XAML Standard is a specification that defines a standard XAML vocabulary. With that vocabulary, frameworks that support XAML Standard can share common XAML-based UI definitions. The goal is for the first version, XAML Standard 1.0, to be available later this year. 

 sudo apt-get update
sudo apt-get upgrade -y
sudo apt-get install -y build-essential libc6-dev g++ gcc libglib2.0-dev pkg-config \
 git-core apache2 apache2-threaded-dev bison gettext autoconf automake libtool \
libpango1.0-dev libatk1.0-dev libgtk2.0-dev libtiff5-dev libgif-dev libglade2-dev curl \
python-software-properties gawk libjpeg-dev libexif-dev flex checkinstall intltool git \
libcairo2-dev libgnomecanvas2-dev libgnome2-dev libgnomeui-dev libgnomeprint2.2-dev \
libgnomeprintui2.2-dev libgtkhtml3.14-dev libgtksourceview2.0-dev librsvg2-dev libvte-dev \
libnspr4-dev libnss3-dev libwebkit-dev apache2-threaded-dev libpng12-dev libfontconfig1-dev \
libfreetype6-dev zlib1g-dev libjpeg8-dev libjpeg-turbo8-dev libart-2.0-dev libgnomevfs2-dev \
libgnome-desktop-dev libnautilus-extension-dev libwnck-dev libvala-0.18-dev \
mono-addins-utils gtk-sharp2 gnome-sharp2

 * art-sharp.dll: no
* gnomevfs-sharp.dll: no
* gnome-sharp.dll: no

  gnome-sharp.dll requires libgnomecanvas, libgnome, and libgnomeui.

 sudo apt-get install monodevelop

 sudo apt-get purge cli-common mono-runtime

 export PATH=/opt/mono-3.0/bin:$PATH
export PKG_CONFIG_PATH=/opt/mono-3.0/lib/pkgconfig:$PKG_CONFIG_PATH

 sudo add-apt-repository ppa:keks9n/monodevelop-latest
sudo apt-get update
sudo apt-get install monodevelop-latest

ASP.NET Core provides better support for clean, testable, maintainable architectures than any of its predecessors. Learn the underlying principles that apply to project/solution organization, how best to arrange your projects to support clean code, and how to refactor existing solutions toward this architecture. Examples will use ASP.NET Core but the principles covered apply to all languages and platforms.  

In almost ten years in the field I've never met anyone with an MS dev cert. 

With .NET 6 previews starting right around the corner, it is time to start getting excited for the new .NET Multi-platform App UI (MAUI) that was announced at BUILD 2020. This year of .NET has a lot of amazing things for client application developers. Let’s review the highlights and set your expectations for the year ahead. 

When you start working on a new web application you will probably need to analyze different tools to deal with the different functionalities that you have to work on. As soon as you start searching for alternatives you are going to run across Angular and React, they are without any doubt two of the major options to consider, at least till today.