ID 8087:8000 Intel Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller

DarinM223

My explanation of the main concepts in Rust

There are three main concepts with Rust:

1. Ownership (only one variable "owns" the data at one time, and the owner is in charge of deallocating)
2. Borrowing (you can borrow a reference to an owned variable)
3. Lifetimes (all data keeps track of when it will be destroyed)

These are fairly simple concepts, but they are often counter-intuitive to concepts in other languages, so I wanted to give a shot at