sunamo 

Advanced working with base .NET type (parsing etc.)

Wrapper around FluentFtp library

Wrapper around MsgReader package

Library with templates for throwing exceptions

Values shared across many packages

Enums shared across many packages

Shared library with data classes passed into methods as arguments

Shared delegates across many packages

Advanced working with colors

Methods for show Countdown and other UI in cmd

Support for language, independent of translating solution

Shared packages across packages with instance data-holder classes

Dictionary where every key is value and vice versa

For working with extensions of files

Interfaces shared across many packages

Almost all extensions method which I'm using

One of base foundation for sunamo's app platform - second is SunamoPlatformUwpInterop

Generating string output in various formats

Just fork from https://www.nuget.org/packages/fmdev.XliffParser, due to .NET 5+

ReadAllText, WriteAllText etc. with some magic ability