A collection of articles that serve as a reference or building blocks of either software development, engineering or open source such as Git or Linux references.
Open Source Software
Bit masks are a computer science concept; in a nutshell, they represent options which can be combined in a variety of ways. A very basic example colors. Blue and Green combined create yellow. This can be represented in bit masks. The following example is sourced from the Bit field article
Tools of Open Source
I found myself in a situation where I needed to list all of the global npm packages I had installed on a (windows) server. The command, it turned out, was quite simple: npm ls --global npm ls itself will list the packages installed locally which can be helpful unto itself.