How to manage sensitive data natively by using Rust, Node.js
Sometimes you need to hide sensitive data (password, login, secret key, user’s pii etc.) within an application level.
There are a lot of different tools which already handle that. I prefer vault as best for such purpose.
Meanwhile it may be a situation when your team do not need vault integration cause there is a simple script or tool which should just work.
How to manipulate data at the individual bit level
Powerful thing, which allows you significantly increase a performance in multiplying, addition and dividing numbers.
A bit Wiki theory: https://en.wikipedia.org/wiki/Bitwise_operation
XMPP messaging - how to work with web-chats and build cross-platform
XMPP - Extensible Messaging and Presence Protocol, which streams different XML stanzas over a network. It was developed in 1998 and official shared in 1999.
A lot of helpful services, technologies and tools were designed by XMPP standard and they exist today.